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双选择性信道条件下OFDM系统的频域Turbo均衡

杨炜伟 蔡跃明

杨炜伟, 蔡跃明. 双选择性信道条件下OFDM系统的频域Turbo均衡[J]. 电子与信息学报, 2007, 29(5): 1150-1154. doi: 10.3724/SP.J.1146.2005.00807
引用本文: 杨炜伟, 蔡跃明. 双选择性信道条件下OFDM系统的频域Turbo均衡[J]. 电子与信息学报, 2007, 29(5): 1150-1154. doi: 10.3724/SP.J.1146.2005.00807
Yang Wei-wei, Cai Yue-ming. Frequency-domain Turbo Equalization for OFDM Systems Over Doubly-Selective Channels[J]. Journal of Electronics & Information Technology, 2007, 29(5): 1150-1154. doi: 10.3724/SP.J.1146.2005.00807
Citation: Yang Wei-wei, Cai Yue-ming. Frequency-domain Turbo Equalization for OFDM Systems Over Doubly-Selective Channels[J]. Journal of Electronics & Information Technology, 2007, 29(5): 1150-1154. doi: 10.3724/SP.J.1146.2005.00807

双选择性信道条件下OFDM系统的频域Turbo均衡

doi: 10.3724/SP.J.1146.2005.00807
基金项目: 

江苏省自然科学基金(BK2003015)和东南大学移动通信国家重点实验室开放研究基金(N200601)资助课题

Frequency-domain Turbo Equalization for OFDM Systems Over Doubly-Selective Channels

  • 摘要: 未来OFDM系统将工作在高载频、高容量、高移动速率的条件下,传统的单抽头频域均衡器将不再适用。该文基于双选择性信道的ICI分析,提出了一种用于OFDM系统的频域Turbo均衡(Frequency-domain Turbo Equalization, FTE)算法。仿真表明该算法具有BER性能好,计算复杂度低的优点,能够很好地抑制ICI。
  • [1] CHoi Y S, Voltz P J, and F A. Cassara. On channel estimation and detection for mutlicarrier signals in fast and selective Rayleigh fading channels. IEEE Trans. on Commun., 2001, 49(4):1375-1387. [2] Stamoulis, Diggavi S N, and Al-Dhahir N. Intercarrier interference in MIMO OFDM[J].IEEE Trans. on Signal Processing.2002, 50(6):2451-2464 [3] Linnartz J P M G and Gorokhov A. New equalization approach for OFDM over dispersive and rapidly time varying channel. in Proc.IEEE Int. Symposium Personal Indoor Mobile Radio Commun., London, 2000,vol.2: 1375-1379. [4] Schniter P. Low-complexity equalization of OFDM in doubly selective channels[J].IEEE Trans. on Signal Processing.2004, 52(4):1002-1011 [5] Tuchler M, Koetter R, and Singer AC. Turbo equalization: Principles and new results[J].IEEE Trans. on Communication.2002, 50(5):754-767 [6] Tuchler M, Singer A, and Koetter R. Minimum mean squared error equalization using a priori information[J].IEEE Trans. on Signal Processing.2002, 50(3):673-683 [7] Qu Daiming, Zhu Guangxi, and Chen Zhonglin. Low complexity LMMSE Turbo equalization for linearly Precoded OFDM. The 14th IEEE 2003 International Symposium on Personal, Indoor and Mobile Radio Communication Proceedings, Helsinki, 2003: 819-823. [8] Zhou S, Wang Z, Bapat N, and Giannakis G B.Turbo decoding of error control coded and unitary precoded OFDM. In Proc. Veh. Technol. Conf., IEEE VTC 2002/Spring, Birmingham, 2002, vol.3: 1237-1241. [9] Jakes W C. Microwave Mobile Communcations.New York: Wiley, 1974: 32-35. [10] Jeon W G, Chang K H, and Cho Y S. An equalization technique for orthogonal frequency-division multiplexing systems in time-variant multipath channels[J].IEEE Trans. on Commun.1999, 47(1):27-32
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  • 被引次数: 0
出版历程
  • 收稿日期:  2005-07-07
  • 修回日期:  2007-01-22
  • 刊出日期:  2007-05-19

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