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Channel Modeling and Design of Adaptive Space-Time Signal Processing System for High-speed Digital Mobile Communications

Research Project

Project/Area Number 09450150
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 情報通信工学
Research InstitutionTOKYO INSTITUTE OF TECHNOLOGY

Principal Investigator

ARAKI Kiyomichi  Tokyo Inst.of Tech.Faculty of Engineering Professor, 工学部, 教授 (90016668)

Co-Investigator(Kenkyū-buntansha) SANADA Yukitoshi  Tokyo Inst.of Tech.Faculty. of Engineering Research Associate, 工学部, 助手 (90293042)
TAKADA Jun-ichi  Tokyo Inst.of Tech.Inter.Coop.Center for Science & Technology Assistant Professo, 理工学国際交流センター, 助教授 (90222083)
ANDOU Makoto  Tokyo Inst.of Tech.Faculty of Engineering Professor, 工学部, 教授 (90159533)
SUZUKI Hiroshi  Tokyo Inst.of Tech.Inter.Coop.Center for Science & Technology Professor, 理工学国際交流センター, 教授 (00282864)
Project Period (FY) 1997 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥7,300,000 (Direct Cost: ¥7,300,000)
Fiscal Year 1998: ¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1997: ¥5,100,000 (Direct Cost: ¥5,100,000)
KeywordsHigh-speed Digital Communications / Channel Modeling / Space-Time Signal Processing / Adaptive Signal Processing / Super-resolution Technique / Delay Time Estimation / DOA Estimation / DSP / 移動体通信 / 伝搬モデル / 超解像手法 / 遅延プロファイル / フェージング
Research Abstract

With an explosive growth of mobile communications, we are facing with a problem of shortage of frequency spectrum and capacity. Moreover there is a growing need for multi-media communications including picture and video transmission. It is therefore strongly desired to construct an accurate channel modeling in order to establish the high-speed digital mobile communication systems, and also to make a measuring system for channel characteristics at microwave frequency band.
In this study, we constructed the measurement systems for channel characteristics in both space and time domain from the view point of high-speed digital mobile communications. At first we made an off-Line measurement system, and then tried to make an on-line system based on DSP's. Specifically, we succeeded to develop a multi-dimensional estimation scheme capable to estimate DOA, DOT and Signal Power level simultaneously under the condition of limited number of array antennas and measuring frequency. We developed a novel type co estimation algorithm by means of neural network and convex programming technique.
Furthermore we proposed several types of adaptive signal processing systems by using the above mentioned results. Main achievements are the array signal processing by using a multi-carrier transmission scheme, the relationship of diversity technique and beam forming technique, the novel precoding techniques utilizing DOA and DOT information and the multi-dimensional ESPRIT.Combined array signal processing are a promising technique for the improvement of transmission quality i.e. fast tracking and packet through rate.

Report

(3 results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report
  • Research Products

    (47 results)

All Other

All Publications (47 results)

  • [Publications] Kei Sakaguchi: "On Measuring the Delay Profile and the Direction of Arrial by Using Super Resolution Algorithm" 1998 IEEE Vehicular Technology Conference. 154-158 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Jun-ichi Takada: "A Superresolution Spatio-Temporal Channel Sounder for Future Microwae Mobile Communication System Development" 1998 IEEE Asia-Pacific Conference on Circuits and Systems. 101-104 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Jung Sik Jeong: "A Neural Network for Direction of Arrival Estimation under Coherent Multiple Waves" 1998 IEEE Asia-Pacific Conference on Circuits and Systems. 495-498 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kei Sakaguchi: "Influence of the Model Order Estimation Error in the ESPRIT based High Resolution Techniques" IEICE Transactions on Communications. 載録予定.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 阪口 啓: "MUSIC法を用いた多重波伝搬環境における到来方向推定法" 1997年電子情報通信学会通信ソサエティ大会. B-1-9 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 阪口 啓: "ESPRIT法を用いた多重波パラメータの推定法" 電子情報通信学会技術研究報告. AP97-151 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 阿部 徳生: "レイトレース法を用いた時空間チャネルモデルの作成" 電子情報通信学会技術研究報告. AP97-197, RCS97-235 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 阪口 啓: "偏波平均化ESPRIT法を用いた多重波伝搬環境における遅延特性測定法" 1998年電子情報通信学会総合大会. B-1-15 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 岡田 貴宏: "ESPRIT法を用いた遅延プロファイル実測結果とレイトレースシミュレーションとの比較検討" 1998年電子情報通信学会総合大会. B-1-16 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 阪口 啓: "3-D Unitary ESPRIT法を用いた多重波パラメタの測定法" 電子情報通信学会技術研究報告. AP98-35 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 関根 勇樹: "マイクロセルにおける時空間チャネルモデルの作成" 1998年電子情報通信学会通信ソサイエティ大会. B-1-24 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 阪口 啓: "高分解能時空間チャネルサウンディング" 1998年電子情報通信学会通信ソサイエティ大会. B-1-42 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 鄭重植: "アレイ信号処理における最適推定基準に基づいたパラメタ同時推定法" 1999年電子情報通信学会総合大会. B-1-62 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 阪口 啓: "超分解能法における最適スムージング前処理に関する一検討" 1999年電子情報通信学会総合大会. B-1-66 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 須山 聡: "時空間チャネルサウンダ用2次元アレーアンテナにおける相互結合の補償法" 1999年電子情報通信学会総合大会. B-1-70 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 阪口 啓: "屋外マイクロセル環境における到来方向・遅延時間同時推定実験およびその検証" 1999年電子情報通信学会総合大会. B-1-72 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kei Sakaguchi: ""On Measuring the Delay Profile and the Direction of Arrival by Using Super Resolution Algorithm"" 1998 IEEE Vehicular Technology Conference. 154-158 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Jun-ichi Takada: ""A Superresolution Spatio-Temporal Channel Sounder for Future Microwave Mobile Communication System Development"" 1998 IEEE Asia-Pacific Conference on Circuits and Systems. 101-104 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Jung Sik Jeong: ""A Neural Network for Direction of Arrival Estimation under Coherent Multiple Waves"" 1998 IEEE Asia-Pacific Conference on Circuits and Systems. 495-498 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kei Sakaguchi: ""Influence of the Model Order Estimation Error in the ESPRIT based High Resolution Techniques"" IEICE Transactions on Communications. (to be published).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kei Sakaguchi: ""A Technique for Estimating the Direction-of-Arrival in Multipath Environments"" Proceedings of the 1997 IEICE Communications Society Conference. B-1-9 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kei Sakaguchi: ""On the Multipath Parameter Estimation Method by using the ESPRIT Algorithm"" IEICE Technical Report. AP97-151 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Norio Abe: ""Spatial-Temporal Channel Modeling by using the Ray-Tracing Method"" IEICE Technical Report. AP97-197 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kei Sakaguchi: ""Estimation of Power Delay Profile in the Multipath Environment by using ESPRIT algorithm with Polarization Averaging"" Proceedings of the 1998 IEICE General Conference. B-1-15 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Takahiro Okada: ""A Comparative Study of the Delay Profile Measured by Using ESPRIT Algorithm and Simulated by Ray-Tracing"" Proceedings of the 1998 IEICE General Conference. B-1-16 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kei Sakaguchi: ""Multipath parameter estimation by using 3-D Unitary ESPRIT"" IEICE Technical Report. AP98-35 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Yuuki Sekine: ""Development of Spatio-Temporal Channel Modeling in a Microcellular Environment"" Proceedings of the 1998 IEICE Communications Society Conference. B-1-24 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kei Sakaguchi: ""High Resolution Spatial-Temporal Channel Sounding"" Proceedings of the 1998 IEICE Communications Society Conference. B-1-42 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Jung Sik Jeong: ""A Simultaneous Parameters Estimation of Receiving Signals based on Covariance Fit Estimator in Array Signal Processing"" Proceedings of the 1999 IEICE General Conference. B-1-62 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kei Sakaguchi: ""An optimization of smoothing preprocessing for super resolution methods"" Proceedings of the 1999 IEICE General Conference. B-1-66 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Satoshi Suyama: ""A Compensation of Mutual Coupling in 2D Array Antennas for a Spatio-Temporal Channel Sounder"" Proceedings of the 1999 IEICE General Conference. B-1-70 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kei Sakaguchi: ""AOA and TOA estimation in a micro cell environment-Evaluation of measurement results-"" Proceedings of the 1999 IEICE General Conference. B-1-72 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] K.Sakaguchi: "On Measuring the Delay Profile and the Direction of Arrival by Using Super Rcrolution Algorithm" 1998 IEEE Vehicular Technology Conference. 154-158 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] J.Takada: "A Superrceolution Spntio-Tempornl Chnnnel Sounder for Future Microwave Mobile Communication System Development" 1998 IEEE Asia-Pacific Conference on Circuits and Systems. 101-104 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 阿部 徳生: "レイトレース法を用いた時空間チャンネルモデルの作成" 電子情報通信学会技術報告. AP97-197 RCS97-235 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 阪口 啓: "偏波平均化ESPRIT法を用いた多重波伝搬環境における遅延特性測定法" 1998年電子情報通信学会総合大会. B-1-15 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 岡田 貴宏: "ESPRIT法を用いた遅延プロファイル実測結果とレイトレースシミュレーションの比較検討" 1998年電子情報通信学会総合大会. B-1-16 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 阪口 啓: "3-D Unitary ESPRIT法を用いた多重波パラメタの測定法" 電子情報通信学会技術研究報告. AP98-35 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 関根 勇樹: "マイクロセルにおける時空間チャネルモデルの作成" 1998年電子情報通信学会通信ソサイエティ大会. B-1-24 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 阪口 啓: "高分解能時空間チャネルサウンディング" 1998年電子情報通信学会通信ソサイエティ大会. B-1-42 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 阪口 啓: "MUSIC法を用いた多重波伝搬環境における到来方向推定法" 1997年電子情報通信学会通信ソサイエティ大会. B-1-9 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] 阪口 啓: "ESPRIT法を用いた多重波パラメータの推定法" 電子情報通信学会技術報告. AP97-151 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] 島村祐一, 荒木純道, 高田潤一: "4次キュムラントを用いた多重遅延波の遅延時間と到来方向推定法" 電子情報通信学会論文誌. J81-B-II,4. 1-8 (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] Jun-ichi Takada, Hideo Mochida, Kiyomichi Araki: "A BER Floors Simulation for the Indoor Multipath Environment" Proceedings of 1997 International Symposium on Personal,Indoor and Mobile Communications. 145-148 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Shiro Mitomi, Jun-ichi Takada, Kiyomichi Araki: "A study on the Effect of Polarization Diversity Antennes in Digital Mobile Communications System" 1997 Asia-Pacific Microwave Conference. Vol.3. 1181-1184 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Yukitoshi Sanada, Michael Padilla, Kiyomichi Araki: "Performance of Adaptive Array Antennas with Multicarrier DS/COMA in a Mobile Fading Environment" Proceeding of TJCOM98. Vol.1. 95-100 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Jun.Kakishima, Jun-ichi Takada, Kiyomichi Araki: "Direction of Arrival Estimation and Source Recovery of Multiple Signals by using Higher-Ordex Statistics,i.e. Cumulants" Proceeding of TJCOM98. Vol.1. 101-105 (1997)

    • Related Report
      1997 Annual Research Report

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Published: 1997-04-01   Modified: 2021-12-17  

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