• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Multiuser Detection based on Markov chain Monte Carlo Methods

Research Project

Project/Area Number 19K04396
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 InstitutionKeio University

Principal Investigator

Sanada Yukitoshi  慶應義塾大学, 理工学部(矢上), 教授 (90293042)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords5G / マルコフ連鎖モンテカルロ法 / 多信号復調 / 大規模MIMO / 格子基底縮小 / チャネル推定 / 超多素子アンテナ / Gibbsサンプリング / 分散アンテナ / ターボ復調 / MIMO
Outline of Research at the Start

第5世代移動通信システムでは多数のセンサデバイスからの情報を収容し,従来とは違ったアプリケーションのプラットフォームになることが期待されている.そのため基地局では超多素子アンテナを実装し,同時に100以上の信号を受信,復調することが必要である.従来の復調アルゴリズムでは計算量的に同時受信することができる信号数が10程度に限られてしまう.そこで本研究ではマルコフ連鎖モンテカルロ法を用いて100を超える信号を同時に受信し復調するアルゴリズムを検討する.提案アルゴリズムは確率分布の期待値を簡易的に求める手法であるが,これを信号復調に適用する.

Outline of Final Research Achievements

Massive connection is one of the key features of a fifth generation (5G) mobile communication system. A base station with massive antenna elements has been implemented for 5G and it is possible to demodulate more than 100 signals at a time. However, conventional demodulation scheme demands huge computational complexity. Thsu, in this research, the applicaton of a Markov chain Monte Carlo method to mutliple signal detetion has been invetigated. More specifically, a candidate symbol selection with a novel selection probability curve has been proposed. Futhermore, a forcible symbol change scheme has been proposed. These schemes improve the bit error rate performance especially under high signal-to-noise ratio conditions.

Academic Significance and Societal Importance of the Research Achievements

これらの研究成果は従来とは違った多数接続アプリケーションのプラットフォームに適用することが期待できる.その例としては工場内の機器を無線でつなぎ,遠隔から工場を制御するスマート工場などが考えられる.このようなプラットフォームに第5世代移動通信で実用化された超多素子アンテナ基地局を用いれば,同時に100以上の信号を受信,復調することができる.

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (15 results)

All 2022 2021 2020 2019

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (11 results) (of which Int'l Joint Research: 6 results)

  • [Journal Article] Reduction of Out-of-Band Radiation with Quantized Precoding Using Gibbs Sampling in Massive MU-MIMO-OFDM2022

    • Author(s)
      YAMAKADO Taichi、OKAWA Riki、SANADA Yukitoshi
    • Journal Title

      IEICE Transactions on Communications

      Volume: E105.B Issue: 10 Pages: 1240-1248

    • DOI

      10.1587/transcom.2021EBP3172

    • ISSN
      0916-8516, 1745-1345
    • Year and Date
      2022-10-01
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Likelihood-Based Metric for Gibbs Sampling Turbo MIMO Detection2021

    • Author(s)
      KOBAYASHI Yutaro、SANADA Yukitoshi
    • Journal Title

      IEICE Transactions on Communications

      Volume: E104.B Issue: 9 Pages: 1046-1053

    • DOI

      10.1587/transcom.2020FGT0001

    • NAID

      130008082065

    • ISSN
      0916-8516, 1745-1345
    • Year and Date
      2021-09-01
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Forcible Search Scheme for Mixed Gibbs Sampling Massive MIMO Detection2021

    • Author(s)
      YAMAZAKI Kenji、SANADA Yukitoshi
    • Journal Title

      IEICE Transactions on Communications

      Volume: E104.B Issue: 4 Pages: 419-427

    • DOI

      10.1587/transcom.2020EBP3030

    • NAID

      130008014010

    • ISSN
      0916-8516, 1745-1345
    • Year and Date
      2021-04-01
    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Phase Selection in Round-Robin Scheduling Sequence for Distributed Antenna System2020

    • Author(s)
      G. Otsuru and Y. Sanada
    • Journal Title

      IEICE Trans. on Communications

      Volume: E103-B

    • NAID

      130007920561

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Gibbs サンプリングによるMIMO復調への格子基底縮小の適用2022

    • Author(s)
      戸村宏輔,眞田幸俊,小林佑太郎
    • Organizer
      電子情報通信学会技術報告
    • Related Report
      2021 Annual Research Report
  • [Presentation] User Set Elimination in Allocation Sequences of RR Scheduling for Distributed Antenna Transmission2021

    • Author(s)
      Go Otsuru, Yukitoshi Sanada
    • Organizer
      TPoC5GE in conjunction with IEEE 93th Vehicular Technology Conference 2021 Spring
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Quantized Precoding for Out-of-Band Radiation Reduction in Massive MU-MIMO-OFDM2021

    • Author(s)
      Taichi Yamakado, Riki Okawa, Yukitoshi Sanada
    • Organizer
      IEEE 94th Vehicular Technology Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Weight Adjustment in Channel Estimation using Gibbs Sampling for MIMO Systems2021

    • Author(s)
      Kenshiro Chuman, Yukitoshi Sanada
    • Organizer
      IEEE 94th Vehicular Technology Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Gibbs サンプリングを用いたMIMOチャネル推定における重み最適化2021

    • Author(s)
      中馬健士郎 眞田幸俊
    • Organizer
      電子情報通信学会技術報告
    • Related Report
      2020 Research-status Report
  • [Presentation] Forcible Search with Mixed Gibbs Sampling Massive MIMO Detection2020

    • Author(s)
      Yamazaki Kenji、Sanada Yukitoshi
    • Organizer
      2020 IEEE Region 10 Conference
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] MIMO Detection with Block Parallel Gibbs Sampling and Maximum Ratio Combining2020

    • Author(s)
      K. Tomura, Y. Sanada, and K. Yutaro
    • Organizer
      2020 IEEE Region 10 Conference
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] GibbsサンプリングターボMIMO復調における尤度を用いたメトリックの適用2020

    • Author(s)
      小林佑太郎,眞田幸俊
    • Organizer
      電子情報通信学会技術報告,RCS2019-388
    • Related Report
      2019 Research-status Report
  • [Presentation] Gibbs Samplingを用いた大規模 MIMO復調方式における強制的シンボル探索の検討2020

    • Author(s)
      山崎健司,眞田幸俊
    • Organizer
      電子情報通信学会技術報告
    • Related Report
      2019 Research-status Report
  • [Presentation] 最大比合成を用いた混合ブロック並列GibbsサンプリングによるMIMO復調の検討2020

    • Author(s)
      戸村宏輔,眞田幸俊
    • Organizer
      電子情報通信学会技術報告
    • Related Report
      2019 Research-status Report
  • [Presentation] User Allocation with Round-Robin Scheduling Sequence for Distributed Antenna System2019

    • Author(s)
      G. Otsuru and Y. Sanada
    • Organizer
      IEEE Vehicular Technology Conference 2019 Fall
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

URL: 

Published: 2019-04-18   Modified: 2023-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi