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Improving of Reception Characteristic under Mobile Reception of OFDM

Research Project

Project/Area Number 15K18069
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Communication/Network engineering
Research InstitutionTokyo University of Science

Principal Investigator

NAKAMURA AKIRA  東京理科大学, 基礎工学部電子応用工学科, 助教 (40736774)

Project Period (FY) 2015-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
KeywordsOFDM / 移動受信 / ICI / ECC / キャリア間干渉 / 誤り訂正符号 / OFDM変調 / 伝送路推定
Outline of Final Research Achievements

In this study, the compensation scheme of ICI(Inter-Carrier Interference) under the mobile reception of OFDM is discussed.
When the ICI canceller is performed, it is necessary to estimate the channel. The accuracy of estimation is deteriorated by ICI. Thus, the channel estimation scheme using iterative detection is proposed. It is shown that the proposed estimation scheme can improve the accuracy of estimation by computer simulations. Also, the distribution of ICI is analyzed. When the high-order modulation scheme is used in sub-carrier modulation, the distribution of interference power of ICI is close to the Gaussian distribution. In addition, the calculation scheme of LLR(Log Likelihood Ratio) is proposed under the case that ECC(Error Correction Code) is adopted for improving reception characteristics. In the LLR calculation scheme, the interference power of ICI is considered. As the results, the proposed LLR calculation scheme can improve reception characteristics.

Report

(4 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (11 results)

All 2017 2016

All Presentation (11 results) (of which Int'l Joint Research: 4 results)

  • [Presentation] NU-QAMを用いた偏波MIMO-超多値OFDMの移動受信特性の評価2017

    • Author(s)
      大坪弘明,中村聡,伊丹誠
    • Organizer
      映像情報メディア学会 放送技術研究会
    • Place of Presentation
      かんぽの宿 知多美浜
    • Year and Date
      2017-02-23
    • Related Report
      2016 Research-status Report
  • [Presentation] 移動受信環境下における偏波MIMO-超多値OFDMの特性改善2017

    • Author(s)
      大坪弘明,中村聡,伊丹誠
    • Organizer
      映像情報メディア学会 コンシューマエレクトロニクス研究会
    • Place of Presentation
      北海道大学
    • Year and Date
      2017-02-20
    • Related Report
      2016 Research-status Report
  • [Presentation] Improving Performance of Dual-Polarized MIMO Ultra-Multilevel OFDM Under Mobile Reception2017

    • Author(s)
      Hiroaki Otsubo,Akira Nakamura,Makoto Itami
    • Organizer
      ICCE2017
    • Place of Presentation
      Las Vegas Convention Center
    • Year and Date
      2017-01-08
    • Related Report
      2016 Research-status Report
  • [Presentation] A study on LLR calculation scheme under mobile reception of OFDM2017

    • Author(s)
      Akira Nakamura, Makoto Itami
    • Organizer
      ICCE2018
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Performance evaluation of dual-polarized MIMO ultra-multilevel OFDM using NU-QAM under mobile reception2017

    • Author(s)
      Hiroaki Otsubo, Akira Nakamura, Makoto Itami
    • Organizer
      ICCE2018
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 移動受信環境下におけるMMSE型偏波MIMO-ICIキャンセラの特性評価2017

    • Author(s)
      大坪弘明,中村 聡,伊丹 誠
    • Organizer
      放送技術研究会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 地上波デジタル放送における誤り訂正符号を用いた繰り返し復調型ICIキャンセラ2016

    • Author(s)
      青木孝太,中村聡,大野光平,伊丹誠
    • Organizer
      映像情報メディア学会冬季大会
    • Place of Presentation
      東京理科大学 森戸記念館
    • Year and Date
      2016-12-21
    • Related Report
      2016 Research-status Report
  • [Presentation] OFDM伝送における繰り返し復調型ICIキャンセラ2016

    • Author(s)
      中村聡,大野光平,伊丹誠
    • Organizer
      電子情報通信学会・総合大会
    • Place of Presentation
      福岡県福岡市 九州大学伊都キャンパス
    • Year and Date
      2016-03-15
    • Related Report
      2015 Research-status Report
  • [Presentation] 移動受信環境下における偏波MIMO-超多値OFDMの特性改善に関する研究2016

    • Author(s)
      大坪弘明,中村聡,伊丹誠
    • Organizer
      映像情報メディア学会・放送技術研究会
    • Place of Presentation
      北海道小樽市 かんぽの宿小樽
    • Year and Date
      2016-02-18
    • Related Report
      2015 Research-status Report
  • [Presentation] Improving of Channel Estimation Scheme in Mobile Reception of OFDM2016

    • Author(s)
      Akira NAKAMURA, Kohei OHNO, Makoto ITAMI
    • Organizer
      IEEE International Conference on Consumer Electronics 2016
    • Place of Presentation
      Convention Center, Las Vegas, NV, USA
    • Year and Date
      2016-01-07
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] A Study on ICI Canceller using Iterative Detection in ISDB-T2016

    • Author(s)
      Kota AOKI, Akira NAKAMURA, Makoto ITAMI
    • Organizer
      IEEE International Conference on Consumer Electronics 2016
    • Place of Presentation
      Convention Center, Las Vegas, NV, USA
    • Year and Date
      2016-01-07
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research

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Published: 2015-04-16   Modified: 2019-03-29  

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