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Volume 29 Issue 1
Jan.  2011
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Bai Bin-feng, Cai Yue-ming, Xu Xin. A Joint WLMS Channel Estimation and Detection Algorithm Based on Turbo Iteration in OFDM Systems[J]. Journal of Electronics & Information Technology, 2007, 29(1): 152-156. doi: 10.3724/SP.J.1146.2005.00280
Citation: Bai Bin-feng, Cai Yue-ming, Xu Xin. A Joint WLMS Channel Estimation and Detection Algorithm Based on Turbo Iteration in OFDM Systems[J]. Journal of Electronics & Information Technology, 2007, 29(1): 152-156. doi: 10.3724/SP.J.1146.2005.00280

A Joint WLMS Channel Estimation and Detection Algorithm Based on Turbo Iteration in OFDM Systems

doi: 10.3724/SP.J.1146.2005.00280
  • Received Date: 2005-03-14
  • Rev Recd Date: 2005-09-07
  • Publish Date: 2007-01-19
  • A joint WLMS channel estimation and detection algorithm based Turbo iteration is proposed in this paper. Using the soft information provided by the soft mapping and demapping algorithms, the proposed algorithm achieve its information exchange between detection module and channel estimation module. The channel response is updated symbol by symbol by using the WLMS channel estimation and tracking algorithm. The simulation results show that the BER performance had converged after two iterative, and there is only 0.4-0.5dB performance losing compared with ideal channel estimation at a system BER of 10-3.
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