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Study on weak signal detection in intra-vehicle wireless sensor networks

Research Project

Project/Area Number 18K04157
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 21020:Communication and network engineering-related
Research InstitutionToyota Central R&D Lab., Inc.

Principal Investigator

Tanaka Hiroya  株式会社豊田中央研究所, フロンティア研究領域 田中(宏)研究グループ, --- (00524646)

Co-Investigator(Kenkyū-buntansha) 羽多野 裕之  三重大学, 工学研究科, 准教授 (40402531)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords確率共鳴 / 通信 / 無線通信
Outline of Final Research Achievements

We propose a method that establishes a direct wireless link from transmission source to an out-of-range destination with the assistance of the surrounding communication nodes. In this method, a weak signal is amplified by utilizing the interference signals transmitted from the surrounding communication nodes. To evaluate the amplification gain, we study the mutual information in a multipath fading channel. As a result, we reveal that the mutual information is enhanced owing to the interference signals, and the proposed method enlarges the radio coverage area of the source node.

Academic Significance and Societal Importance of the Research Achievements

従来の手法である線形信号処理では、通信誤りの原因となる干渉信号は不要なものとして抑圧される。一方、提案手法で用いる非線形信号処理では、干渉信号を積極的に利用し信号検出性能の向上を図る。そのため、提案手法は、従来手法と全く異なる通信性能向上へのアプローチである。また、提案手法では、確率共鳴現象により従来の手法では検出できない微弱な信号を検出できる。よって、提案手法は、近年注目されているIoT(Internet of Things)や、ウェアラブル通信など、次世代の通信システムで重要な要素技術となる可能性をもつ。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (4 results)

All 2020 2019 2018

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (3 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Direct Wireless Link to Out-of-Range Node With Assistance of Surrounding Nodes2019

    • Author(s)
      Tanaka Hiroya、Hiraoka Shintaro、Arai Shintaro、Yamazato Takaya、Tadokoro Yukihiro
    • Journal Title

      IEEE Transactions on Vehicular Technology

      Volume: 68 Issue: 11 Pages: 10703-10712

    • DOI

      10.1109/tvt.2019.2934502

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] RSSI-Based Distance Estimation Enhanced by Interference Signals2020

    • Author(s)
      S. Horiuchi, H. Hatano, K. Sanada, K. Mori, T. Yamazato, A. Shintaro, M. Saito, Y. Tadokoro, and H. Tanaka
    • Organizer
      2020 International Symposium on Nonlinear Theory and Its Applications (NOLTA2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] RSSIに基づく距離測定技術のための干渉信号を用いたDither法の適用に関する研究2020

    • Author(s)
      堀内星哉,羽多野裕之,眞田耕輔,森香津夫,山里敬也,荒井伸太郎,齋藤将人,田所幸浩,田中宏哉
    • Organizer
      電子情報通信学会総合大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 干渉波を用いた確率共鳴受信機による微弱信号検出-PSK変調方式を用いた場合の特性評価-2018

    • Author(s)
      平岡真太郎、山里敬也、荒井伸太郎、田所幸浩、田中宏哉
    • Organizer
      信学技報, vol. 118, no. 311, RCS2018-179, pp. 7-12
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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