Carrier Frequency Offset Compensation in OFDM Direct-Conversion Receivers

2009 Fiscal Year Final Research Report

• Project/Area Number: 20760243
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Communication/Network engineering
• Research Institution: Osaka Prefecture University
• Principal Investigator: LIN Hai Osaka Prefecture University, 工学研究科, 助教 (40336805)
• Project Period (FY): 2008 – 2009
• Keywords: ダイレクトコンバージョン受信機 / OFDM / キャリア同期ずれ

Research Abstract

In direct-conversion receivers(DCR), I/Q imbalance has been known as a major analog impairment. This project focuses on the joint compensation of CFO and I/Q imbalance in low-cost OFDM/MIMO-OFDM DCR. A low-complexity compensation algorithm and the associated generalized periodic pilot have been proposed. Furthermore, the propose compensation algorithm has been extended to work with the conventional periodic pilot in the existing wireless standard.

Research Products

• [Journal Article] Independent component analysis based semi-blind I/Q imbalance compensation for MIMO OFDM systems (2010)
  • Author(s): J. Gao, X. Zhu, H. Lin, A. Nandi
  • Journal Title: IEEE Trans. Wireless Communications 9 Pages: 914-920
  • Peer Reviewed
• [Journal Article] Low complexity pilot-aided compensation for carrier frequency offset and I/Q imbalance (2010)
  • Author(s): H. Lin, X. Zhu, K. Yamashita
  • Journal Title: IEEE Trans. Communications 58 Pages: 448-452
  • Peer Reviewed
• [Journal Article] Joint estimation of carrier frequency offset and I/Q imbalance in the presence of time-varying DC offset (2010)
  • Author(s): U. Yunus, H. Lin, K. Yamashita
  • Journal Title: IEICE Trans. Communications E93-B Pages: 16-21
  • Peer Reviewed
• [Journal Article] A robust frequency offset estimator in the presence of time-varying DC offset (2009)
  • Author(s): U. Yunus, H. Lin, K. Yamashita
  • Journal Title: IEICE Trans. Communications E92-B Pages: 3288-3296
  • Peer Reviewed
• [Journal Article] Subcarrier allocation based compensation for carrier frequency offset and I/Q imbalances in OFDM systems (2009)
  • Author(s): H. Lin, K. Yamashita
  • Journal Title: IEEE Trans. Wireless Communications 8 Pages: 18-23
  • Peer Reviewed
• [Journal Article] On the estimation of carrier frequency offset and DC offset for OFDM systems (2008)
  • Author(s): H. Lin, T. Nakao, W. Lu, K. Yamashita
  • Journal Title: IEICE Trans. Communications E91-B Pages: 3288-3296
  • Peer Reviewed
• [Journal Article] A low-complexity carrier frequency offset estimator independent of DC offset (2008)
  • Author(s): H. Lin, X. Wang, K. Yamashita
  • Journal Title: IEEE Communications Letters 12 Pages: 704-707
  • Peer Reviewed
• [Presentation] Kalman filtering based compensation fro I/Q imbalance and CFO in time-varying MIMO OFDM systems (2009)
  • Author(s): H. Lin
  • Organizer: IEEE Global Communications Conference
  • Place of Presentation: Hawaii, USA
  • Year and Date: 2009-12-02
• [Presentation] I/Q imbalance compensation using independent component analysis in MIMO OFDM systems (2009)
  • Author(s): J. Gao, Blind
  • Organizer: IEEE Wireless Communications & Networking Conference
  • Place of Presentation: Budapest, Hungary
  • Year and Date: 2009-04-08
• [Presentation] Hybrid domain compensation for analog impairments in OFDM systems (2008)
  • Author(s): H. Lin
  • Organizer: IEEE Global Communications Conference
  • Place of Presentation: New Orleans, USA
  • Year and Date: 2008-12-01
• [Presentation] Pilot-aided low-complexity CFO and I/Q imbalance compensation for OFDM systems (2008)
  • Author(s): H. Lin
  • Organizer: IEEE International Conference on Communications
  • Place of Presentation: Beijing, China
  • Year and Date: 2008-05-22
• [Patent(Industrial Property Rights)] OFDMシステムにおけるアナログ損失のハイブリッドドメイン補償方法 (2008)
  • Inventor(s): 林海、下勝己
  • Industrial Property Rights Holder: 大阪府立大学
  • Industrial Property Number: 特許・権特願2008-282640
  • Filing Date: 2008-11-01