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Fundamentally technical study of highly precise prediction of radio wave propagation characteristics to build the fifth generation mobile communication system

Research Project

Project/Area Number 19K04385
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 InstitutionHokkaido University

Principal Investigator

Omiya Manabu  北海道大学, 情報基盤センター, 教授 (30160625)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords通信工学 / 無線通信 / 移動体通信 / 5G / 屋内電波伝搬 / ミリ波 / 数値解析 / 電磁界解析 / 計算機シミュレーション / 計算機シミュレーshジョン / 電波伝搬
Outline of Research at the Start

5Gを実現するために必要不可欠な検討課題のひとつであるスモールセルに関して,28GHz帯屋内伝搬特性および屋内から屋外への伝搬特性の推定を計算機シミュレーションに基づいて明らかにする。そのために,研究代表者が開発を行っている計算機シミュレーションのための大規模電磁界解析システムJet FDTDの適用を検討する。さらに,合理的な時間内に高精度な数値結果を得るための,建物構造物の数値モデル化手法の提案,考慮すべき電波伝搬範囲の特定及びプログラムのチューニングを行う。

Outline of Final Research Achievements

Objectives of the research are proposing a numerical method to compute indoor and indoor-to-outdoor propagation characteristics and predicting them, which is necessary to build the fifth generation (5G) mobile communication system.
Since the frequency band of 28 GHz is utilized to perform the high-speed communication in the 5G system, clarifying radio wave propagation characteristics in the frequency band is one of urgent research subjects. Calculations is more effective than measurements to predict propagation characteristics in various indoor environment. At first, the work proposed a method of large-scale electromagnetic field computation to predict radio wave propagation characteristics in the 28 GHz band. Second, the fundamental requirements such as computer resources and computational times were discussed as well as the reliability of numerical results for the propagation characteristics in a conference room and a residential house.

Academic Significance and Societal Importance of the Research Achievements

5G移動通信システムでは高速通信を実現するために,28GHz帯ミリ波周波数と数十メートルを通信範囲とするスモールセルを利用する.28GHz帯における屋内及び屋内から屋外への伝搬特性推定に関する検討は未だ十分に行われておらず,その研究成果が期待されている.
研究代表者の研究グループが開発を行っている伝搬特性推定のための数値解析手法及び数値モデル化手法を高精度化及び高速化し,28GHz帯における伝搬特性推定に適用した.それら検討から,さまざまな屋内環境における伝搬モデルを明らかにし,その標準化に貢献した.

Report

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

    (12 results)

All 2021 2020 2019

All Journal Article (8 results) (of which Peer Reviewed: 8 results,  Open Access: 7 results) Presentation (4 results)

  • [Journal Article] Prediction of 28 GHz Millimeter-wave Indoor Propagation Characteristics in a Residential House2021

    • Author(s)
      S. Nagamoto, M. Omiya
    • Journal Title

      2021 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (APS/URSI)

      Volume: MO-A4.1A.4 Pages: 231-232

    • DOI

      10.1109/aps/ursi47566.2021.9704185

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Computer Simulation of 28 GHz Millimeter-wave Propagation in Residential House Environment2021

    • Author(s)
      S. Nagatomo, M. Omiya
    • Journal Title

      2021 IEEE International Symposium on Antennas and Propagation (ISAP)

      Volume: 1 Pages: 1-2

    • DOI

      10.23919/isap47258.2021.9614598

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Calculation of Electromagnetic Field Distribution for Predicting Indoor 28 GHz Millimeter-wave Propagation Characteristics in Residential House Environment2021

    • Author(s)
      S. Nagatomo, M. Omiya
    • Journal Title

      Technical Digest of 4th International Workshop on Photonics applied to Electromagnetic Measurements (PEM2021)

      Volume: M-6 Pages: 31-33

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Prediction of 28 GHz Propagation Characteristics in an Indoor Office Environment Based on Large-scale Computer Simulations2021

    • Author(s)
      S. Nagamoto, M. Omiya
    • Journal Title

      2020 International Symposium on Antennas and Propagation (ISAP 2020)

      Volume: 2G4-3 Pages: 1-2

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Characterization of 28 GHz Millimeter-Wave Propagation in an Indoor Office Environment Based on Large-Scale Computational Electromagnetics2020

    • Author(s)
      S. Nagamoto, M. Omiya
    • Journal Title

      IEICE Proceeding Series

      Volume: 63 Pages: H2-4

    • DOI

      10.34385/proc.63.H2-4

    • NAID

      230000012541

    • ISSN
      2188-5079
    • Year and Date
      2020-12-02
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Highly Precise Prediction of 28 GHz Indoor Radio Wave Propagation Characteristics in an Office Environment for Design of 5G Wireless Networks2020

    • Author(s)
      S. Nagamoto, M. Omiya
    • Journal Title

      2020 IEEE Region 10 Conference (TENCON 2020)

      Volume: TuA25-4 Pages: 113-116

    • DOI

      10.1109/tencon50793.2020.9293708

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Prediction of 5.2 GHz Indoor-to-outdoor Propagation through Concrete Walls in an Office Building2019

    • Author(s)
      K. Saito, M. Omiya
    • Journal Title

      IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition 2019

      Volume: PS-4 Pages: 1-2

    • DOI

      10.1109/iwem.2019.8887910

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Predicting Outdoor Angular Characteristics and Power Distribution of Wireless LAN Signal Leaking from an Office Building2019

    • Author(s)
      K. Saito, M. Omiya
    • Journal Title

      2019 International Symposium on Antennas and Propagation

      Volume: TA1P-P.42 Pages: 1-3

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 戸建住宅環境における屋内から屋外への28GHzミリ波伝搬に関する考察2021

    • Author(s)
      長本さんご,大宮 学
    • Organizer
      令和3年度電気・情報関係学会北海道支部連合大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 5G無線ネットワーク設計のための屋内28GHzミリ波伝搬特性推定2021

    • Author(s)
      大宮 学,長本さんご
    • Organizer
      令和3年度電気・情報関係学会北海道支部連合大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 大規模計算電磁気学に基づく戸建住宅の28GHzミリ波伝搬特性評価2020

    • Author(s)
      長本さんご,大宮 学
    • Organizer
      令和2年度電気・情報関係学会北海道支部連合大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 屋内から屋外への電波伝搬に関する屋外RSSI分布の推定2019

    • Author(s)
      大宮 学
    • Organizer
      令和元年度電気・情報関係学会北海道支部連合大会
    • Related Report
      2019 Research-status Report

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

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