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Volume 29 Issue 8
Jan.  2011
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Li Jing, Peng Hua, Ge Lin-dong. Turbo Equalization and Iterative Channel Estimation for Blind Receiver[J]. Journal of Electronics & Information Technology, 2007, 29(8): 1887-1890. doi: 10.3724/SP.J.1146.2005.01464
Citation: Li Jing, Peng Hua, Ge Lin-dong. Turbo Equalization and Iterative Channel Estimation for Blind Receiver[J]. Journal of Electronics & Information Technology, 2007, 29(8): 1887-1890. doi: 10.3724/SP.J.1146.2005.01464

Turbo Equalization and Iterative Channel Estimation for Blind Receiver

doi: 10.3724/SP.J.1146.2005.01464
  • Received Date: 2005-11-15
  • Rev Recd Date: 2006-07-07
  • Publish Date: 2007-08-19
  • A turbo equalizer is able to overcome severe inter-symbol-interferences because it benefits from the channel decoding gain by iteratively performing equalization and channel decoding. This paper proposes a scheme of turbo equalization and iterative channel estimation for blind receiver. The scheme exploits a conventional blind equalizer to bootstrap the iterative process and thus is independent of training sequence and a priori information of the transmitted symbols. In such a scheme, the initial blind equalization algorithm is critical and should be able to provide enough information for the following turbo equalization and channel estimation even when channel distortion is severe. Based on analysis of characteristics of turbo equalization, the super exponential algorithm is chosen as the initial blind equalization. Simulation results illustrating performance of the proposed scheme are also given.
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  • Douillard C, Picart A, and Didier P, et al.. Iterative correction of intersymbol interference: Turbo-equalization[J].European Trans. on Telecommun.1995, 6(5):507-511[2]Tuchler M, Singer A C, and Kotter R. Minimum mean squared error equalization using a priori information[J].IEEE Trans. on Signal Processing.2002, 50(3):673-683[3]Laot C, Bidan R, and Leroux D. Low complexity MMSE turbo equalization: A possible solution for EDGE[J].IEEE Trans. on Wireless Communications.2005, 4(3):965-974[4]江森,孙洪,李坪. 一种新颖的用于Turbo均衡的均衡器. 通信学报, 2003, 24(12): 9-14.[5]Nefedov N and Pukkila M. Turbo equalization and iterative (turbo) estimation techniques for packet data transmission. Proc. 2nd Int. Symp. on Turbo Codes Related Topics, Brest, France, Sept. 2000: 423-426.[6]Visoz R, Berthet A O, and Saadani A, et al.. Turbo equalization and incremental redundancy for advanced TDMA systems [A]. IEEE VTC 2001, Rhodes Greece, May 2001: 1629-1633.[7]Song S, Singer A C, and Sung K M. Soft input channel estimation for turbo equalization[J].IEEE Trans. on Signal Processing.2004, 52(10):2885-2894[8]Otnes R and Tuchler M. Iterative channel estimation for turbo equalization of time-varying frequency-selective channels[J].IEEE Trans. on Wireless Communications.2004, 3(6):1918-1923[9]Wang X and Chen R. Blind turbo equalization in Gaussian and impulsive noise[J].IEEE Trans. on Vehicular Technology.2001, 50(4):1092-1105[10]李静,彭华,葛临东. 用于turbo均衡的MAP卷积译码算法. 军事通信技术, 2005, 26(3): 1-4.[11]Shalvi O and Weinstein E. Super-exponential methods for blind deconvolution[J].IEEE Trans. on Information Theory.1993, 39(2):504-519[12]Chi C Y.[J].Feng C C, and Chen C Y. Performance of Super- exponential algorithm for blind equalization[A]. IEEE VTC2000-Spring, Tokyo.2000,:-[13]Proakis J G. Digital Communications. New York: McMraw- Hill, 3rd edition, 1995: 616-617.
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