Research on Signal Distortion Compensation Schemes in a Direct Conversion Receiver

• Project/Area Number: 18760281
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Communication/Network engineering
• Research Institution: Keio University
• Principal Investigator: SANADA Yukitoshi Keio University, 理工学部, 准教授 (90293042)
• Project Period (FY): 2006 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥3,730,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥330,000); Fiscal Year 2008: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2007: ¥1,100,000 (Direct Cost: ¥1,100,000); Fiscal Year 2006: ¥1,200,000 (Direct Cost: ¥1,200,000)
• Keywords: 変復調 / OFDM / ダイレクトコンバージョン / DCオフセット / 周波数オフセット / IQインバランス / ダイレクトコンバージョン受信機 / 時間領域補正 / 周波数領域補正 / サンプリングシック / チャージサンプリング / 電圧サンプリング / SIR / SINR / UWB / ウルトラワイドバンド / 周波数ダイバーシチ

Research Abstract

次世代の移動体通信の変復調方式として直交周波数分割多重(OFDM)の採用が見込まれている.他方端末における受信機構成としてダイレクトコンバージョン受信方式が有望である.しかし,ダイレクトコンバージョン受信方式は受信信号がアナログ回路の歪みの影響を受ける.本研究ではダイレクトコンバージョンOFDM受信機のアナログ回路で発生する歪みを,ディジタル信号処理を用いて補正する方式を検討した.そして広帯域信号の受信が可能であることを示した.

Research Products

• [Journal Article] Influence of Timing Jitter on Quadorature Charge Sampling (2007)
  • Author(s): M. Inamori, A. M. Bostaman, and Y. Sanada
  • Journal Title: IET Communications 1 Pages: 705-710
  • Peer Reviewed
• [Journal Article] Influence of Timing Jitter on Quadorature Charge Sampling (2007)
  • Author(s): M. Inamori, A. M. Bos taman, and Y. Sanada
  • Journal Title: IET Communications 1 Pages: 705-710
  • Peer Reviewed
• [Journal Article] IQ Imbalance Compensation Scheme for MB-OFDM with Transmit Diversity (2006)
  • Author(s): Y. Kato, T. Ikuno, and Y. Sanada
  • Journal Title: IEICE Transactions on Fundamentals E89-A Pages: 3066-3074
  • Peer Reviewed
• [Journal Article] IQ Imbalance Compensation Scheme for MB-OFDM with Transmit Diversity (2006)
  • Author(s): Y.Kato, T.Ikuno, Y.Sanada
  • Journal Title: IEICE Transactions on Fundamentals E89-A・11 Pages: 3066-3074
• [Journal Article] IQ Imbalance Compensation Scheme for MB-OFDM with Transmit Diversity (2006)
  • Author(s): Y.Kato, T.Ikuno, Y.Sanada
  • Journal Title: Proc. of International Conference on Ultra Wideband 2006 Pages: 293-298
• [Presentation] Experimental Investigation of Fractional Sampling in IEEE802.11a WLAN System (2008)
  • Author(s): T. Shinkai, H. Nishimura, M.Inamori, and Y. Sanada
  • Organizer: The Eleventh IEEE International Conference on Communications Systems
  • Place of Presentation: Guangzhou, China
  • Year and Date: 2008-11-20
• [Presentation] Experimental Investigation of Fractional Sampling in IEEE802.11a WLAN System (2008)
  • Author(s): T. Shinkai, H. Nishimura, M. Inamori, and Y. Sanada
  • Organizer: The Eleventh IEEE International Con ference on Communications Systems
  • Place of Presentation: Guangzhou, Chaina
  • Year and Date: 2008-11-20
• [Presentation] Multipath Diversity Through Fractional Sampling in MB-OFDM (2008)
  • Author(s): Y. Kato, M. Inamori, and Y. Sanada
  • Organizer: The 5th IEEE VTS Asia Pacific Wireless Communications Symposium
  • Place of Presentation: Sendai, Japan
  • Year and Date: 2008-08-20
• [Presentation] IEEE802.11aにおけるFractional Samplingの実験的検討 (2008)
  • Author(s): 新開隼也,西村晴輝,稲森真美子,眞田幸俊
  • Organizer: 電子情報通信学会ソフトウェア無線研究会
  • Place of Presentation: 小金井
  • Year and Date: 2008-07-31
• [Presentation] al Sampling OFDM/OQAM-IOTA on Multipath Channel With Long Delay Spread (2007)
  • Author(s): T. Tamura and Y. Sanada
  • Organizer: IEEE Pacific Rim Conference on Communications, Computers and Signal Processing
  • Place of Presentation: Victoria, Canada
  • Year and Date: 2007-08-24
• [Presentation] Fractional Sampling OFDM/OQAM-IOTA on Multipa th Channel With Long Delay Spread (2007)
  • Author(s): T. Tamura and Y. San ada
  • Organizer: IEEE Pacific Rim Conference on Communications, Computers and Signal Processing
  • Place of Presentation: Victoria, Canada
  • Year and Date: 2007-08-24
• [Presentation] IQ Imbalance Compensation Scheme for MB-OFDM with Transmit Diversity (2006)
  • Author(s): Y. Kato, T. Ikuno, and Y. Sanada
  • Organizer: the 2006 IEEE International Conference on Ultra Wideband
  • Place of Presentation: Waltham, USA
  • Year and Date: 2006-09-26
• [Remarks]
  • URL: http://www.snd.elec.keio.ac.jp