Shigeno, Hiroshi

写真a

Affiliation

Faculty of Science and Technology, Department of Information and Computer Science （Yagami）

Position

Professor

Related Websites
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Profile Summary 【 Display / hide 】

  • This laboratory is focused on computer networking, mobile computing, and ubiquitous computing, as well as building protocols, mechanisms, architectures, and applications for high-speed networks and wireless networks to provide better performance, higher availability, and secure network services. Our current research interests are in wireless networking architecture and protocols, protocols and applications for Intelligent Transport Systems (ITS), information-centric networking, mobile edge computing, and network security.

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Other Affiliation 【 Display / hide 】

  • Research Institute for Digital Media and Content, Director

  • Graduate School of Science and Technology, School of Science for Open and Environmental Systems, Center for Information and Computer Science

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Career 【 Display / hide 】

  • 2012.04
    -
    Present

    Keio University, Department of Information and Computer Science, Professor

  • 2019.04
    -
    Present

    Cabinet Office, Government of Japan, Bureau of Science, Technology and Innovation, Senior Science and Technology Policy Fellow

  • 1994.11
    -
    1995.02

    Keio University, Department of Information and Computer Science, Research Assistant

  • 1998.04
    -
    2000.03

    Keio University, Department of Information and Computer Science, Assistant Professor (Non-tenured)

  • 2000.04
    -
    2003.03

    Keio University, Department of Information and Computer Science, Assistant Professor

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Academic Background 【 Display / hide 】

  • 1990.03

    Keio University, Faculty of Science and Engineering, 計測工学

    University, Graduated

  • 1992.03

    Keio University, Graduate School, Division of Science and Engineering, 計測工学専攻

    Graduate School, Completed, Master's course

  • 1997.03

    Keio University, Graduate School, Division of Science and Engineering, 計測工学専攻

    Graduate School, Completed, Doctoral course

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Academic Degrees 【 Display / hide 】

  • Ph.D in Engineering, Keio University, Coursework, 1997.03

    A Communication Platform for Mobile Computing

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Research Areas 【 Display / hide 】

  • Informatics / Information network

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Research Keywords 【 Display / hide 】

  • Network Architecture

  • Network Protocol

  • Mobile Computing

  • Wireless Networks

  • Intelligent Transport Systems

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Books 【 Display / hide 】

  • 情報学基礎 第2版

    重野 寛, 岡田謙一他, 共立出版, 2013.11

  • 情報学基礎

    重野 寛, 岡田謙一他, 共立出版, 2013.03

  • ユビキタスコンピューティング

    SHIGENO HIROSHI, オーム社, 2009.07

  • IPv6プロトコル徹底解説

    生田りえ子，勝本道哲，重野寛, 日経BP社, 2001.03

  • IT TEXTシリーズ コンピュータネットワーク

    松下温，重野寛，屋代智之, オーム社, 2000.09

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Papers 【 Display / hide 】

  • Q-Learning-Based Spatial Reuse Method Considering Throughput Fairness by Negative Reward for High Throughput

    Takematsu M., Sakai S., Kunibe M., Shigeno H.

    Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST （Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST)  419 LNICST   207 - 219 2022

    ISSN  18678211

    　View Summary

    In this paper, we propose a Q-learning-based spatial reuse method considering throughput fairness in Wireless LANs (WLANs). In Spatial Reuse (SR) methods, wireless nodes try to use wireless resources efficiently by controlling both the Transmission Power (TP) and Carrier Sense Threshold (CST). When wireless nodes are densely deployed, the SR methods have difficulty to achieve both the high aggregate throughput and throughput fairness because the mutual interference among the wireless nodes becomes severe. The proposed method removes the difficulty by utilizing Q-learning where wireless nodes can learn the adequate CST and TP by themselves. The proposed method motivates nodes to use wireless resources actively by rewards, while it suppresses nodes with high throughput using the resources by negative rewards. As a result, the wireless resources are distributed among nodes with low throughput, and the proposed method achieves both the high aggregate throughput and throughput fairness. Simulation results show that the proposed method improves the aggregate throughput with keeping throughput fairness.

  • Multihop Cooperative Perception with Mitigating Sidelink Resource Breaks by Packet Filtering

    Kunibe M., Shigeno H.

    2022 IEEE International Conference on Pervasive Computing and Communications Workshops and other Affiliated Events, PerCom Workshops 2022 （2022 IEEE International Conference on Pervasive Computing and Communications Workshops and other Affiliated Events, PerCom Workshops 2022)     599 - 604 2022

    　View Summary

    In this paper, we utilize multihop communication in sidelink Cellular Vehicle-to-Everything (C-V2X) communication for extending the perceptible range of surrounding environments. The challenging task of the sidelink multihop communication is to maintain periodically reserved wireless resources. Since the multihop communication generates aperiodic traffic, it has the potential to break the reserved resources in C-V2X. The proposed method filters the packets that will break the reserved resources. Furthermore, to avoid degrading the perception quality due to the packet filtering, the proposed method prompts vehicles to forward packets when there is enough room in their resources for forwarding the packets. In the simulation results, we confirm that the proposed method extends the perceptible range compared with single-hop communication and multihop communication with several ETSI parameters.

  • A Dynamic Mix-zone Scheme Considering Communication Delay for Location Privacy in Vehicular Networks

    Yamazaki R., Yoshida M., Shigeno H.

    2021 IEEE International Conference on Pervasive Computing and Communications Workshops and other Affiliated Events, PerCom Workshops 2021 （2021 IEEE International Conference on Pervasive Computing and Communications Workshops and other Affiliated Events, PerCom Workshops 2021)     245 - 250 2021.03

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    In vehicular networks, vehicles periodically exchange messages that include their positions and IDs. On the other hand, adversaries can violate the vehicles' location privacy by obtaining the vehicles' movement history from the messages. In recent studies, mix-zone-based schemes protect the vehicles' location privacy. In the schemes, vehicles utilize pseudonyms instead of their IDs in encrypted messages, and therefore adversaries cannot track them by their IDs. However, since the messages are encrypted by public keys of Road Side Units (RSUs), the vehicles can change their pseudonyms only around the RSUs. In this paper, we propose a Dynamic Mix-zone scheme considering Communication delay for Location Privacy (DMCLP). The DMCLP enables vehicles to change their pseudonyms even if there are no RSUs around them by removing necessity of RSUs from the mix-zone-based schemes. To remove the necessity, the DMCLP adopts both Identity-Based Signature (IBS) and proposed two-stage mix-zones. The IBS enables vehicles to certify the correctness of public keys by themselves. Therefore, it removes the necessity to tell the correctness to trusted authorities through RSUs. Furthermore, since RSUs guarantee connectivity of vehicular networks, influence of communication delay on pseudonym change becomes a problem without RSUs. The proposed two-stage mix-zones mitigate the influence of communication delay by removing vehicles that will cause communication delay from pseudonym change processes. Simulation results show that the proposed scheme improves update frequency of pseudonyms by 50 at most in 1000 seconds compared with the previous mix-zone-based scheme.

  • Intraoperative Hypotension Prediction System by Considering Personal Lifestyle and Medical History

    Inada R., Doi C., Yamasaki Y., Shigeno H., Seki H.

    2021 IEEE International Conference on Pervasive Computing and Communications Workshops and other Affiliated Events, PerCom Workshops 2021 （2021 IEEE International Conference on Pervasive Computing and Communications Workshops and other Affiliated Events, PerCom Workshops 2021)     489 - 494 2021.03

    　View Summary

    Intraoperative hypotension may occur during surgery, depending on the patient's condition and the amount of anesthetics administered. Intraoperative hypotension causes adverse events such as myocardial infarction, acute kidney injury, and stroke, which may affect patient prognosis and should be avoided. However, it is challenging to predict intraoperative hypotension before surgery. Therefore, the authors propose a system that predicts the occurrence of intraoperative hypotension with higher accuracy than existing studies to help preventing intraoperative hypotension. Specifically, the occurrence of intraoperative hypotension is predicted by using information about personal lifestyle and medical history obtained from the pre-anesthesia questionnaire in addition to the patients' baseline characteristics such as age and gender that have already been used. The authors constructed prediction model, that predicted intraoperative hypotension with an F-measure of 0.724.

  • A Dynamic Task Offloading Method with Centralized Controller to Improve Task Success Rate

    Toyoda M., Satake H., Shigeno H.

    2021 IEEE International Conference on Pervasive Computing and Communications Workshops and other Affiliated Events, PerCom Workshops 2021 （2021 IEEE International Conference on Pervasive Computing and Communications Workshops and other Affiliated Events, PerCom Workshops 2021)     483 - 488 2021.03

    　View Summary

    As the Internet of Vehicles (IoV) develops, vehicular applications become more complex. The existing offloading methods in the vehicular networks predict the time it takes to process a task and offload it to the computation resources that minimize the delay in execution. However, these methods do not adequately consider other vehicles on the road or the time constraints of the applications. Therefore, we propose a dynamic task offloading method with a centralized controller to improve the task success rate considering all vehicles on the road. We formulate the objective function which maximizes the success rate as a multiple knapsack problem by using an approximation algorithm. In the proposed method, the centralized controller gathers the information on vehicles and edge servers, and based on the algorithm it determines the edge server that maximizes the task success rate in the entire area. The algorithm calculates vehicle priority depending on the task success status of vehicles and determines the edge server based on that priority. In this paper, we conducted the experiments in which we implemented the prototype of the proposed method, and evaluated its performance. The experiments showed that the offloading method improved the task success rate by up to 38% compared to the existing methods.

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Papers, etc., Registered in KOARA 【 Display / hide 】

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Reviews, Commentaries, etc. 【 Display / hide 】

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Presentations 【 Display / hide 】

  • IoTサービス基盤から考えるネットワーク仮想化技術 —情報流の視点から—

    重野 寛

    電子情報通信学会2017年総合大会, 

    2017.03
    , 

    Symposium, workshop panel (nominated)

  • Reputation Aggregation Method Considering Reliability of Newly Joining Peers in Unstructured P2P Networks

    Takashi Yajima, Hiroki Ushikubo, Hiroshi Shigeno

    International Conference on Broadband, Wireless Computing, Communication and Applications (BWCCA 2012) (Victoria, Canada) , 

    2012.11
    , 

    Oral presentation (general)

  • Comparative Evaluation of Information Dissemination Method for Dynamic Vehicular Route Planning

    Koichiro Hara, Masaki Suzuki, Taisei Tokuda, Hiroshi Shigeno

    International Conference on ITS Telecommunications (ITST 2012) (Taipei, Taiwan) , 

    2012.11
    , 

    Oral presentation (general)

  • P2Pライブストリーミングサービスにおける拡散率に基づくチャンク交換手法

    酒田良樹, 高山和幸, 遠藤伶, 重野寛

    第20回マルチメディア通信と分散処理ワークショップ (愛媛県松山市) , 

    2012.10
    , 

    Oral presentation (general), 情報処理学会

  • A Chunk Scheduling based on Chunk Diffusion Ratio on P2P Live Streaming

    Yoshiki Sakata, Kazuyuki Takayama, Rei Endo, Hiroshi Shigeno

    International Conference on Network-Based Information Systems (NBiS2012) (Melbourne, Australia) , 

    2012.09
    , 

    Oral presentation (general)

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Research Projects of Competitive Funds, etc. 【 Display / hide 】

  • V2X-based Collective Perception for Cooperative Driving in Mixed Traffic

    2020.04
    -
    2024.03

    MEXT,JSPS, Grant-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), Principal investigator

  • 自動車アドホックネットワークにおける情報指向アプローチによる分散情報共有基盤

    2016.04
    -
    2020.03

    MEXT,JSPS, Grant-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), Principal investigator

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Awards 【 Display / hide 】

  • IPSJ Fellow, Information Processing Society of Japan

    2019.06, Information Processing Society of Japan

    Type of Award： Award from Japanese society, conference, symposium, etc.

  • 独立行政法人日本学術振興会「科研費」審査員表彰

    2015.10, 独立行政法人日本学術振興会

    Type of Award： Other

  • 電子情報通信学会通信ソサエティ活動功労賞

    2015.09, 電子情報通信学会通信ソサエティ

    Type of Award： Award from Japanese society, conference, symposium, etc.

  • 第24回マルチメディア通信と分散処理ワークショップ(DPSWS2016) 優秀論文賞

    小川紘基, 柳田諒, 五味和良, 重野寛, 2016.10, 第24回マルチメディア通信と分散処理ワークショップ(DPSWS2016), インフラレスの動的走行経路案内のための双方向シミュレーションの実装と評価

    Type of Award： Award from Japanese society, conference, symposium, etc.

  • 情報処理学会 2016年度学会活動貢献賞「第78回全国大会開催への貢献」

    2017.06

    Type of Award： Award from Japanese society, conference, symposium, etc.

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Courses Taught 【 Display / hide 】

  • RECITATION IN INFORMATION AND COMPUTER SCIENCE

    2022

  • NETWORK ENGINEERING 2

    2022

  • LABORATORIES IN INFORMATION AND COMPUTER SCIENCE 2

    2022

  • INTRODUCTION TO INFORMATICS

    2022

  • INDEPENDENT STUDY ON SCIENCE FOR OPEN AND ENVIRONMENTAL SYSTEMS

    2022

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Social Activities 【 Display / hide 】

  • 実環境を想定した自動走行支援通信のメッセージセット及びプロトコルに関する調査検討会 委員

    2018.10
    -
    2019.03

  • 公益財団法人佐藤陽国際奨学財団 選考委員

    2018.09
    -
    2020.08

  • 平成30年度Connected Car社会の実現に向けた既存ITS用無線システムの高度化を行うための技術的条件等に関する調査検討会

    2018.09
    -
    2019.03

  • Connected Car社会の実現に向けた既存ITS用無線システムを補完する新たな無線システムの技術的条件等に関する調査検討会

    2018.08
    -
    2019.03

  • 国立研究開発法人情報通信研究機構 高度通信・研究会開発委託研究評価委員会 委員

    2018.04
    -
    2020.03

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Memberships in Academic Societies 【 Display / hide 】

  • 情報処理学会

    　

  • 電子情報通信学会

    　

  • ACM

    　

  • IEEE

    　
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Committee Experiences 【 Display / hide 】

  • 2017.06
    -
    2019.06

    IPSJ Director, Information Processing Society of Japan (IPSJ)

  • 2019.06
    -
    2022.06

    Chair, ITS Info-communications Forum, Advanced ITS Info-communication Systems Committee

  • 2018.04
    -
    Present

    Chief Examiner, Information Processing Society of Japan (IPSJ), IPSJ SIG on Intelligent Transport Systems and Smart Community

  • 2018.01
    -
    2019.12

    Information Services Committee, Co-Chair, IEEE ComSoc Asia Pacific Board

  • 2018.11
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    2020.10

    技術推進機構 SIPインフラ連携委員会 新技術の地域実装促進小委員会（仮称） 幹事, （社）土木学会

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