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TANIGUCHI Yoshiaki

    Department of Informatics　Professor
Last Updated :2024/04/26

Researcher Information

Degree

  • Ph.D.（2008 Osaka University）

URL

Research funding number

  • 50532579

ORCID ID

Researcher ID

  • E-9638-2010

J-Global ID

Profile

  • He received the Ph.D. degree from Osaka University, Japan, in 2008. He was an assistant professor at Osaka University from 2008 to 2014 and a lecturer at Kindai University from 2014 to 2018. Since 2018, he has been an associate professor at the Faculty of Science and Engineering, Kindai University. His research interests include information networks, cyber security, and ubiquitous computing. He is a member of IEEE, IPSJ and IEICE.

Research Interests

  • wireless mesh network   ubiquitous network   wireless sensor network   

Research Areas

  • Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Communication and network engineering
  • Informatics / Information networks
  • Informatics / Computer systems

Academic & Professional Experience

  • 2024/04 - Today  Kindai UniversityFaculty of InformaticsProfessor
  • 2020/04 - Today  Kindai UniversityInformatics Research Institute
  • 2016/04 - Today  Kindai UniversityGraduate School of Science and Engineering
  • 2022/04 - 2024/03  Kindai UniversityFaculty of InformaticsAssociate Professor
  • 2019/10 - 2023/09  Kindai UniversityInformation Technology CenterDeputy Director
  • 2018/04 - 2022/03  Kindai UniversityFaculty of Science and EngineeringAssociate Professor
  • 2014/04 - 2018/03  Kindai UniversityFaculty of Science and EngineeringLecturer
  • 2008/10 - 2014/03  Osaka UniversityGraduate School of Information Science and TechnologyAssistant Professor
  • 2008/10 - 2014/03  Osaka UniversityCybermedia CenterAssistant Professor

Published Papers

  • A device for visualizing BLE advertising packets using an LED panel
    Shuhei Akiyama; Reiji Saeki; Yoshiaki Taniguchi
    IEEJ Transactions on Electronics, Information and Systems 144 (8) 2024/08 [Refereed]
  • Development of a Capture The Flag Exercise System Using Slack for Beginners
    Tatsuya Yamashita; Yoshiaki Taniguchi
    IPSJ Journal 65 (7) 2024/07 [Refereed]
  • A device identification method from BLE advertising packets with randomized MAC addresses based on regression of received signal strength
    Shuhei Akiyama; Yoshiaki Taniguchi
    IEICE Communications Express 13 (3) 64 - 67 2024/03 [Refereed]
  • A Security Risk Learning System in Public Wireless LAN Based on Failure Experiences
    Kohei Shiota; Yoshiaki Taniguchi; Nobukazu Iguchi
    IPSJ Journal 65 (3) 2024/03 [Refereed]
  • A synthesized voice discrimination method using characteristic sounds spoken by humans
    Yuya Nuruki; Yoshiaki Taniguchi
    Proceedings of IEEE ICCE Asia 2023 2023/10 [Refereed]
  • Device location recognition using channel state information in wireless LAN environments
    Yuya Izumoto; Taishin Mabuchi; Yoshiaki Taniguchi
    Proceedings of IEEE ICCE Asia 2023 2023/10 [Refereed]
  • Device identification in BLE packets from moving devices with randomized MAC addresses
    Shuhei Akiyama; Yoshiaki Taniguchi
    Proceedings of IEEE ICCE Asia 2023 2023/10 [Refereed]
  • Development of a security diagnosis system for wireless LAN environment
    Yuya Izumoto; Yoshiaki Taniguchi
    Proceedings of IEEE ICCE-TW 2023 2023/07 [Refereed]
  • Training System for Countermeasures Against DDoS Attacks Targeting Cloud Environments
    Susumu Manabe; Yoshiaki Taniguchi; Nobukazu Iguchi
    IPSJ Transactions on Digital Practices 4 (3) 2023/07 [Refereed]
  • Development of a management support system for IoT devices using Wi-Fi channel state information
    Ryota Inaba; Yoshiaki Taniguchi; Nobukazu Iguchi
    Proceedings of IEEE GCCE 2022 2022/10 [Refereed]
  • Yoshiaki Taniguchi; Kaito Muto
    IEEJ Transactions on Electrical and Electronic Engineering 17 (9) 1377 - 1379 2022/09 [Refereed]
  • A self-organizing noise signal transmission method to make eavesdropping difficult in wireless networks
    Takumi Oyama; Yoshiaki Taniguchi
    Proceedings of IEEE ICCE-TW 2022 2022/07 [Refereed]
  • Development and evaluation of a hands-on system incorporating the attacker’s perspective for learning cross-site scripting countermeasures
    Kazuri Kishimoto; Yoshiaki Taniguchi; Nobukazu Iguchi
    IPSJ Transactions on Computers and Education 8 (2) 2022/06 [Refereed]
  • Yoshiaki Taniguchi; Kohei Morimoto
    IEEJ Transactions on Electrical and Electronic Engineering 17 (1) 151 - 153 2022/01 [Refereed]
  • Evaluation of data forwarding methods for fish farm monitoring system with energy harvesting
    Takumi Komura; Yoshiaki Taniguchi
    Proceedings of ICIT 2021 2021/12 [Refereed]
  • Shuhei Akiyama; Ryoya Morimoto; Yoshiaki Taniguchi
    Proceedings of IEEE ICCE Asia 2021 2021/11 [Refereed]
  • Yuto Egawa; Yoshiaki Taniguchi; Nobukazu Iguchi
    IPSJ Journal 62 (5) 1298 - 1306 2021/05 [Refereed]
  • Yoshiaki Taniguchi; Tomoki Mukaida; Youji Ochi; Nobukazu Iguchi
    Proceedings of IEEE LifeTech 2021 418 - 419 2021/03 [Refereed]
  • Yoshiaki Taniguchi; Hiroto Masuda
    Proceedings of ICACT 2021 1 - 4 2021/02 [Refereed]
  • Kengo Goan; Yoshiaki Taniguchi; Nobukazu Iguchi
    IEICE Transactions on Information and Systems J104-D (2) 159 - 163 2021/02 [Refereed]
  • Yutaro Kobayashi; Yoshiaki Taniguchi; Youji Ochi; Nobukazu Iguchi
    Proceedings of IEEE ICCE Asia 2020 IEEE 123 - 126 2020/11 [Refereed]
  • Kazuri Kishimoto; Yoshiaki Taniguchi; Nobukazu Iguchi
    Proceedings of IEEE ICCE-TW 2020 623 - 624 2020/09 [Refereed]
  • Kohei Yamaura; Yoshiaki Taniguchi; Nobukazu Iguchi
    Proceedings of IEEE ICCE-TW 2020 625 - 626 2020/09 [Refereed]
  • Taishin Mabuchi; Yoshiaki Taniguchi; Kimiaki Shirahama
    Proceedings of IEEE ICCE-TW 2020 567 - 568 2020/09 [Refereed]
  • Makoto Yukawa; Yoshiaki Taniguchi; Nobukazu Iguchi
    IEICE Transactions on Information and Systems J103-D (8) 591 - 602 2020/08 [Refereed]
  • Yoshiaki Taniguchi; Kansei Oki
    Journal of Communications 15 (2) 164 - 170 2020/02 [Refereed]
  • Yuto Egawa; Yoshiaki Taniguchi; Nobukazu Iguchi
    Proceedings of ICIT 2019 ACM 357 - 361 2019/12 [Refereed]
  • Yoshiaki Taniguchi
    IEEJ Transactions on Electrical and Electronic Engineering 14 (11) 1725 - 1726 2019/11 [Refereed]
  • Yoshiaki Taniguchi; Mizuha Nakayama
    IEEJ Transactions on Electrical and Electronic Engineering 14 (8) 1275 - 1276 2019/08 [Refereed]
  • Natsuya Umegawa; Yoshiaki Taniguchi; Nobukazu Iguchi
    Proceedings of IEEE ICCE-TW 2019 581 - 582 2019/05 [Refereed]
  • Seiya Hirahata; Yoshiaki Taniguchi; Nobukazu Iguchi
    Proceedings of IEEE ICCE-TW 2019 397 - 398 2019/05 [Refereed]
  • Yuto Egawa; Yoshiaki Taniguchi; Nobukazu Iguchi
    Proceedings of IEEE ICCE-TW 2019 577 - 578 2019/05 [Refereed]
  • Yoshiaki Taniguchi; Ryota Uranishi
    IEEJ Transactions on Electrical and Electronic Engineering 14 (5) 804 - 805 2019/05 [Refereed]
  • Koji Abe; Masaru Tanaka; Hitoshi Habe; Yoshiaki Taniguchi; Nobukazu Iguchi
    Proceedigns of ICFSP 2018 105 - 109 2018/09 [Refereed]
  • Koichi Ishida; Yoshiaki Taniguchi; Nobukazu Iguchi
    IEICE Transactions on Information and Systems E101-D (8) 2145 - 2149 2018/08 [Refereed]
  • Koichi Ishida; Yoshiaki Taniguchi; Nobukazu Iguchi
    IEICE Transactions on Information and Systems Institute of Electronics, Information and Communication, Engineers, IEICE E101D (3) 808 - 811 1745-1361 2018/03 [Refereed]
     
    We have proposed a fish-farm monitoring system. In our system, the transmission range of acoustic waves from sensors attached to the undersides of the fish is not omnidirectional because of obstruction from the bodies of the fish. In addition, energy-efficient control is highly important in our system to avoid the need to replace the batteries. In this letter, we propose a data-gathering method for fish-farm monitoring without the use of control packets so that energy-efficient control is possible. Instead, our method uses the transmission-range volume as calculated from the location of the sensor node to determine the timing of packet transmission. Through simulation evaluations, we show that the data-gathering performance of our proposed method is better than that of comparative methods.
  • Hiroki Fujita; Yoshiaki Taniguchi; Nobukazu Iguchi
    2017 IEEE 6th Global Conference on Consumer Electronics, GCCE 2017 Institute of Electrical and Electronics Engineers Inc. 2017- 1 - 3 2017/12 [Refereed]
     
    In this paper, we develop a system to support learning of OpenFlow by visually associating controller configuration information and logical topology. In our system, the constructed topology is visually shown on a touchscreen display and a learner can easily confirm the topology. In addition, a learner can configure the controller by visual and simple operation using the touchscreen display. Therefore, a learner can learn the behavior of the OpenFlow even if the learner is a beginner. Through experimental evaluation, we confirmed that our system can be applied to an OpenFlow network consists of dozens of OpenFlow switches.
  • Koichi Ishida; Yoshiaki Taniguchi; Nobukazu Iguchi
    Proceedings of APWConCSE 2017 159 - 161 2017/12 [Refereed]
  • Takaaki Matsushita; Yoshiaki Taniguchi
    Proceedings of APWConCSE 2017 55 - 58 2017/12 [Refereed]
  • Yoshiaki Taniguchi
    IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences Institute of Electronics, Information and Communication, Engineers, IEICE E100A (11) 2547 - 2550 1745-1337 2017/11 [Refereed]
     
    We have proposed a fish farm monitoring system for the efficient farming of tuna. In our system, energy efficient and adaptive control of sensor node is highly important. In addition, since a sensor node is attached to the fish, the transmission range of sensor node is not omnidirectional. In this paper, we propose a data gathering mechanism for fish farm monitoring by extending a traditional desyncronization mechanism. In our proposed mechanism, by utilizing acknowledgment packets from the sink node, distributed and adaptive timing control of packet transmission is accomplished. In addition, we apply a reassignment mechanism and a sleep mechanism for improving the performance of our proposed mechanism. Through simulation experiments, we show that the performance of our proposed mechanism is higher than that of comparative mechanisms.
  • Yoshiaki Taniguchi; Koji Suganuma; Takaaki Deguchi; Go Hasegawa; Yutaka Nakamura; Norimichi Ukita; Naoki Aizawa; Katsuhiko Shibata; Kazuhiro Matsuda; Morito Matsuoka
    IEEE TRANSACTIONS ON CLOUD COMPUTING IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC 5 (2) 182 - 192 2168-7161 2017/04 [Refereed]
     
    In this paper, we propose a novel energy-efficient architecture for software-defined data center infrastructures. In our proposed data center architecture, we include an exhaust heat reuse system that utilizes high-temperature exhaust heat from servers in conditioning humidity and air temperature of office space near the data center. To obtain high-temperature exhaust heat, equipment such as server racks and air conditioners are deployed in tandem so that the aisles are divided into three types: cold, hot, and super-hot. In this paper, to investigate the fundamental characteristics of our proposed data center architecture, we consider various types of data center models and conduct numerical simulations that use results obtained by experiments at an actual data center. Through simulation, we show that the total power consumption by a data center with our proposed architecture is 27 percent lower than that by data center with a conventional architecture. In addition, it is also shown that the proposed tandem equipment arrangement is suitable for obtaining high-temperature exhaust heat and decreasing the total power consumption significantly under a wider range of conditions than in the conventional equipment arrangement.
  • A system for supporting migration to OpenFlow network
    Keita Nomura; Yoshiaki Taniguchi; Nobukazu Iguchi; Kenzi Watanabe
    IPSJ Journal 58 (3) 672 - 682 2017/03 [Refereed]
  • Koji Abe; Ryota Shimizu; Hitoshi Habe; Yoshiaki Taniguchi; Nobukazu Iguchi
    ACM International Conference Proceeding Series Association for Computing Machinery 6 - 10 2016/11 [Refereed]
     
    As a method for supporting fish farming, this paper presents a video scene detection when farmed fry start instantaneously in a tank due to environmental stimuli. Although some environmental stimuli such as sound noises or lighting startle the fry and the stimuli bring about the instantaneous response, actual situations around the tanks in which the stimuli occur are unclear in detail. From the fact the fry often die due to crashes to the tank's wall and between the fry by the response, a monitoring system for the fry and situation around the pool could find causes of the stimuli, and it could result in decrease of the death number of the fry. In this research, the fry which swim in a tank are monitored by a video cam- era and the video scenes at the response are detected by a SVM with a feature value which represents fry's acceleration using sequential frames of the moving image. Preparing the moving images which include scenes of the response by fish in a tank, performances of the proposed method were examined. From experimental results, accuracy ratios of the recall and the precision for the scene detection have shown more than 80% on average and 100% under normal illuminances (108.5 lux on average), respectively.
  • Yoshiaki Taniguchi; Hiroyuki Hisamatsu
    International Journal of Simulation: Systems, Science & Technology 17 (35) 1 - 5 2016/11 [Refereed]
  • Takuya Yoshida; Yoshiaki Taniguchi
    Information International Information Institute 19 (7A) 2661 - 2668 1343-4500 2016/07 [Refereed]
  • Twitter-based course support system considering relatedness needs
    Hiroyuki Hisamatsu; Yoshiaki Taniguchi
    International Journal of Computer and Information Technology 5 (2) 174 - 180 2016/03 [Refereed]
  • Implementation and evaluation of virtual machine-based network security learning system
    Kazuki Fukuyama; Yoshiaki Taniguchi; Nobukazu Iguchi
    IPSJ Journal 57 (3) 931 - 935 2016/03 [Refereed]
  • Takaaki Deguchi; Yoshiaki Taniguchi; Go Hasegawa; Yutaka Nakamura; Norimichi Ukita; Kazuhiro Matsuda; Morito Matsuoka
    IEICE TRANSACTIONS ON COMMUNICATIONS IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG E99B (2) 347 - 355 0916-8516 2016/02 [Refereed]
     
    In this paper, we propose a workload assignment policy for reducing power consumption by air conditioners in data centers. In the proposed policy, to reduce the air conditioner power consumption by raising the temperature set points of the air conditioners, the temperatures of all server back-planes are equalized by moving workload from the servers with the highest temperatures to the servers with the lowest temperatures. To evaluate the proposed policy, we use a computational fluid dynamics simulator for obtaining airflow and air temperature in data centers, and an air conditioner model based on experimental results from actual data center. Through evaluation, we show that the air conditioners' power consumption is reduced by 10.4% in a conventional data center. In addition, in a tandem data center proposed in our research group, the air conditioners' power consumption is reduced by 53%, and the total power consumption of the whole data center is exhibited to be reduced by 23% by reusing the exhaust heat from the servers.
  • Yoshiaki Taniguchi
    UKSIM-AMSS 10TH EUROPEAN MODELLING SYMPOSIUM ON COMPUTER MODELLING AND SIMULATION (EMS) IEEE 192 - 195 2473-3539 2016 [Refereed]
     
    In recent years, sensor network technologies have attracted attentions in the field of the primary industry such as the aquaculture industry. We have proposed a fish farm monitoring system for developing efficient farming of tuna. In our monitoring system, a sensor node is attached at fish and its sensing data are gathered at a sink node. In the monitoring environment, the size of fish is varied between 5 cm and 100 cm depending on the age of fish. Therefore, the communication environment is also varied depending on the age. In this paper, we investigate the effect of fish body size on the performance of communication in our monitoring system. Through simulation evaluations, we show that the size of fish significantly affects to the data gathering performance.
  • Koichi Ishida; Yoshiaki Taniguchi; Nobukazu Iguchi
    UKSIM-AMSS 10TH EUROPEAN MODELLING SYMPOSIUM ON COMPUTER MODELLING AND SIMULATION (EMS) IEEE 181 - 185 2473-3539 2016 [Refereed]
     
    One of the promising sensor network application is for the primary industry and we have proposed a fish farm monitoring system. In our system, sensor data monitored at a fish-mounted sensor node is transmitted to a sink node by using acoustic communication. Since we assume that a sensor node is attached at an abdominal cavity region of fish, the transmission range of acoustic wave is not omni-directional due to obstruction of fish body. In addition, energy efficient control is highly important in our system since it is difficult to replace battery of sensor node. In this paper, we propose a data gathering method taking into account energy efficiency and directional transmission range. In our method, we use the volume of transmission range to determine the timing of packet transmission. Our method does not require control packets for determining its transmission timing. Through simulation evaluations, we show that the data gathering performance of our proposed method is higher than that of comparative methods.
  • Yoshiaki Taniguchi
    International Journal of Simulation: Systems, Science and Technology UK Simulation Society 17 (32) 1 - 4 1473-804X 2016 [Refereed]
     
    In tuna farming, turbidity measurement is highly important since one of the cause of death of tuna is a choking death due to muddy water. In this paper, we consider to use visible light communication modules for estimation of turbidity in underwater environments. If these modules can be used as turbidity meters, additional introduction of dedicated turbidity meters is not necessary. In this paper, through experimental evaluations using off-the-shelf visible light communication modules, we investigate the effect of turbidity on the performance of visible light communication in an underwater environment.
  • Takaya Karasuno; Kazuhiko Masuga; Yoshiaki Taniguchi; Nobukazu Iguchi
    2016 IEEE 5TH GLOBAL CONFERENCE ON CONSUMER ELECTRONICS IEEE 481 - 482 2016 [Refereed]
     
    In network education, there are several benefits for conducting cooperative practice among a variety of learning levels of learners. We have proposed a hands-on IP network practice system by constructing a virtual network on a cloud server. In our past study, we introduced a pseudo cooperative practice function to our system so that cooperative practice with a companion agent can be accomplished even if there is no other learner for constructing a group. In this paper, we extend the pseudo cooperative practice function to deal with a variety of learning levels of learners. In our system, the companion agent changes its role automatically depending on the learner's learning level. Through questionnaire investigation, we show the effectiveness of pseudo cooperative practice.
  • Keita Nomura; Yoshiaki Taniguchi; Nobukazu Iguchi; Kenzi Watanabe
    PROCEEDINGS OF 2016 10TH INTERNATIONAL CONFERENCE ON COMPLEX, INTELLIGENT, AND SOFTWARE INTENSIVE SYSTEMS (CISIS) IEEE 595 - 598 2016 [Refereed]
     
    OpenFlow network technologies has attracted attention along with popularization of cloud environment and server virtualization since it enables flexible network configuration. It is expected that existing networks of many organizations will migrate to OpenFlow networks in the future. Since it takes a huge cost to replace all existing network devices to OpenFlow switches, many organizations consider to employ overlay OpenFlow networks where virtual OpenFlow devices are introduced at endpoint servers. In overlay OpenFlow networks, the cost for migration increases according to the number of servers. In this paper, we propose a system for supporting migration to an overlay OpenFlow network. Our proposed system acquires settings of servers in the existing network endpoints and reflects them to the overlay OpenFlow network. Through experimental evaluations, we confirm the behavior of the configuration acquisition function of our proposed system.
  • Yoshiaki Taniguchi; Hiroaki Tsutsumi; Nobukazu Iguchi; Kenzi Watanabe
    Scientific World Journal Hindawi Limited 2016 1 - 10 1537-744X 2016 [Refereed]
     
    Software-Defined Networking (SDN) has attracted attention along with the popularization of cloud environment and server virtualization. In SDN, the control plane and the data plane are decoupled so that the logical topology and routing control can be configured dynamically depending on network conditions. To obtain network conditions precisely, a network monitoring mechanism is necessary. In this paper, we focus on OpenFlow which is a core technology to realize SDN. We propose, design, implement, and evaluate a network monitoring system for OpenFlow networks. Our proposed system acts as a proxy between an OpenFlow controller and OpenFlow switches. Through experimental evaluations, we confirm that our proposed system can capture packets and monitor traffic information depending on administrator's configuration. In addition, we show that our proposed system does not influence significant performance degradation to overall network performance.
  • Yoshiaki Taniguchi; Hiroyuki Hisamatsu
    2016 7TH INTERNATIONAL CONFERENCE ON INTELLIGENT SYSTEMS, MODELLING AND SIMULATION (ISMS) IEEE 356 - 359 2166-0662 2016 [Refereed]
     
    In the case of cycling at night, it is helpful for cyclist if information on bad road surface condition is obtained autonomously. In this paper, we propose a system for autonomously monitoring road surface condition by using laser light and camera modules. In our system, the laser light module emits grid laser light, and the camera module captures the image of front road area. When our system detects bad road surface condition by processing obtained images, it alerts to the cyclist. In this paper, we apply template matching for detecting obstacles in the front of bicycle. In addition, we implement the system using off-the-shelf node, Raspberry PI, a laser module and a typical bicycle. Through experimental evaluations, we confirm that the monitoring system can detect obstacles in the front of bicycle.
  • Counting pedestrians passing through a line in crowded scenes by extracting optical flows
    Yoshiaki Taniguchi; Miki Mizushima; Go Hasegawa; Hirotaka Nakano; Morito Matsuoka
    Information 19 (1) 303 - 316 2016/01 [Refereed]
  • Evaluation of acoustic data communication for fish farm monitoring
    Yoshiaki Taniguchi
    Proceedings of DNCOCO 2015 195 - 199 2015/12 [Refereed]
  • Yoshiaki Taniguchi; Kodai Nishii; Hiroyuki Hisamatsu
    International Journal of Simulation: Systems, Science and Technology UK Simulation Society 16 (6) 1.1 - 1.6 1473-804X 2015/12 [Refereed]
     
    Monitoring bad road surface condition, such as break, potholes, obstacles, is helpful to prevent accidents in the case of cycling. In this paper, we consider to use low-cost ultrasonic distance sensor for monitoring road surface condition. We design and implement a monitoring system using an off-the-shelf node with a low-cost ultrasonic distance sensor. In the system, ultrasonic signal is periodically emitted to measure the distance from the system to the road so that the road surface condition can be estimated. To limit the sensing region, the ultrasonic distance sensor is covered by a plastic shield plate. Through experimental evaluations, we show that the monitoring system can detect the 360 cm away obstacle on road in the front area of bicycle. In addition, we show that the system also can detect a hole in the front area of bicycle.
  • Takuya Yoshida; Yoshiaki Taniguchi
    Proceedings of ECCS 2015 [情報処理学会関西支部] 46 - 53 1884-197X 2015/11 [Refereed]
  • Evaluation of interference estimation methods for graph coloring-based link scheduling in wireless relay networks
    Yoshiaki Taniguchi
    Information 18 (8) 3705 - 3716 2015/08 [Refereed]
  • Design and evaluation of self-organizing scheduling mechanism adaptive to traffic load for wireless networks
    Yoshiaki Taniguchi; Kyohei Inoue
    Information 18 (6A) 2503 - 2512 2015/06 [Refereed]
  • Yoshiaki Taniguchi
    2015 THIRD INTERNATIONAL CONFERENCE ON ARTIFICIAL INTELLIGENCE, MODELLING AND SIMULATION (AIMS 2015) IEEE 408 - 411 2470-8992 2015 [Refereed]
     
    In undersea environment, development of low-cost communication module is highly important for dissemination of undersea wireless sensor networks. Some undersea wireless sensor network applications do not require high performance communication capability such as transmission distance. If the terrestrial low-cost communication module can be used in the undersea environment, it is possible to use the module in some undersea wireless sensor networks. In this paper, we evaluate the communication capability of a commercially available WiFi device in an undersea environment. In the experiment, we use a mobile access point as a sender node and an Android tablet as a receiver node. Through evaluations, we show that the transmission distance of WiFi device is around 0.1 m in an undersea environment. In addition, we evaluate a fish farm monitoring system based on WiFi modules through simulations.
  • Kazuki Fukuyama; Yoshiaki Taniguchi; Nobukazu Iguchi
    2015 IEEE 4TH GLOBAL CONFERENCE ON CONSUMER ELECTRONICS (GCCE) IEEE 21 - 22 2015 [Refereed]
     
    Education of network security has attracted a lot of attentions due to increasing unauthorized access, lack of engineers who have network security skills, and so on. Although practice using actual computer networks is highly important for network security education, it requires costs to prepare a computer network for practice. We have proposed a network security learning system by constructing a virtual network on one PC so that low-cost, easy and safe practice can be accomplished. In this paper, we introduce an attacker agent that automatically attacks servers in a fixed pattern for supporting practical learning of defense techniques safely on a virtual network.
  • Yoshiaki Taniguchi; Kodai Nishii; Hiroyuki Hisamatsu
    PROCEEDINGS 7TH INTERNATIONAL CONFERENCE ON COMPUTATIONAL INTELLIGENCE, COMMUNICATION SYSTEMS AND NETWORKS CICSYN 2015 IEEE 31 - 34 2015 [Refereed]
     
    In the case of cycling at a blind road, at night or cycling by elderly people, it is helpful to prevent accidents if information on bad road surface condition, such as break, potholes, obstacles, bumps, is preliminary obtained. In this paper, we consider to use a low-cost ultrasonic distance sensor attached on a bicycle for monitoring the road surface conditions in the front area. We design and implement a road surface condition monitoring system using an off-the-shelf node Arduino, an ultrasonic distance sensor, and a typical bicycle. In the implemented system, to limit the sensing region, the ultrasonic distance sensor is covered by a plastic shield plate. Through experimental evaluations, we show that the monitoring system can detect the 223 cm away obstacle on road in the front area of moving bicycle.
  • Xun Shao; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano
    IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG E97D (12) 3163 - 3170 1745-1361 2014/12 [Refereed]
     
    As interdomain routing protocol, BGP is fairly simple, and allows plenty of policies based on ISPs' preferences. However, recent studies show that BGP routes are often non-optimal in end-to-end performance, due to technological and economic reasons. To obtain improved end-to-end performance, overlay routing, which can change traffic routing in application layer, has gained attention. However, overlay routing often violates BGP routing policies and harms ISPs' interest. In order to take the advantage of overlay to improve the end-to-end performance, while overcoming the disadvantages, we propose a novel interdomain overlay structure, in which overlay nodes are operated by ISPs within an ISP alliance. The traffic between ISPs within the alliance could be routed by overlay routing, and the other traffic would still be routed by BGP. As economic structure plays very important role in interdomain routing, so we propose an effective and fair charging and pricing scheme within the ISP alliance in correspondence with the overlay routing structure. Finally, we give a simple pricing algorithm, with which ISPs can find the optimal prices in the practice. By mathematical analysis and numerical experiments, we show the correctness and convergence of the pricing algorithm.
  • Shuto Fujii; Yoshiaki Taniguchi; Go Hasegawa; Morito Matsuoka
    SPRINGERPLUS SPRINGER INTERNATIONAL PUBLISHING AG 3 1 - 10 2193-1801 2014/06 [Refereed]
     
    In this paper, we propose a method for estimating the number of pedestrians walking in opposite directions, as in cases of a shopping street or a sidewalk in a downtown area. The proposed method utilizes a compound-eye sensor that is constructed by placing two binary sensors for the pedestrians' movement direction and multiple binary sensors for the vertical direction of the pedestrians' movement direction. A number of Monte Carlo simulations about the movement of pedestrians are conducted, and the output history of the compound-eye sensor is obtained in each simulation. The simulation scenario with a small difference of the output history of the compound-eye sensor is selected to estimate the number of pedestrians. Evaluation results show that in the field whose width is 8 [m] the relative error in the proposed method is the smallest by using 2 x 8 binary sensors.
  • Design and evaluation of time slot assignment algorithm for IEEE 802.16j relay networks
    Go Hasegawa; Shoichi Takagi; Yoshiaki Taniguchi; Hirotaka Nakano; Morito Matsuoka
    International Journal of Computer Networks 6 (3) 50 - 65 2014/06 [Refereed]
  • Modeling and evaluation of a ceiling-mounted compound-eye sensor
    Yoshiaki Taniguchi; Hirotaka Nakano
    Information 17 (2) 663 - 676 2014/02 [Refereed]
  • Kohei Higo; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano; Morito Matsuoka
    2014 16TH INTERNATIONAL CONFERENCE ON ADVANCED COMMUNICATION TECHNOLOGY (ICACT) IEEE 437 - 441 1738-9445 2014 [Refereed]
     
    In IEEE 802.16j relay networks, time division multiple access (TDMA) is adopted for sharing wireless network resources while avoiding radio wave interference. Time slot assignment determines the degree of spatial reuse of wireless network resources and radio interference strength, which affects network performance. The relay network performance is also influenced by various factors, such as background noise level, path loss exponent, density of relay nodes, and transmission signal strength. In this paper, we present the results of multiple regression analysis of IEEE 802.16j relay network throughput. We first summarize the network environment parameters that affect the throughput of relay networks and conduct extensive simulation experiments with various sets of parameter values. From the simulation results, we investigate the relative effect of parameters on throughput performance by multiple regression analysis. The analysis results show that background noise level and path loss exponent are the key parameters for determining relay network throughput. We also obtain a regression equation to estimate the throughput with enough accuracy.
  • Shoichi Takagi; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano; Morito Matsuoka
    2014 SEVENTH INTERNATIONAL CONFERENCE ON MOBILE COMPUTING AND UBIQUITOUS NETWORKING (ICMU) IEEE 83 - 84 2014 [Refereed]
     
    In this paper, we propose two heuristic algorithms for time slot assignment in IEEE 802.16j relay networks. In the proposed methods, we calculate an appropriate group of time slots for each link in the network or calculate an appropriate group of links for each time slot. We show that the latter algorithm is better in terms of the balance between the calculation time and network performance.
  • Yoshiaki Taniguchi
    PROCEEDINGS 2014 4TH INTERNATIONAL CONFERENCE ON ARTIFICIAL INTELLIGENCE WITH APPLICATIONS IN ENGINEERING AND TECHNOLOGY ICAIET 2014 IEEE 292 - 297 2014 [Refereed]
     
    In time division multiple access (TDMA) based wireless networks, graph coloring based link scheduling mechanisms are often considered to assign time slots to links. A graph coloring based link scheduling mechanism requires a radio interference estimation method to make a conflict graph from a wireless network topology, and the protocol method is usually used among radio interference estimation methods. In this paper, we propose a radio interference estimation method for wireless relay networks, where the network topology is a tree. Through simulation experiments, we show that the accuracy of radio interference estimation with our proposed method is improved compared to that with the protocol method.
  • Takaaki Deguchi; Yoshiaki Taniguchi; Go Hasegawa; Yutaka Nakamura; Norimichi Ukita; Kazuhiro Matsuda; Morito Matsuoka
    2014 IEEE 3RD INTERNATIONAL CONFERENCE ON CLOUD NETWORKING (CLOUDNET) IEEE 420 - 425 2374-3239 2014 [Refereed]
     
    We proposed a workload assignment policy for reducing power consumption by air conditioners in data centers. Power consumption was estimated by computational fluid dynamics for both the conventional equipment arrangement and the tandem arrangement newly developed to reuse the exhaust heat from servers. To reduce the air conditioner power consumption by raising the temperature set points of the air conditioners, the temperatures of all server back-planes were equalized by moving workload from the servers with the highest temperatures to the servers with the lowest temperatures. Consequently, the air conditioners' power consumption was reduced by 10.4% in the conventional arrangement. In the tandem arrangement, the air conditioners' power consumption was reduced by 53%, and also the total power consumption of the whole data center was exhibited to be reduced by 23% by reusing the exhaust heat from the servers.
  • Yoshiaki Taniguchi
    2014 INTERNATIONAL CONFERENCE ON COMPUTER, COMMUNICATIONS, AND CONTROL TECHNOLOGY (I4CT) IEEE 130 - 134 2014 [Refereed]
     
    Under regular or heavy traffic conditions, contention-free mechanisms such as time division multiple access (TDMA) are considered as under layer mechanisms in wireless networks. In TDMA mechanisms, links are scheduled by assigning different time slots for links that interfere each other. In this paper, we propose a self-organizing link scheduling mechanism for single-hop wireless networks considering traffic load of each wireless link. The proposed mechanism is based on a conventional desynchronization-based TDMA mechanism. Through simulation evaluations, it is shown that our proposed mechanism can schedule links in a self-organizing manner in accordance with traffic load of each link.
  • Yoshiaki Taniguchi; Masahiro Sasabe; Takafumi Watanabe; Hirotaka Nakano
    SCIENTIFIC WORLD JOURNAL HINDAWI PUBLISHING CORPORATION 2014 1 - 7 1537-744X 2014 [Refereed]
     
    We propose a method for tracking multiple pedestrians using a binary sensor network. In our proposed method, sensor nodes are composed of pairs of binary sensors and placed at specific points, referred to as gates, where pedestrians temporarily change their movement characteristics, such as doors, stairs, and elevators, to detect pedestrian arrival and departure events. Tracking pedestrians in each subregion divided by gates, referred to as microcells, is conducted by matching the pedestrian gate arrival and gate departure events using a Bayesian estimation-based method. To improve accuracy of pedestrian tracking, estimated pedestrian velocity and its reliability in a microcell are used for trajectory estimation in the succeeding microcell. Through simulation experiments, we show that the accuracy of pedestrian tracking using our proposed method is improved by up to 35% compared to the conventional method.
  • Pedestrian counting based on the number of salient points considering non-linear effect of occlusions
    Kazuyuki Hashimoto; Yoshiaki Taniguchi; Go Hasegawa; Hirotaka Nakano; Morito Matsuoka
    Proceedings of CSECS 2013 26 - 33 2013/12 [Refereed]
  • Counting pedestrians passing through a line in video sequences based on optical flow extraction
    Miki Mizushima; Yoshiaki Taniguchi; Go Hasegawa; Hirotaka Nakano; Morito Matsuoka
    Proceedings of CSECS 2013 129 - 136 2013/12 [Refereed]
  • Yoshiaki Taniguchi; Go Hasegawa; Hirotaka Nakano
    Journal of Communications 8 (6) 389 - 397 1796-2021 2013/06 [Refereed]
     
    In this paper, we propose self-organizing trans mission and sleep scheduling mechanisms for periodically gathering sensor data at a base station in wireless sensor networks. In our proposed mechanisms, we use a conventional self-organizing communication mechanism based on phase-locking in a pulse-coupled oscillator model to propagate sensor data from the edge of the network to the base station in order of hop counts from the base station. In addition, we propose two mechanisms to avoid collisions among sensor nodes with the same hop count, a randomization-based mechanism and a desynchronizationbased mechanism based on anti-phase synchronization in the pulse-coupled oscillator model. Through simulation experiments, we show that our proposed mechanism significantly improves the data gathering ratio and energy-efficiency in comparison with the conventional mechanism. ©2013 Engineering and Technology Publishing.
  • Effect of radio wave obstruction by obstacles on performance of IEEE 802.16j wireless multi-hop relay networks
    Go Hasegawa; Yuuki Ise; Yoshiaki Taniguchi; Hirotaka Nakano
    International Journal on Advances in Networks and Services 6 (1-2) 17 - 26 2013/06 [Refereed]
  • Monte Carlo-based bi-directional pedestrian counting method for compound-eye sensor systems
    Shuto Fujii; Yoshiaki Taniguchi; Go Hasegawa; Hirotaka Nakano
    Journal of Emerging Trends in Computing and Information Sciences 4 48 - 57 2013/04 [Refereed]
  • Economically efficient interdomain overlay network based on ISP alliance
    Xun Shao; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano
    Proceedings of ICNS 2013 153 - 159 2013/03 [Refereed]
  • Pedestrian counting in video sequences based on optical flow clustering
    Shizuka Fujisawa; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano
    International Journal of Image Processing 7 (1) 1 - 16 2013/02 [Refereed]
  • Xun Shao; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano
    IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG E96D (2) 193 - 201 1745-1361 2013/02 [Refereed]
     
    Multihoming is widely used by Internet service providers (ISPs) to obtain improved performance and reliability when connecting to the Internet. Recently, the use of overlay routing for network application traffic is rapidly increasing. As a source of both routing oscillation and cost increases, overlay routing is known to bring challenges to ISPs. In this paper, we study the interaction between overlay routing and a multihomed ISP's routing strategy with a Nash game model, and propose a routing strategy for the multihomed ISP to alleviate the negative impact of overlay traffic. We prove that with the proposed routing strategy, the network routing game can always converge to a stable state, and the ISP can reduce costs to a relatively low level. From numerical simulations, we show the efficiency and convergence resulting from the proposed routing strategy. We also discuss the conditions under which the multihomed ISP can realize minimum cost by the proposed strategy.
  • Yoshiaki Taniguchi; Masahiro Sasabe; Satoshi Aihara; Hirotaka Nakano
    SCIENTIFIC WORLD JOURNAL HINDAWI PUBLISHING CORP 2013 1 - 8 1537-744X 2013 [Refereed]
     
    We consider a pedestrian tracking system where sensor nodes are placed only at specific points so that the monitoring region is divided into multiple smaller regions referred to as microcells. In the proposed pedestrian tracking system, sensor nodes composed of pairs of binary sensors can detect pedestrian arrival and departure events. In this paper, we focus on pedestrian tracking in microcells. First, we investigate actual pedestrian trajectories in a microcell on the basis of observations using video sequences, after which we prepare a pedestrian mobility model. Next, we propose a method for pedestrian tracking in microcells based on the developed pedestrian mobility model. In the proposed method, we extend the Bayesian estimation to account for time-series information to estimate the correspondence between pedestrian arrival and departure events. Through simulations, we show that the tracking success ratio of the proposed method is increased by 35.8% compared to a combinatorial optimization-based tracking method.
  • Xun Shao; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano
    IEICE Transactions on Information and Systems Institute of Electronics, Information and Communication, Engineers, IEICE E96-D (5) 1115 - 1124 1745-1361 2013 [Refereed]
     
    The Internet is composed of many distinct networks, operated by independent Internet Service Providers (ISPs). The traffic and economic relationships of ISPs are mainly decided by their routing policies. However, in today's Internet, overlay routing, which changes traffic routing at the application layer, is rapidly increasing and this challenges the validity of ISPs' existing agreements. We study here the economic implications of overlay routing for ISPs, using an ISP interconnection business model based on a simple network. We then study the overlay traffic patterns in the network under various conditions. Combining the business model and traffic patterns, we study the ISPs' cost reductions with Bill-and-Keep peering and paid peering. We also discuss the ISPs' incentive to upgrade the network under each peering strategy. Copyright © 2013 The Institute of Electronics, Information and Communication Engineers.
  • Tomoya Kitayama; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano
    International Conference on Information Networking 606 - 611 1976-7684 2013 [Refereed]
     
    IEEE 802.16j-based wireless relay networks adopt time division multiple access, where time slots are assigned to communication links as transmission opportunities. When we employ adaptive modulation and coding for data transmission on wireless links, the transmission bitrate is affected by the signal to interference and noise ratio. Therefore, algorithms that assign time slots to links are important for enhancing the performance of relay networks. When we employ relay networks to access backhaul networks, the bottleneck link is likely to be located near the gateway node, and dominates the performance of the relay network. In this paper, we propose a time slot-adding algorithm to improve bottleneck link throughput in IEEE 802.16j relay networks. Although we employ an existing method for the initial assignment of time slots to links in the network, we introduce novel algorithm to add more time slots to the bottleneck link. Performance evaluations confirm that the proposed method improves data transfer throuzhput by up to around 30%. © 2013 IEEE.
  • Ryosuke Mine; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano
    2013 IEEE 27TH INTERNATIONAL CONFERENCE ON ADVANCED INFORMATION NETWORKING AND APPLICATIONS WORKSHOPS (WAINA) IEEE 107 - 113 2013 [Refereed]
     
    Time slot assignment algorithms in IEEE 802.16j multi-hop relay networks often assume simple radio interference models based on the distance or the number of hops between nodes for simplicity. However, by using more detailed models that consider the signal to interference plus noise ratio, we expect to obtain more effective time slot assignment which gives higher network performance. In this paper, we evaluate the performance of time slot assignment algorithms based on various radio interference models by considering differences in the radio propagation environment and the use of adaptive modulation and coding. Through performance evaluations, we clarify the effect of the parameter settings in the radio interference models on the network performance. We also demonstrate that by carefully choosing the parameters in the simple models, we can obtain almost the same network performance as from the detailed models.
  • Go Hasegawa; Shinpei Tanaka; Yoshiaki Taniguchi; Hirotaka Nakano
    IEICE TRANSACTIONS ON COMMUNICATIONS IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG E95B (5) 1793 - 1801 0916-8516 2012/05 [Refereed]
     
    In this paper, the authors focus on upstream transmission in TDMA-based IEEE 802.16j and propose two time slot assignment algorithms to decrease end-to-end transmission latency. One of the proposed algorithms assigns time slots considering the hop count from a gateway node, and the other takes the path from the relay node to the gateway node into account. In addition, a restriction in assigning time slots is introduced to reduce the delay at each relay node. The algorithms with the restriction assign later time slots considering the time slot order of links connecting a relay node. The performance of the proposed algorithms is evaluated through simulation experiments from the viewpoints of frame size and end-to-end transmission latency, and it is confirmed that the proposed algorithms achieve small transmission latency regardless of packet generation rate in the network, and decrease the transmission latency by up to 70% compared with the existing algorithm.
  • Evaluation of IEEE 802.16j relay network performance considering obstruction of radio wave propagation by obstacles
    Yuuki Ise; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano
    Proceedings of ICNS 2012 63 - 68 2012/03 [Refereed]
  • Node repositioning method based on topology information in IEEE 802.16j relay networks
    Takafumi Shigefuji; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano
    Proceedings of ICNS 2012 57 - 62 2012/03 [Refereed]
  • Pedestrian counting in video sequences using optical flow clustering
    Shizuka Fujisawa; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano
    Proceedings of CSS 2012 51 - 56 2012/03 [Refereed]
  • Time slot assignment algorithms for reducing transmission latency in IEEE 802.16j multi-hop relay networks
    Go Hasegawa; Rintaro Ishii; Yoshiaki Taniguchi; Hirotaka Nakano
    Journal of Communications and Networking 2 (3) 2012/03 [Refereed]
  • Shuto Fujii; Yoshiaki Taniguchi; Go Hasegawa; Hirotaka Nakano
    2012 INTERNATIONAL CONFERENCE ON COMPUTER SYSTEMS AND INDUSTRIAL INFORMATICS (ICCSII) IEEE 1 - 6 2012 [Refereed]
     
    In this paper, we propose a method for estimating the number of pedestrians walking in opposite directions, as in the case of a corridor. The proposed method utilizes a ceiling-mounted compound-eye sensor composed of two binary sensors with partially overlapping sensing regions. The output of the compound-eye sensor is sent to a monitoring server, where a number of Monte Carlo simulations are conducted. The simulation scenario with the smallest difference from the output history of the compound-eye sensor is selected as an estimate of the number of pedestrians. Simulations show that in crowded situations the relative error in the proposed method decreases by up to 45% compared to an existing method.
  • Taniguchi Yoshiaki; Kanzaki Akimitsu; Wakamiya Naoki; Hara Takahiro
    IMT Information and Media Technologies Editorial Board 7 (1) 448 - 457 1881-0896 2012 
    Wireless sensor network technologies have attracted a lot of attention in recent years. In this paper, we propose an energy-efficient data gathering mechanism using traveling wave and spatial interpolation for wireless sensor networks. In our proposed mechanism, sensor nodes schedule their message transmission timing in a fully-distributed manner such that they can gather sensor data over a whole wireless sensor network and transmit that data to a sink node while switching between a sleep state and an active state. In addition, each sensor node determines the redundancy of its sensor data according to received messages so that only necessary sensor data are gathered and transmitted to the sink node. Our proposed mechanism does not require additional control messages and enables both data traffic and control traffic to be drastically reduced. Through simulation experiments, we confirmed that with our proposed mechanism, the number of message transmissions can be reduced by up to 77% and the amount of transmitted data can be reduced by up to 13% compared to a conventional mechanism.
  • Xun Shao; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano
    14th Asia-Pacific Network Operations and Management Symposium: "Management in the Big Data and IoT Era", APNOMS 2012 - Final Program 1 - 7 2012 [Refereed]
     
    Multihoming is widely used by Internet service providers (ISPs) to obtain improved performance and reliability when connecting to the Internet. Recently, the use of overlay routing for network application traffic is rapidly increasing. As a source of both routing oscillation and cost increases, overlay routing is known to bring challenges to ISPs. In this paper, we study the interaction between overlay routing and a multihomed ISP's routing strategy with a Nash game model, and propose a routing strategy for the multihomed ISP to alleviate the negative impact of overlay traffic.We prove that with the proposed routing strategy, the network routing game can always converge to a stable state, and the ISP can reduce costs to a relatively low level. From numerical simulations, we show the efficiency and convergence resulting from the proposed routing strategy. We also discuss the conditions under which the multihomed ISP can realize minimum cost by the proposed strategy. © 2012 IEEE.
  • Yoshiaki Taniguchi; Go Hasegawa; Hirotaka Nakano
    2012 2nd International Conference on Digital Information Processing and Communications, ICDIPC 2012 84 - 89 2012 [Refereed]
     
    We propose self-organizing transmission scheduling mechanisms for periodically gathering sensor data at a base station in wireless sensor networks. In our proposed mechanisms, sensor nodes self-organize message transmission and sleep timings. To propagate sensor data from the edge of the network to the base station in order of hop counts from the base station, we use a conventional self-organizing communication mechanism based on phase-locking in a pulse-coupled oscillator model. We propose two mechanisms to avoid collisions among sensor nodes with the same hop count, a randomization-based mechanism and a desynchronization-based mechanism based on anti-phase synchronization in the pulse-coupled oscillator model. Simulation experiments confirm that our mechanism significantly improves the data gathering ratio in comparison with the conventional mechanism. © 2012 IEEE.
  • Go Hasegawa; Shoichi Takemori; Yoshiaki Taniguchi; Hirotaka Nakano
    Proceedings of the 9th International Conference on Information Technology, ITNG 2012 71 - 76 2012 [Refereed]
     
    In general, wireless mesh networks provides wireless Internet access service to client terminals that exist in the coverage area of the network. In such networks, the coverage area size and its overlap degree have a significant effect on network performance. In order to determine the coverage area size for each node, it is important to use the location information of neighboring nodes. However, such information cannot be always obtained. In the present paper, we introduce the method to determine the coverage area size only by utilizing the distance information estimated from received signal strength. Specifically, in proposed method, each node estimates the relative locations of its neighboring nodes based on the estimated distance information. It then calculates its Voronoi area, and sets its coverage area size based on the shape of Voronoi area. We conduct simulation experiments to evaluate the performance of the proposed method in terms of total covered ratio, coverage overlap, and energy consumption. We confirm that our method can keep more than 99% of total covered ratio regardless of the node density and reduce the energy consumption more than 50% than that of existing method. © 2012 IEEE.
  • Yoshiaki Taniguchi; Akimitsu Kanzaki; Naoki Wakamiya; Takahiro Hara
    Journal of Information Processing Information Processing Society of Japan 20 (1) 167 - 176 1882-6652 2012 [Refereed]
     
    Wireless sensor network technologies have attracted a lot of attention in recent years. In this paper, we propose an energy-efficient data gathering mechanism using traveling wave and spatial interpolation for wireless sensor networks. In our proposed mechanism, sensor nodes schedule their message transmission timing in a fully-distributed manner such that they can gather sensor data over a whole wireless sensor network and transmit that data to a sink node while switching between a sleep state and an active state. In addition, each sensor node determines the redundancy of its sensor data according to received messages so that only necessary sensor data are gathered and transmitted to the sink node. Our proposed mechanism does not require additional control messages and enables both data traffic and control traffic to be drastically reduced. Through simulation experiments, we confirmed that with our proposed mechanism, the number of message transmissions can be reduced by up to 77% and the amount of transmitted data can be reduced by up to 13% compared to a conventional mechanism. © 2012 Information Processing Society of Japan.
  • Gyeongyeon Kang; Yoshiaki Taniguchi; Go Hasegawa; Hirotaka Nakano
    IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG E94D (11) 2191 - 2200 0916-8532 2011/11 [Refereed]
     
    In time division multiple access (TDMA)-based wireless mesh networks, interference relationships should be considered when time slots are assigned to links. In graph theory-based time slot assignment algorithms, the protocol interference model is widely used to determine radio interference information, although it is an inaccurate model of actual radio interference. On the other hand, the signal-to-interference-plus-noise-ratio model (SINR model) gives more accurate interference relationships but is difficult to apply to time slot assignment algorithms since the radio interference information cannot be determined before time slot assignment. In this paper, we investigate the effect of the parameters of the protocol interference model on the accuracy of the interference relationships determined using this model. Specifically, after assigning time slots to links based on the protocol interference model with various interference ratios, which is the major parameter of the protocol interference model, we compare the interference relationship among links in the protocol interference and SINR models. Through simulation experiments, we show that accuracy of the protocol interference model is improved by up to 15% by adjusting the interference ratios of the protocol interference model.
  • The implication of overlay routing on ISPs' connecting strategies
    Xun Shao; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano
    Proceedings of ITC 2011 286 - 293 2011/09 [Refereed]
  • Masakazu Murata; Yoshiaki Taniguchi; Go Hasegawa; Hirotaka Nakano
    IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG E94D (5) 1035 - 1044 0916-8532 2011/05 [Refereed]
     
    In the present paper, we propose an object tracking method called scenario-type hypothesis object tracking. In the proposed method, an indoor monitoring region is divided into multiple closed micro-cells using sensor nodes that can detect objects and their moving directions. Sensor information is accumulated in a tracking server through wireless multihop networks, and object tracking is performed at the tracking server. In order to estimate the trajectory of objects from sensor information, we introduce a novel concept of the virtual world, which consists of virtual micro-cells and virtual objects. Virtual objects are generated, transferred, and deleted in virtual micro-cells according to sensor information. In order to handle specific movements of objects in micro-cells, such as slowdown of passing objects in a narrow passageway, we also consider the generation of virtual objects according to interactions among virtual objects. In addition, virtual objects are generated when the tracking server estimates loss of sensor information in order to decrease the number of object tracking failures. Through simulations, we confirm that the ratio of successful tracking is improved by up to 29% by considering interactions among virtual objects. Furthermore, the tracking performance is improved up to 6% by considering loss of sensor information.
  • Yoshiaki Taniguchi; Tomoya Kitani; Kenji Leibnitz
    INTERNATIONAL JOURNAL OF SENSOR NETWORKS INDERSCIENCE ENTERPRISES LTD 9 (3-4) 182 - 191 1748-1279 2011 [Refereed]
     
    The performance of wireless sensor networks in terms of coverage, connectivity, lifetime and robustness is greatly influenced by the initial physical placement of the sensor nodes. In this paper we propose a novel deployment method for sensor nodes, when a large number of nodes is distributed from the air in a monitoring region that is inaccessible from the ground. In our deployment method, each sensor node is equipped with a parachute and a device to switch between its two falling behaviours (gliding and falling) in the air. After being dropped from midair, sensor nodes stochastically coordinate their falling behaviour in order to distribute themselves uniformly in the monitoring region. In addition, each sensor node exchanges messages with neighbouring nodes while being airborne and it changes its falling behaviour according to the density of the neighbouring nodes in order to reduce non-uniform areas. Through simulation evaluations, we confirm that our proposal can achieve a high uniformity in the placement of the nodes compared to a traditional airdrop method.
  • Gyeongyeon Kang; Yoshiaki Taniguchi; Go Hasegawa; Hirotaka Nakano
    PROCEEDINGS OF THE SEVENTH ADVANCED INTERNATIONAL CONFERENCE ON TELECOMMUNICATIONS (AICT 2011) IARIA XPS PRESS 26 - 31 2011 [Refereed]
     
    Radio interference should be taken into account to assign time slots to links in time division multiple access (TDMA)-based wireless mesh networks. In many graph theory-based time slot assignment algorithms, the protocol interference model is widely used to obtain radio interference information, although this model is considered to be inaccurate when compared with actual radio interference. On the other hand, the signal-to-interference-plus-noise-ratio model (SINR model) is a well-known and accurate model of radio interference. However, the SINR model requires time slot information to obtain radio interference relationship, and thus it is difficult to apply the SINR model to graph theory-based time slot assignment algorithms. In this paper, we extend the protocol interference model to represent radio interference more accurately for wireless mesh networks. To do this, we adjust the interference ratio parameter of the protocol interference model by considering SINR. We propose three methods for adjusting this parameter. Through simulation, it is shown that higher accuracy of the protocol interference model can be achieved by adjusting the interference ratio parameter for each node.
  • Shimpei Tanaka; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano
    PROCEEDINGS OF THE SEVENTH ADVANCED INTERNATIONAL CONFERENCE ON TELECOMMUNICATIONS (AICT 2011) IARIA XPS PRESS 6 - 11 2011 [Refereed]
     
    In IEEE 802.16j wireless multihop networks, transmission latency from relay nodes to a gateway node is one of the important performance metrics. The transmission latency is mainly affected by a scheduling delay at every relay node, which is determined by algorithms for assigning time slots to wireless links between relay nodes. In this paper, we propose 2 kinds of time slot assignment algorithms for upstream wireless links in IEEE 802.16j multihop networks. One of the proposed algorithms assigns time slots considering the hop count from a gateway node, and the other takes the path from the relay node to the gateway node into account. We evaluated the performance of the proposed algorithms through simulation experiments and confirmed that our algorithms can decrease the upstream latency by up to 15% compared with the existing method, without increasing the average transmission latency of the entire network.
  • Yoshiaki Taniguchi; Akimitsu Kanzaki; Naoki Wakamiya; Takahiro Hara
    2011 International Conference on Communications, Computing and Control Applications, CCCA 2011 1 - 6 2011 [Refereed]
     
    In this paper, we propose an autonomous and energy-efficient data gathering mechanism with transmission reduction for wireless sensor networks (WSNs). In our proposed mechanism, sensor nodes schedule their message transmission timing in a self-organizing manner such that they can gather sensor data over a whole WSN and transmit that data to a sink node while switching between a sleep state and an active state. In addition, each sensor node determines the redundancy of its sensor data according to overheard messages so that only necessary sensor data are gathered and transmitted to the sink node. Our proposed mechanism does not require additional control messages and enables both data traffic and control traffic to be drastically reduced. Through simulation experiments, we confirmed that the number of message transmissions can be reduced by up to 77% with our proposed mechanism compared to a conventional mechanism. © 2011 IEEE.
  • Service area deployment of IEEE 802.16j wireless relay networks: service area coverage, energy consumption, and resource utilization efficiency
    Shoichi Takemori; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano
    International Journal on Advances in Internet Technology 3 (1-2) 43 - 52 2010/09 [Refereed]
  • Rintaro Ishii; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano
    6th International Conference on Networking and Services, ICNS 2010, Includes LMPCNA 2010; INTENSIVE 2010 265 - 270 2010 [Refereed]
     
    In this paper, we propose an assignment algorithm of time slots for wireless links in IEEE 802.16 multi-hop relay networks. The main purpose is to reduce transmission latency between user stations and base stations as well as maintaining total network throughput. The proposed algorithm is based on the existing method, which aims better network throughput and guarantees certain frame length, but changes the order of time slot assignment without network throughput changed to decrease the transmission latency. It also accommodates the weighted time slot assignment, which is consistent with IEEE 802.16j specifications. Performance evaluation is conducted through both of simulation experiments and numerical calculations and confirm that the proposed algorithm can decrease the transmission latency by up to 15% on average compared with the existing random assignment algorithm, and can provide an time slot assignment with smaller transmission latency in shorter calculation time. © 2010 IEEE.
  • Masakazu Murata; Yoshiaki Taniguchi; Go Hasegawa; Hirotaka Nakano
    6th International Conference on Networking and Services, ICNS 2010, Includes LMPCNA 2010; INTENSIVE 2010 200 - 205 2010 [Refereed]
     
    In recent years, wireless communication technologies such as ZigBee have been developed. By constructing a wireless sensor network from infrared sensors with those wireless technologies, it is possible to track moving objects in a wide monitoring region. In this paper, we propose an object tracking method by dividing a wide monitoring region into small multiple regions called "micro cells". Pair of infrared sensors is placed at borders among micro cells to detect objects and their movement direction, and sensor information are gathered to a tracking server through wireless or wired networks. In our proposed method, the tracking server maintains virtual micro cells and virtual objects which indicate a variety of hypotheses of object trajectories. A virtual object is generated, moved, and removed in virtual micro cells appropriately according to sensor information and interactions among virtual objects, so that the tracking server keeps a number of object trajectory hypotheses for each object. When an object departs from the monitoring region, the virtual object with highest likelihood is selected as the estimated object trajectory. Through preliminary simulation evaluations, we confirm that tracking accuracy is improved up to 1.94 times higher by making virtual objects appropriately. © 2010 IEEE.
  • Masakazu Murata; Yoshiaki Taniguchi; Go Hasegawa; Hirotaka Nakano
    Proceedings of SeNAmI 2009 2009/12 [Refereed]
  • An airdrop deployment method for sensor nodes with coordinated gliding and falling
    Yoshiaki Taniguchi; Tomoya Kitani; Kenji Leibnitz
    Proceedings of ESSA 2009 41 - 48 2009/04 [Refereed]
  • Shoichi Takemori; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano
    3rd International Conference on Mobile Ubiquitous Computing, Systems, Services, and Technologies, UBICOMM 2009 163 - 168 2009 [Refereed]
     
    In wireless mesh networks based on IEEE 802.16 WiMAX, each mesh node has its own service area that provides wireless Internet access service to client terminals. The network performance degrades due to radio interference when multiple service areas overlap with each other. To avoid this problem, information of the exact location and size of the service area of neighboring mesh nodes is useful for each mesh node to determine its own service area size. However, the availability of the information depends on the topology construction procedure. In this paper, we discuss a method to determine the size of service areas using the information obtained in topology construction based on IEEE 802.16 WiMAX. Specifically, each mesh node estimates the distance to the nearest neighboring node, and sets the service area size based on this distance. Through performance evaluation, we confirm that our method can increase the size of a single-covered area by an average of 32% compared with the existing method, which is the constant service radius, and can reduce the maximum number of overlapped service areas by approximately 50%.© 2009 IEEE.
  • Yoshiaki Taniguchi; Naoki Wakamiya; Masayuki Murata
    Journal of Networks 3 (8) 16 - 25 1796-2056 2008 [Refereed]
     
    By applying a proxy mechanism widely used in WWW systems to video streaming systems, low-delay and high-quality video distribution can be accomplished without imposing extra load on the system. The video streaming system proposed in this paper consists of a video server and multiple proxy servers. In our mechanism, proxies communicate with each other and retrieve missing video data from an appropriate server by taking into account transfer delay and offerable quality. In addition, the quality of cached video data is adapted appropriately at a proxy to cope with the client-to-client heterogeneity in terms of the available bandwidth, end-system performance, and user preferences on the perceived video quality. Through simulation experiments, it is shown that our proposed mechanism can provide users with low-delay and high-quality video streaming services. Furthermore, to verify our mechanism, we implement a real system for MPEG-4 video streaming services and show that our proxy caching system can provide users with a continuous video distribution under dynamically changing network conditions. © 2008 Academy Publisher.
  • Yoshiaki Taniguchi; Naoki Wakamiya; Masayuki Murata; Takashi Fukushima
    Proceedings of New Technologies, Mobility and Security Conference and Workshops, NTMS 2008 52 - 56 2008 [Refereed]
     
    In wireless sensor networks (WSNs), the frequency of sensing and data gathering depends on application requirements and surrounding conditions. In this paper, we propose a data gathering scheme adaptive to sensing requirements for WSNs composed of sensor nodes with multiple sensing capabilities. To accomplish self-organizing control, we adopt the response threshold model for adaptive sensing task engagement and the pulse-coupled oscillator model for energy-efficient transmission and sleep scheduling. Through preliminary simulation experiments, we confirm that autonomous and energy-efficient data gathering can be accomplished satisfying dynamically changing sensing requirements. © 2008 ESRGroups.
  • A traveling wave based communication mechanism for wireless sensor networks
    Yoshiaki Taniguchi; Naoki Wakamiya; Masayuki Murata
    Journal of Networks 2 (5) 24 - 32 2007/09 [Refereed]
  • Yoshiaki Taniguchi; Naoki Wakamiya; Masayuki Murata
    WSEAS Transactions on Communications 6 (10) 824 - 832 1109-2742 2007 [Refereed]
     
    In this paper, we propose, design, implement, and evaluate a proxy caching system for MPEG-4 video streaming services for heterogeneous users. In our system, a video stream is divided into blocks for efficient use of the cache buffer and the bandwidth. A proxy retrieves a block from a server, deposits it in its local cache buffer, and provides a requesting client with the block in time. It maintains the cache with limited capacity by replacing unnecessary, cached blocks with a newly retrieved one. It also prefetches video blocks that are expected to be required in the near future. In addition, the proxy server adjusts the quality of block appropriately, because clients are heterogeneous, in terms of the available bandwidth, end-system performance, and so on. Through evaluations, we proved that our proxy caching system could provide users with a continuous and high-quality video streaming service in a heterogeneous environment.
  • Yoshiaki Taniguchi; Naoki Wakamiya; Masayuki Murata
    SENSYS'07: PROCEEDINGS OF THE 5TH ACM CONFERENCE ON EMBEDDED NETWORKED SENSOR SYSTEMS ASSOC COMPUTING MACHINERY 399 - 400 2007 [Refereed]
     
    We have proposed a simple and energy-efficient communication mechanism which can organize a variety of communication depending on dynamically changing application requirements. In this demonstration, we show that our mechanism can gather or diffuse information in accordance with application requirements in a dynamic wireless sensor network.
  • Yoshiaki Taniguchi; Naoki Wakamiya; Masayuki Murata
    2007 IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks, WOWMOM 1 - 6 2007 [Refereed]
     
    In this paper, we propose and evaluate a self-organizing communication mechanism for wireless sensor networks where a large number of sensor nodes are deployed. To accomplish application-oriented periodic communication without any centralized controls, we adopt traveling wave phenomena of a pulse-coupled oscillator model by regarding sensor nodes as oscillators and emission of radio signals as firing. Through simulation experiments, we confirm that our mechanism delivers sensor information to / from a designated node in a more energy-efficient manner than other method, although it takes time to generate a traveling wave. In addition, we implement our mechanism using MOTE MICAz and verify its practicality. © 2007 IEEE.
  • Yoshiaki Taniguchi; Naoki Wakamiya; Masayuki Murata
    EIGHTH INTERNATIONAL SYMPOSIUM ON AUTONOMOUS DECENTRALIZED SYSTEMS, PROCEEDINGS IEEE COMPUTER SOC 562 - + 2007 [Refereed]
     
    In this paper, we propose a self-organizing communication mechanism for a wireless sensor network where a large number of sensor nodes are deployed. To accomplish application-oriented periodic communication without any centralized controls, we adopt traveling wave phenomena of a pulse-coupled oscillator model by regarding sensor nodes as oscillators and the emission of radio signals as firing. We first investigat conditions of a phase-response curve to attain wave-formed firing patterns regardless of the initial phase of oscillators. We adopte the derived phase-response curve to accomplish the desired form of message propagation through local and mutual interactions among neighboring sensor nodes. Through simulation experiments, we confirm that our mechanism can gather or diffuse information effectively in accordance with the application's requirements.
  • Yoshiaki Taniguchi; Naoki Wakamiya; Masayuki Murata
    APSITT 2005: 6th Asia-Pacific Symposium on Information and Telecommunication Technologies, Proceedings IEEE 299 - 304 2005 [Refereed]
     
    The development of low-cost microsensor equipment having the capability of wireless communications has caused sensor network technology to attract the attention of many researchers and developers. In this paper, we propose a fully-distributed and self-organizing data gathering scheme for a network where a large number of sensor nodes are deployed. To accomplish the periodic data gathering without centralized controls, we adopt the pulse-coupled oscillator model based on biological mutual synchronization such as that observed in flashing fireflies. By adjusting parameters and functions in the model according to application's requirements and conditions surrounding a sensor network, we can control the frequency, the form, and the direction of information propagation which is observed as a wave. In this paper, we show how to organize traveling waves in the model and how to adapt the model to data gathering in sensor networks.
  • Y Taniguchi; N Wakamiya; M Murata
    INTERNET MULTIMEDIA MANAGEMENT SYSTEMS V SPIE-INT SOC OPTICAL ENGINEERING 5601 288 - 299 0277-786X 2004 [Refereed]
     
    The proxy mechanism widely used in WWW systems offers low-delay and scalable delivery of data by means of a "proxy server". By applying proxy mechanism to video streaming systems, high-quality and low-delay video distribution can be accomplished without imposing extra load on the system. We have proposed proxy caching mechanisms to accomplish the high-quality and highly-interactive video streaming services. In our proposed mechanisms, proxies communicate with each other, retrieve a missing video data from an appropriate server by taking into account transfer delay and offerable quality. In addition, the quality of cached video data can be adapted appropriately in the proxy to cope with the client-to-client heterogeneity, in terms of the available bandwidth, end-system performance, and user preferences on the perceived video quality. In this paper, to verify the practicality of our mechanisms, we implemented them on a real system for MPEG-4 video streaming services, and conducted experiments. Through evaluations, it was shown that our proxy caching system can provide users with a continuous and high-quality video distribution in accordance with network condition.
  • Implementation and evaluation of proxy caching system for MPEG-4 video streaming with quality adjustment mechanism
    Yoshiaki Taniguchi; Atsushi Ueoka; Naoki Wakamiya; Masayuki Murata; Fumio Noda
    Proceedings of the 5th AEARU Workshop on Web Technology 27 - 34 2003/10 [Refereed]
  • M Sasabe; Y Taniguchi; N Wakamiya; M Murata; H Miyahara
    IEICE TRANSACTIONS ON COMMUNICATIONS IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG E86B (6) 1849 - 1858 0916-8516 2003/06 [Refereed]
     
    The proxy mechanism widely used in WWW systems offers low-delay data delivery by means of "proxy server." By applying proxy mechanisms to video streaming system, we expect that high-quality and low-delay video distribution can be accomplished without introducing extra load on the system, in addition, it is effective to adapt the quality of cached video data appropriately in the proxy if user requests are diverse due to heterogeneity in terms of the available bandwidth, end-system performance, and user's preferences on the perceived video quality. In this paper, we propose proxy caching mechanisms to accomplish high-quality and low-delay video streaming services. In our proposed system, a video stream is divided into blocks for efficient use of cache buffer. A proxy cache server is assumed to be able to adjust the quality of cached or retrieved video blocks to requests through video filters. We evaluate our proposed mechanisms in terms of the required buffer size, the play-out delay and the video quality through simulation experiments. Furthermore, to verify the practicality of our mechanisms, we implement our proposed mechanisms on a real system and conducted experiments. Through evaluations from several performance aspects, it is shown that our proposed mechanisms can provide users with a low-latency and high-quality video streaming service in a heterogeneous environment.
  • Implementation and evaluation of proxy caching mechanisms with video quality adjustment
    Masahiro Sasabe; Yoshiaki Taniguchi; Naoki Wakamiya; Masayuki Murata; Hideo Miyahara
    Proceedings of ITC-CSCC 2002 121 - 124 2002/07 [Refereed]

MISC

  • 初学者向けCTF Slackアプリの開発と評価
    山下達也; 谷口義明  電子情報通信学会関西支部 第28回学生会研究発表講演会論文集  2024/03
  • A Basic Study of Human Passage Detection System Using Bluetooth Direction Finding Function in Facilities
    Ren Imao; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of IPSJ IOTS 2023  117  -118  2023/12
  • 近畿大学情報学部KDIXにおけるセキュリティ人材育成の取り組み
    谷口義明; 福田洋治; 吉原和明; 広永美喜也; 水谷后宏; 柏崎礼生; 溝渕昭二; 森山真光; 毛利公美; 井口信和  令和5年電気関係学会関西連合大会講演集  212  -213  2023/11  [Invited]
  • 環境変動下における自己組織型ノイズ無線通信号の送信手法の評価
    大山拓海; 谷口義明  令和5年度電気・情報関係学会北海道支部連合大会講演集  2023/10
  • LEDパネルを用いたBLEアドバタイジングパケットの可視化システムの検討
    秋山周平; 佐伯嶺治; 谷口義明  令和5年度電気・情報関係学会北海道支部連合大会講演集  2023/10
  • 無線LAN環境におけるチャネル状態情報を用いた機器位置の認識に関する検討
    泉本侑哉; 馬渕大泰; 谷口義明  2023年度情報処理学会関西支部支部大会講演集  2023/09
  • スマートフォンによる受信電波強度を利用したBLE機器の把握支援システムの開発
    稲葉亮太; 谷口義明  2023年度情報処理学会関西支部支部大会講演集  2023/09
  • 施設内におけるBluetooth方向探知機能を用いた位置推定システムの基礎検討
    今尾廉; 谷口義明; 井口信和  2023年度情報処理学会関西支部支部大会講演集  2023/09
  • 人間が発する特徴音による合成音声判別システムの検討
    塗木優也; 谷口義明  2023年度電気・情報関係学会九州支部連合大会予稿集  2023/09
  • ダンス動画から曲情報を検索するシステムの開発
    田中努; 谷口義明  電子情報通信学会関西支部 第27回学生会研究発表講演会論文集  2023/03
  • Development of an application to check attendance status using BLE signals from smartphones
    Shomu Okujima; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of the 85th National Convention of IPSJ  2023/03
  • Development of Wireless LAN Communication Performance Map Display System for Efficient Collection of Measured Values
    Taketo Katayama; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of the 85th National Convention of IPSJ  2023/03
  • IoT Device Grasp System Based on Observation of BLE Packets
    Yutaro Kobayashi; Yoshiaki Taniguchi  Proceedings of the 85th National Convention of IPSJ  2023/03
  • 無線LAN環境のセキュリティ診断システムの開発
    泉本侑哉; 谷口義明  2022年度情報処理学会関西支部支部大会講演集  2022/09
  • 養殖魚モニタリング環境下における残余電力を考慮した情報転送方式の検討
    小村巧; 谷口義明  2022年度情報処理学会関西支部支部大会講演集  2022/09
  • MACアドレスがランダム化されたBLEパケットからの同一機器推定手法の改良と評価
    秋山周平; 谷口義明  2022年度情報処理学会関西支部支部大会講演集  2022/09
  • 大学内Slackワークスペースの運用管理補助エージェントの開発
    山下和真; 坂田志旺; 谷口義明  2022年度情報処理学会関西支部支部大会講演集  2022/09
  • 施設内におけるBLEを用いた混雑度推定システムの評価
    今尾廉; 谷口義明; 井口信和  2022年度情報処理学会関西支部支部大会講演集  2022/09
  • 失敗体験から学習する無線 LAN のセキュリティリスク学習システムの開発
    塩田晃平; 谷口義明; 井口信和  2022年度情報処理学会関西支部支部大会講演集  2022/09
  • Implementation of a network construction exercise system for cooperative exercises in mixed reality space
    Kenjiro Morimoto; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of the 47th Annual Conference of JSiSE  2022/08
  • Estimating same device by BLE packets from moving devices with randomized MAC addresses
    Shuhei Akiyama; Yoshiaki Taniguchi  Proceedings of DICOMO 2022  2022/07
  • Development of a narrow congestion visualization system for avoiding congestion using Unity
    Ren Imao; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of the 84th National Convention of IPSJ  2022/03
  • Development of an attendance management system using QR codes
    Yukihiro Matsumoto; Yoshiaki Taniguchi; Youji Ochi; Nobukazu Iguchi  Proceedings of the 84th National Convention of IPSJ  2022/03
  • Development of a Management Support System for IoT Devices using Channel State Information
    Ryota Inaba; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of the 84th National Convention of IPSJ  2022/03
  • Hands-on system for secure programming on web application security with an attacker’s perspective
    Kazuri Kishimoto; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of the 84th National Convention of IPSJ  2022/03
  • Development of a Security Risk Learning System for Wireless LANs Based on Goal- Based Scenario Theory
    Kohei Shiota; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of the 84th National Convention of IPSJ  2022/03
  • Development of a Network Exercise System for Cooperative Exercises using Mixed Reality
    Kenjiro Morimoto; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of the 84th National Convention of IPSJ  2022/03
  • A self-organizing method for transmitting noise signals to make eavesdropping difficult in wireless networks
    Takumi Oyama; Yoshiaki Taniguchi  Proceedings of the 84th National Convention of IPSJ  2022/03
  • A Method for Estimating Identical Devices from BLE Advertising Packets of Moving Devices
    Shuhei Akiyama; Yoshiaki Taniguchi  Proceedings of the 84th National Convention of IPSJ  2022/03
  • Improvement and evaluation of a visible light communication module for fish farm monitoring
    Kohei Kakehi; Yoshiaki Taniguchi  Proceedings of the 84th National Convention of IPSJ  2022/03
  • A Study of a Network Exercise System for Cooperative Exercises using Mixed Reality
    Kenjiro Morimoto; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of IOTS 2021  73  -74  2021/11
  • A study on self-organizing noise radio signal transmission method to make eavesdropping difficult in single-hop wireless networks
    Takumi Oyama; Satoru Yamato; Yoshiaki Taniguchi  Proceedings of 2021 IPSJ Kansai Conference  1  -6  2021/09
  • An identification method for BLE devices with randomized MAC addresses
    Shuhei Akiyama; Ryoya Morimoto; Yoshiaki Taniguchi  Proceedings of 2021 IPSJ Kansai Conference  1  -7  2021/09
  • A Study of a Network Exercise System using Mixed Reality
    Kenjiro Morimoto; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of 2021 IPSJ Kansai Conference  1  -2  2021/09
  • Aiming to raise security awareness among wireless LAN users Development of a Wireless LAN Security Risk Experiential Learning System
    Kohei Shiota; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of 2021 IPSJ Kansai Conference  1  -2  2021/09
  • Implementation and evaluation of a monitoring system for estimating congestion on university campuses
    Yutaro Kobayashi; Keigo Hashimoto; Yoshiaki Taniguchi; Youji Ochi; Nobukazu Iguchi  Proceedings of 2021 IPSJ Kansai Conference  1  -7  2021/09
  • Design and evaluation of a visible light communication module for fish farm monitoring
    Kohei Kakehi; Hiroki Mizushima; Kiyohiro Imanaka; Yoshiaki Taniguchi  Proceedings of 2021 IPSJ Kansai Conference  1  -6  2021/09
  • Evaluation of data forwarding methods for fish farm monitoring system with energy harvesting
    Takumi Komura; Yoshiaki Taniguchi  Proceedings of 2021 IPSJ Kansai Conference  1  -7  2021/09
  • Implementation and evaluation of a system for monitoring social distancing using microcomputer modules on university campuses
    Yutaro Kobayashi; Yoshiaki Taniguchi; Youji Ochi; Nobukazu Iguchi  Proceedings of the 83rd National Convention of IPSJ  3-  217  -218  2021/03
  • A study on fish farm monitoring system considering energy harvesting
    Takumi Komura; Yoshiaki Taniguchi  Proceedings of the 83rd National Convention of IPSJ  3-  215  -216  2021/03
  • Development Cable Length Measurement System using Mixed Reality for Server Rooms
    Kenjiro Morimoto; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of the 83rd National Convention of IPSJ  3-  73  -74  2021/03
  • Development of a Management and Automatic Password Change System for IoT Devices with Weak Passwords
    Kohei Shiota; Yuto Egawa; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of the 83rd National Convention of IPSJ  3-  449  -450  2021/03
  • A monitoring system using BLE advertising packets for estimating congestion degree on university campuses
    Tomoki Mukaida; Yoshiaki Taniguchi; Youji Ochi; Nobukazu Iguchi  IEICE Technical Report  120-  (315)  63  -68  2021/01
  • A navigation function based on RSSI of wireless frames in an IoT device list visualization system
    Yuto Egawa; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of IOTS 2020  56  -62  2020/12  [Refereed]
  • A function for navigating to device location in an IoT device visualization system
    Yuto Egawa; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of 2020 IPSJ Kansai Conference  1  -4  2020/09
  • Person Recognition Using Wi-Fi Channel State Information With Multiple Devices
    Taishin Mabuchi; Yoshiaki Taniguchi; Kimiaki Shirahama  Proceedings of 2020 IPSJ Kansai Conference  1  -5  2020/09
  • A System for Monitoring Social Distance using Wireless Devices in University Campus
    Yutaro Kobayashi; Yoshiaki Taniguchi; Masahiro Tada; Hitoshi Habe; Youji Ochi; Shoji Mizobuchi; Hisashi Handa; Nobukazu Iguchi  Proceedings of 2020 IPSJ Kansai Conference  1  -7  2020/09
  • 動画を用いた生簀内クロマグロ稚魚の尾数推定
    覚野陽生; 阿部孝司; 波部斉; 谷口義明; 井口信和  電子情報通信学会関西支部 第25回学生会研究発表講演会論文集  2020/03
  • 映像を用いた生簀内クロマグロの尾数計測
    金田彩花; 阿部孝司; 波部斉; 谷口義明; 井口信和; 阿部悟; 鳥澤眞介; 高木力  電子情報通信学会関西支部 第25回学生会研究発表講演会論文集  2020/03
  • A study on estimation of person using Wi-Fi channel state information
    Taishin Mabuchi; Yoshiaki Taniguchi; Kimiaki Shirahama  Proceedings of the 82nd National Convention of IPSJ  3-  285  -286  2020/03
  • A function to support association between a displayed address and an actual device in an IoT device list visualization system
    Yuto Egawa; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of the 82nd National Convention of IPSJ  3-  289  -290  2020/03
  • 任意のBLE機器を水中で使用するための音響通信変換モジュールの開発
    増田裕斗; 谷口義明; 波部斉; 阿部孝司; 井口信和  電子情報通信学会関西支部 第25回学生会研究発表講演会論文集  2020/03
  • 通信距離に制限のある養殖魚モニタリング環境下における情報転送方式の評価
    小村巧; 首藤誠陽; 谷口義明  電子情報通信学会関西支部 第25回学生会研究発表講演会論文集  2020/03
  • A system for automatically switching audio communication between Bluetooth earphone and line-of-sight device using a smart glass
    Yu Konishi; Yoshiaki Taniguchi  Proceedings of the 2019 Chugoku-branch Joint Convention of Institute of Electrical and Information Engineers  1  -2  2019/10
  • Hiroto Masuda; Yoshiaki Taniguchi; Hitoshi Habe; Koji Abe; Nobukazu Iguchi  Proceedings of 2019 IPSJ Kansai Conference  2019-  1  -4  2019/09
  • A study on function for grasping location of device
    Yuto Egawa; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of 2019 IPSJ Kansai Conference  1  -5  2019/09
  • IoT Device List Display System Based on Captured Frames in Wireless LAN
    Yuto Egawa; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of the 81st National Convention of IPSJ  3-  111  -112  2019/03
  • 田中勝; 阿部孝司; 波部斉; 谷口義明; 井口信和  映像情報メディア学会冬季大会講演予稿集(CD-ROM)  2019-  2019
  • A system for supporting management and operation of overlay OpenFlow network by visualization of topology and touch operation
    Hiroki Fujita; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of IOTS 2018  40  -40  2018/12
  • 電磁シールドを用いたIoT機器セキュリティ検証システムの検討
    浮田博揮; 谷口義明; 井口信和  平成30年度電気関係学会関西連合大会講演集  325  -326  2018/12
  • Masaru Tanaka; Koji Abe; Hitoshi Habe; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of annual conference of Electronics, Information and Systems Society, IEE of Japan  2018-  1340  -1341  2018/09
  • A study on counting fish using multiple sonars
    Kansei Oki; Yoshiaki Taniguchi  Proceedings of the 80th National Convention of IPSJ  3-  387  -388  2018/03
  • Proposal of Wireless LAN Router Configuration Verification System Using Electromagnetic Shield
    Hiroki Ukita; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of the 80th National Convention of IPSJ  3-  195  -196  2018/03
  • 養殖魚モニタリング環境におけるDTN ルーティング手法を用いた情報収集の基礎評価
    首藤誠陽; 石田晃一; 谷口義明  平成29年度電気関係学会関西連合大会講演集  309  -310  2017/11
  • 無線LANルータのセキュリティ検証システムの提案
    浮田博揮; 谷口義明; 井口信和  平成29年度電気関係学会関西連合大会講演集  307  -308  2017/11
  • A study on the investigation of noise signal transmission for wireless network security
    Takaaki Matsushita; Yoshiaki Taniguchi  Proceedings of the 2017 Joint Conference of Electrical, Electronics and Information Engineers in Kyushu  221  -222  2017/09
  • Hiro Tabata; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of 2017 IPSJ Kansai Conference  1  -4  2017/09
  • Performance evaluation of automatic assignment making function on ip network practice system
    Takaya Karasuno; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of the 42nd Annual Conference of JSiSE  361  -362  2017/08
  • Evaluation of a method for determining transmission timing for data gathering in fish farm monitoring environment
    Koichi Ishida; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of the 79th National Convention of IPSJ  241  -242  2017/03
  • Development of a practice supporting system for network server software configuration using cloud computing
    Hiroki Ukita; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of JSiSE Student Conference 2016  99  -100  2017/02
  • Performance Evaluation of Automatic Assignment Making Function on IP Network Practice System
    Takaya Karasuno; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of JSiSE Student Conference 2016  101  -102  2017/02
  • 画像による水の濁度推定
    寺澤佑也; 阿部孝司; 波部斉; 谷口義明; 井口信和  電子情報通信学会関西支部 第22回学生会研究発表講演会論文集  2017/02
  • A system for supporting migration to hop-by-hop/overlay OpenFlow network
    Keita Nomura; Yoshiaki Taniguchi; Nobukazu Iguchi; Kenzi Watanabe  Proceedings of IOTS 2016  75  -82  2016/12  [Refereed]
  • A proposal of a cooperative learning agent on hands-on IP network practice system
    Takaya Karasuno; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of IOTS 2016  74  2016/12
  • 石田理佐子; 石田晃一; 谷口義明; 波部斉; 阿部孝司; 井口信和  平成28年度電気関係学会関西連合大会講演集  2016-  230  -231  2016/11
  • Daisuke Kishida; Koji Abe; Hitoshi Habe; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of FAN 2016  26th-  108  -111  2016/10
  • 清水涼太; 阿部孝司; 波部斉; 谷口義明; 井口信和  Record of Joint Conference of Electrical and Electronics Engineers in Kyushu  2016-  418  -418  2016/09
  • Koichi Ishida; Yoshiaki Taniguchi; Nobukazi Iguchi  Proceedings of 2016 IPSJ Kansai Conference  1  -5  2016/09
  • Ryo Hayakawa; Yoshiaki Taniguchi; Shoji Mizobuchi; Nobukazu Iguchi  Proceedings of 2016 IPSJ Kansai Conference  1  -5  2016/09
  • Tomohiko Yatsuzuka; Yoshiaki Taniguchi; Hitoshi Habe; Koji Abe; Nobukazu Iguchi  Proceedings of 2016 IPSJ Kansai Conference  1  -5  2016/09
  • Development of Learning Support System for Dynamic Routing Enabling to Visualize Convergence
    Takaya Karasuno; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of JSiSE Student Conference 2015  63  -64  2016/03
  • Study of Automatic Scoring System Intended for Problem Practice for Hands-on IP Network Practice
    Ryo Hayakawa; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of JSiSE Student Conference 2015  61  -62  2016/03
  • 養殖魚モニタリング環境下での水中無線通信手法の評価
    石田晃一; 谷口義明  電子情報通信学会関西支部 第21回学生会研究発表講演会論文集  49  2016/03
  • Counting people using existing WiFi access point in indoor environment
    Takuya Yoshida; Yoshiaki Taniguchi  Proceedings of the 78th National Convention of IPSJ  3-  415  -416  2016/03
  • Learning support system for dynamic routing enabling to reproduce OSPF network
    Takaya Karasuno; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of the 78th National Convention of IPSJ  4-  817  -818  2016/03
  • Consideration of a system for supporting migration to overlay OpenFlow network
    Keita Nomura; Yoshiaki Taniguchi; Nobukazu Iguchi; Kenzi Watanabe  Proceedings of IOTS 2015  44  -49  2015/11  [Refereed]
  • Implementation and evaluation of attacker agent in virtual machine-based network security learning system
    Kazuki Fukuyama; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of IOTS 2015  73  -78  2015/11  [Refereed]
  • Takuya Yoshida; Yoshiaki Taniguchi  Proceedings of 2015 IPSJ Kansai Conference  1  -8  2015/09
  • Daisuke Kishida; Koji Abe; Hitoshi Habe; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of annual conference of Electronics, Information and Systems Society, IEE of Japan  2015-  1293  -1296  2015/08
  • Development of a system enabling to reflect settings of router to OpenFlow network
    Keita Nomura; Hiroaki Tsutsumi; Yoshiaki Taniguchi; Nobukazu Iguchi  Proceedings of the 77th National Convention of IPSJ  3-  359  -360  2015/03
  • 無線ネットワークにおける自己組織型重み付きスケジューリング
    井上紘兵; 谷口義明  電子情報通信学会関西支部 第20回学生会研究発表講演会論文集  34  2015/03
  • TDMA型無線網におけるリンクスケジューリングのための電波干渉推定手法の評価
    伊礼泊正敏; 谷口義明  電子情報通信学会関西支部 第20回学生会研究発表講演会論文集  35  2015/03
  • 超音波距離センサを用いた自転車安全運転支援システムの一検討
    西井広大; 谷口義明  電子情報通信学会関西支部 第20回学生会研究発表講演会論文集  73  2015/03
  • Development of OpenFlow network monitoring system
    Hiroaki Tsutsumi; Yoshiaki Taniguchi; Nobukazu Iguchi; Kenzi Watanabe  Proceedings of IOTS 2014  23  -30  2014/12  [Refereed]
  • A consideration of attacker agent in virtual machine-based system to support network security learning
    Kazuki Fukuyama; Yoshiaki Taniguchi; Nobukazu Iguchi  IEICE Technical Report  114-  (305)  37  -42  2014/11
  • Shuto Fujii; Yoshiaki Taniguchi; Go Hasegawa; Morito Matsuoka  IEICE Technical Report  113-  (472)  67  -72  2014/03
  • Koji Suganuma; Takaaki Deguchi; Yoshiaki Taniguchi; Go Hasegawa; Yutaka Nakamura; Norimichi Ukita; Kazuhiro Matsuda; Morito Matsuoka  IEICE Technical Report  113-  (472)  185  -190  2014/03
  • Takaaki Deguchi; Yoshiaki Taniguchi; Go Hasegawa; Yutaka Nakamura; Norimichi Ukita; Kazuhiro Matsuda; Morito Matsuoka  IEICE Technical Report  113-  (472)  191  -196  2014/03
  • Kohei Higo; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano; Morito Matsuoka  IEICE Technical Report  113-  (472)  231  -236  2014/03
  • Shoichi Takagi; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano; Morito Matsuoka  IEICE Technical Report  113-  (472)  237  -242  2014/03
  • Counting pedestrians passing through a line in crowded scenes by extracting optical flows
    Miki Mizushima; Yoshiaki Taniguchi; Go Hasegawa; Hirotaka Nakano; Morito Matsuoka  Reports of the 269th Technical Conference of IIEEJ  133  -139  2014/02
  • Yuuki Tsubouchi; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano; Morito Matsuoka  IEICE Technical Report  113-  (244)  67  -72  2013/10
  • Shuto Fujii; Yoshiaki Taniguchi; Go Hasegawa; Hirotaka Nakano; Morito Matsuoka  IEICE Technical Report  113-  (132)  183  -188  2013/07
  • Pedestrian counting based on the number of salient points considering effect of occlusions in video sequences
    Kazuyuki Hashimoto; Yoshiaki Taniguchi; Go Hasegawa; Hirotaka Nakano  Proceedings of Media Computing Conference 2013  1  -5  2013/06
  • Tomoya Kitayama; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano  IEICE Technical Report  112-  (464)  13  -18  2013/03
  • Ryosuke Mine; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano  IEICE Technical Report  112-  (464)  343  -348  2013/03
  • Xun Shao; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano  IEICE Technical Report  112-  (492)  13  -18  2013/03
  • Takuya Tanoue; Yoshiaki Taniguchi; Go Hasegawa; Hirotaka Nakano  Reports of the 264th Technical Conference of IIEEJ  264-  37  -44  2013/02
  • Tomoya Kitayama; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano  IEICE Technical Report  112-  (231)  47  -52  2012/10
  • Shoichi Takagi; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano  IEICE Technical Report  112-  (231)  53  -58  2012/10
  • Ryosuke Mine; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano  IEICE Technical Report  112-  (218)  37  -42  2012/09
  • Xun Shao; 長谷川 剛; 谷口 義明; 中野 博隆  研究報告インターネットと運用技術（IOT）  2012-  (6)  1  -6  2012/05
  • Xun Shao; 長谷川 剛; 谷口 義明; 中野 博隆  研究報告コンピュータセキュリティ（CSEC）  2012-  (6)  1  -6  2012/05
  • Xun Shao; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano  IEICE Technical Report  112-  (22)  121  -126  2012/05
  • Yoshiaki Taniguchi; Go Hasegawa; Hirotaka Nakano  IEICE Technical Report  112-  (30)  1  -6  2012/05
  • Shizuka Fujisawa; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano  Reports of the 260th Technical Conference of IIEEJ  260-  123  -129  2012/03
  • Takafumi Shigefuji; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano  IEICE Technical Report  111-  (468)  345  -350  2012/03
  • Yuuki Ise; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano  IEICE Technical Report  111-  (469)  157  -162  2012/03
  • Shuto Fujii; Yoshiaki Taniguchi; Go Hasegawa; Hirotaka Nakano  2012 INTERNATIONAL CONFERENCE ON COMPUTER SYSTEMS AND INDUSTRIAL INFORMATICS (ICCSII)  112-  (111)  13  -18  2012
  • Yoshiaki Taniguchi; Akimitsu Kanzaki; Naoki Wakamiya; Takahiro Hara  情報処理学会論文誌  52-  (12)  10p  2011/12
  • Performance evaluation of IEEE 802.16j relay networks considering radio wave blocking by obstacles
    Yuuki Ise; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano  Proceedings of the 9th IEICE QoS Workshop  1  -2  2011/11
  • Real-time people counting using optical flow clustering
    Shizuka Fujisawa; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano  Proceedings of the 9th IEICE QoS Workshop  1  -2  2011/11
  • Tomoya Kitayama; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano  IEICE Technical Report  111-  (67)  13  -18  2011/05
  • Xun Shao; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano  IEICE Technical Report  111-  (43)  13  -18  2011/05
  • Kentaro Imajo; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano  IEICE Technical Report  110-  (455)  93  -98  2011/03
  • Gyeongyeon Kang; Yoshiaki Taniguchi; Go Hasegawa; Hirotaka Nakano  IEICE Technical Report  110-  (448)  145  -150  2011/03
  • Shoichi Takemori; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano  IEICE Technical Report  110-  (448)  187  -192  2011/03
  • Shimpei Tanaka; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano  IEICE Technical Report  110-  (448)  181  -186  2011/03
  • Yoshiaki Taniguchi; Akimitsu Kanzaki; Naoki Wakamiya; Takahiro Hara  IPSJ SIG Technical Report  2011-DPS-146-  (39)  1  -7  2011/03
  • Takafumi Shigefuji; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano  Proceedings of the 8th IEICE QoS Workshop  1  -2  2010/11
  • Shimpei Tanaka; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano  IEICE Technical Report  110-  (240)  49  -54  2010/10
  • Gyeongyeon Kang; Yoshiaki Taniguchi; Go Hasegawa; Hirotaka Nakano  IEICE Technical Report  110-  (240)  55  -60  2010/10
  • Yuuki Ise; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano  IEICE Technical Report  110-  (191)  61  -66  2010/09
  • Shoichi Takemori; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano  IEICE Technical Report  110-  (18)  37  -42  2010/04
  • Erika Ashikaga; Yoshiaki Taniguchi; Go Hasegawa; Hirotaka Nakano  Reports of the 250th Technical Conference of IIEEJ  129  -136  2010/03
  • Masakazu Murata; Yoshiaki Taniguchi; Go Hasegawa; Hirotaka Nakano  IEICE Technical Report  109-  (449)  157  -162  2010/03
  • Rintaro Ishii; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano  IEICE Technical Report  109-  (449)  199  -204  2010/03
  • Rintaro Ishii; Go Hasegawa; Yoshiaki Taniguchi; Hirotaka Nakano  IEICE Technical Report  109-  (228)  65  -70  2009/11
  • Yoshiaki Taniguchi; Yukihiro Gouda; Go Hasegawa; Hirotaka Nakano  IEICE Technical Report  109-  (276)  17  -22  2009/11
  • Masakazu Murata; Yoshiaki Taniguchi; Go Hasegawa; Hirotaka Nakano  IEICE Technical Report  109-  (228)  59  -64  2009/10
  • Tomoya Kitani; Yoshiaki Taniguchi  IEICE Technical Report  108-  (457)  499  -504  2009/03
  • Yoshiaki Taniguchi; Naoki Wakamiya; Masayuki Murata; Takashi Fukushima  IEICE Technical Report  108-  (138)  105  -110  2008/07
  • Yoshiaki Taniguchi; Naoki Wakamiya; Masayuki Murata  IEICE Technical Report  107-  (146)  1  -6  2007/07
  • TANIGUCHI Yoshiaki; WAKAMIYA Naoki; MURATA Masayuki  IEICE technical report  106-  (167)  17  -20  2006/07
  • TANIGUCHI Yoshiaki; WAKAMIYA Naoki; MURATA Masayuki  IEICE technical report. Information networks  103-  (650)  13  -18  2004/02
  • TANIGUCHI Yoshiaki; UEOKA Atsushi; WAKAMIYA Naoki; MURATA Masayuki; NODA Fumio  IEICE technical report  103-  (122)  45  -48  2003/06
  • TANIGUCHI Yoshiaki; SASABE Masahiro; WAKAMIYA Naoki; MURATA Masayuki; MIYAHARA Hideo  Technical report of IEICE. CQ  102-  (191)  41  -46  2002/07
  • TANIGUCHI Yoshiaki; SASABE Masahiro; WAKAMIYA Naoki; MURATA Masayuki; MIYAHARA Hideo  ITE Technical Report  26-  (0)  41  -46  2002

Awards & Honors

  • 2021/03 TCJ 2020 Best Instructor Award
     
    受賞者: Yoshiaki Taniguchi
  • 2020/08 TCJ 2019 Best Instructor Award
     
    受賞者: Yoshiaki Taniguchi
  • 2019/08 TCJ 2018 Best Instructor Award
     
    受賞者: Yoshiaki Taniguchi
  • 2018/08 TCJ 2017 Best Instructor Award
     
    受賞者: Yoshiaki Taniguchi
  • 2018/02 IEEE Kansai Section Medal
     
    受賞者: Yoshiaki Taniguchi
  • 2017/08 TCJ 2016 Best Instructor Award
     
    受賞者: Yoshiaki Taniguchi
  • 2017/02 IEEE Senior Member
     
    受賞者: Yoshiaki Taniguchi
  • 2016/09 IPSJ Senior Member
     
    受賞者: Yoshiaki Taniguchi
  • 2016/08 TCJ 2015 Best Instructor Award
     
    受賞者: Yoshiaki Taniguchi
  • 2015/10 IEEE GCCE 2015 Student Paper Award
     
    受賞者: Kazuki Fukuyama;Yoshiaki Taniguchi;Nobukazu Iguchi
  • 2015/06 IPSJ Activity Contribution Award
     
    受賞者: Department of Informatics, Faculty of Science and Engineering, Kindai University
  • 2012/09 IEICE Communications Society Distinguished Contributions Award
     
    受賞者: Yoshiaki Taniguchi
  • 2012/03 CSS 2012 Best Paper Award
     
    受賞者: Shizuka Fujisawa;Go Hasegawa;Yoshiaki Taniguchi;Hirotaka Nakano
  • 2011/05 AICT 2011 Best Paper Award
     international_society 
    受賞者: Gyeongyeon Kang;Yoshiaki Taniguchi;Go Hasegawa;Hirotaka Nakano
  • 2009/11 UBICOMM 2009 Best Paper Award
     international_society 
    受賞者: Shoichi Takemori;Go Hasegawa;Yoshiaki Taniguchi;Hirotaka Nakano

Research Grants & Projects

  • 日本学術振興会：科学研究費 基盤研究(C)
    Date (from‐to) : 2023/04 -2027/03 
    Author : 谷口 義明
  • 養殖場モニタリングのための水中通信方式の開発
    JSPS：Grant-in-Aid for Scientific Research (C)
    Date (from‐to) : 2019/04 -2023/03 
    Author : Yoshiaki Taniguchi
  • 水棲生物モニタリングのためのセンサ情報収集手法の開発
    JSPS：Grant-in-Aid for Scientific Research (C)
    Date (from‐to) : 2016/04 -2019/03 
    Author : Yoshiaki Taniguchi
  • Interface estimation method for graph coloring-based link scheduling in wireless relay networks
    JSPS：Grant-in-Aid for Scientific Research (C)
    Date (from‐to) : 2013/04 -2016/03 
    Author : Yoshiaki Taniguchi
  • JSPS：Grant-in-Aid for Young Scientists (B)
    Date (from‐to) : 2011/04 -2013/03 
    Author : Yoshiaki Taniguchi
     
    We proposed self-organizing transmission scheduling mechanisms for periodically gathering sensor data at a base station in wireless sensor networks. In the proposed mechanisms, sensor nodes self-organize message transmissionand sleep timings. To achieve self-organizing control of sensor networks, we apply phase-locking and anti-phase synchronization in a pulse-coupled oscillator model. Simulation experiments confirm that our mechanism significantly improves the data gathering ratio and energy-efficiency in comparison with the conventional mechanism.
  • MEXT：Grant-in-Aid for Young Scientists (B)
    Date (from‐to) : 2009/04 -2011/03 
    Author : Yoshiaki Taniguchi
     
    Wireless sensor networks have attracted a great deal of attention. The performance of wireless sensor networks is greatly influenced by the initial physical placement of the sensor nodes. In this research, we proposed a novel deployment method for sensor nodes, when a large number of nodes is distributed from the air in a monitoring region that is inaccessible from the ground. In our deployment method, each sensor node is equipped with a parachute and a device to switch between its two falling behaviors in the air. After being dropped from midair, sensor nodes stochastically coordinate their falling behavior in order to distribute themselves uniformly in the monitoring region. Through simulation evaluations, we confirmed that our proposal can achieve a high uniformity in the placement of the nodes.
  • MEXT：Grant-in-Aid for Scientific Research on Priority Areas
    Date (from‐to) : 2008/04 -2011/03 
    Author : Shinji Shimojo
     
    Recently, sensor devices are being ubiquitously deployed. These devices send and receive a large amount of sensor data over the network. Due to these advances of sensor and network technologies, various services that make use of those 'ubiquitous network contents' are expected to be widely developed. We studied on techniques to collect, manage, discover, and analyze those massive sensor data.

Others

  • 2020/04 -2021/03  IoT機器を安全に利用・管理するための無線通信セキュリティ基礎技術の開発 
    近畿大学学内研究助成金 研究種目：奨励研究助成金 課題番号：SR08
  • 2016/04 -2017/03  情報通信技術を用いた二輪車の安全運転支援に関する研究 
    近畿大学学内研究助成金 研究種目：奨励研究助成金 課題番号：SR02

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