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A Network Management Protocol for Connected Cars

Research Project

Project/Area Number 20K19790
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 60060:Information network-related
Research InstitutionChuo University

Principal Investigator

Yoshida Masahiro  中央大学, 国際情報学部, 准教授 (60785913)

Project Period (FY) 2020-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords自動運転車 / エッジコンピューティング / 自動運転 / ネットワーク制御
Outline of Research at the Start

我が国の超高齢化と労働人口の減少が進む中で、自動車の自動運転技術を実現することは極めて重要である。自動運転車はモバイル網などを介してクラウドと通信可能なコネクテッドカーとして実現される。しかし、コネクテッドカーが高速道路を80km/h以上で走行すると、モバイル網のエリア切り替え(ハンドオフ)時に通信品質が劣化し、クラウドとの接続が不安定になり、安全な自動運転を実現することは困難となる。本研究では、高速移動時のコネクテッドカーの通信遅延時間を200%以上改善する通信プロトコルを実現することを目的とする。

Outline of Final Research Achievements

Connected cars generate a huge amount of Internet of Things (IoT) sensor information called Controller Area Network (CAN) data. Although each CAN data packet is very small, a connected car generates thousands of CAN data packets per second. Therefore, real-time CAN data collection from connected cars to a cloud system is one of the most challenging problems in the current IoT. In this paper, we propose an Edge computing-enhanced network Redundancy Elimination service (EdgeRE) for CAN data collection. In developing EdgeRE, we design a CAN data compression architecture that combines in-vehicle computers, edge atacenters, and a public cloud system. EdgeRE includes the idea of a ierarchical data compression and dynamic data buffering at edge datacenters for real-time CAN data collection. Across a wide range of field tests with connected cars and an edge computing testbed, we show that the EdgeRE reduces the bandwidth usage by 88% and the number of packets by 99%.

Academic Significance and Societal Importance of the Research Achievements

本研究は、コストの安い既存の携帯電話網を自動運転に活用するという点で研究成果の実現性が高く、コネクテッドカーが高速移動する際の携帯電話網の通信品質の安定化、高信頼化に役立つ通信プロトコルを実現するという点で社会への波及効果が期待できる。また、本研究は、先進国だけでなく、携帯電話網の通信品質が不安定な発展途上国において自動運転の早期実用化につながるため、社会的に大きな意味を持つ。

Report

(3 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • Research Products

    (14 results)

All 2022 2021

All Journal Article (6 results) (of which Int'l Joint Research: 3 results,  Open Access: 3 results) Presentation (2 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results) Book (1 results) Patent(Industrial Property Rights) (5 results) (of which Overseas: 5 results)

  • [Journal Article] Annual Report of Technical Committee on Network Systems2022

    • Author(s)
      A. Nakao, T. Oishi, T. Ikebe, S. Yamaguchi and M. Yoshida
    • Journal Title

      IEICE Communication Society Global Newsletter

      Volume: 46 Pages: 1-2

    • Related Report
      2021 Annual Research Report
    • Open Access / Int'l Joint Research
  • [Journal Article] Report on 38th IN/NS Research Workshop2022

    • Author(s)
      M. Yoshida, K. Mihara, T. Ikebe, T. Oishi, A. Nakao, N. Tanicuchi, F. Hoshino, K. Watabe, T. Jo, K. Hato, and K. Ishida
    • Journal Title

      IEICE Communication Society Global Newsletter

      Volume: 46 Pages: 1-2

    • Related Report
      2021 Annual Research Report
    • Open Access / Int'l Joint Research
  • [Journal Article] Report on NS English Session at 2022 IEICE General Conference - BS-3: Enabling Technologies for Network Systems and Services during the 5G/Beyond 5G Era -2022

    • Author(s)
      Z. Liu, M. Yoshida, K. Mihara, T. Ikebe, S. Oishi and A. Nakao
    • Journal Title

      IEICE Communication Society Global Newsletter

      Volume: 46 Pages: 1-2

    • Related Report
      2021 Annual Research Report
    • Open Access / Int'l Joint Research
  • [Journal Article] Report on NS English Session at 2021 IEICE General Conference - BS-7: AI technologies and their applications for future network systems and services -2021

    • Author(s)
      K. Kanai, M. Yoshida, S. Kawano, S. Mizuno, and A. Nakao
    • Journal Title

      IEICE Communication Society Global Newsletter

      Volume: 45 Pages: 1-4

    • Related Report
      2020 Research-status Report
  • [Journal Article] Report on the 2020 NS English Session Awards and Award Ceremony2021

    • Author(s)
      A. Nakao, T. Oishi, S. Mizuno, S. Kawano and M. Yoshida
    • Journal Title

      IEICE Communication Society Global Newsletter

      Volume: 45 Pages: 1-4

    • Related Report
      2020 Research-status Report
  • [Journal Article] Annual Report of Technical Committee on Network Systems2021

    • Author(s)
      A. Nakao, T. Oishi, Y. Okazaki, S. Mizuno, M. Yoshida and Y. Tanigawa
    • Journal Title

      IEICE Communication Society Global Newsletter

      Volume: 44 Pages: 1-4

    • Related Report
      2020 Research-status Report
  • [Presentation] EdgeRE: An Edge Computing-enhanced Network Redundancy Elimination Service for Connected Cars2021

    • Author(s)
      M. Yoshida, K. Mori, T. Inoue, H. Tanaka
    • Organizer
      IEEE IoTNAT'21
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 2020年度ネットワークシステム研究会における研究動向報告2021

    • Author(s)
      吉田雅裕,河野伸也,水野士郎
    • Organizer
      電子情報通信学会NS研究会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Book] AIリテラシー2021

    • Author(s)
      岡嶋裕史、吉田雅裕
    • Total Pages
      300
    • Publisher
      技術評論社
    • Related Report
      2020 Research-status Report
  • [Patent(Industrial Property Rights)] COMMUNICATION RANGE CONTROL DEVICE, METHOD, AND PROGRAM2021

    • Inventor(s)
      Masahiro Yoshida et al.
    • Industrial Property Rights Holder
      Masahiro Yoshida et al.
    • Industrial Property Rights Type
      特許
    • Filing Date
      2021
    • Related Report
      2020 Research-status Report
    • Overseas
  • [Patent(Industrial Property Rights)] DATA COMPRESSION APPARATUS, DATA COMPRESSION METHOD, AND PROGRAM2021

    • Inventor(s)
      Masahiro Yoshida et al.
    • Industrial Property Rights Holder
      Masahiro Yoshida et al.
    • Industrial Property Rights Type
      特許
    • Filing Date
      2021
    • Related Report
      2020 Research-status Report
    • Overseas
  • [Patent(Industrial Property Rights)] DATA COMPRESSION TRANSMISSION SYSTEM, INTERMEDIATE SERVER, METHOD, AND PROGRAM2021

    • Inventor(s)
      Masahiro Yoshida et al.
    • Industrial Property Rights Holder
      Masahiro Yoshida et al.
    • Industrial Property Rights Type
      特許
    • Filing Date
      2021
    • Related Report
      2020 Research-status Report
    • Overseas
  • [Patent(Industrial Property Rights)] DISTRIBUTED PROCESSING SUPPORT APPARATUS, DISTRIBUTED PROCESSING SUPPORT METHOD, AND PROGRAM2021

    • Inventor(s)
      Masahiro Yoshida et al.
    • Industrial Property Rights Holder
      Masahiro Yoshida et al.
    • Industrial Property Rights Type
      特許
    • Filing Date
      2021
    • Related Report
      2020 Research-status Report
    • Overseas
  • [Patent(Industrial Property Rights)] NETWORK MANAGEMENT SYSTEM, MANAGEMENT DEVICE, RELAY DEVICE, METHOD, AND PROGRAM2021

    • Inventor(s)
      Masahiro Yoshida et al.
    • Industrial Property Rights Holder
      Masahiro Yoshida et al.
    • Industrial Property Rights Type
      特許
    • Filing Date
      2021
    • Related Report
      2020 Research-status Report
    • Overseas

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Published: 2020-04-28   Modified: 2023-01-30  

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