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Volume 27 Issue 9
Sep.  2005
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Zhang Peng, Bi GuangGuo, Cao XiuYing. An Iterative Joint Channel Estimation and Symbol Detection Algorithm Based on Prediction for OFDM Systems[J]. Journal of Electronics & Information Technology, 2005, 27(9): 1437-1440.
Citation: Zhang Peng, Bi GuangGuo, Cao XiuYing. An Iterative Joint Channel Estimation and Symbol Detection Algorithm Based on Prediction for OFDM Systems[J]. Journal of Electronics & Information Technology, 2005, 27(9): 1437-1440.

An Iterative Joint Channel Estimation and Symbol Detection Algorithm Based on Prediction for OFDM Systems

  • Received Date: 2004-07-01
  • Rev Recd Date: 2004-10-15
  • Publish Date: 2005-09-19
  • In this paper, an iterative joint channel-estimation and symbol-detection algorithm based on prediction is presented for orthogonal frequency-division multiplexing systems. Considering the correlation between impulse responses, the prediction method is introduced into the iterative channel estimation. The initial channel value of iterative estimation is predicted in each symbol. Several prediction methods are simulated and compared. The simulation results show that contrasted to the conventional scheme the proposed algorithm improves the convergence capability and system performance dramatically.
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  • Li Ye. Pilot-symbol-aided channel estimation for OFDM in wireless systems[J].IEEE Trans. on Vehicular Technology.2000,49(4):1207-[2]Moreili M, Mengali U. A comparison of pilot-aided channel estimation methods for OFDM systems[J].IEEE Trans. on Signal Processing.2001, 49(12):3065-[3]Edfords O, Sandell M, Van De Beek, Wilson S K, Boriesson P O.OFDM channel estimation by singular value decomposition,IEEE Trans. on Communications, 1998, 46(7): 931 - 939.[4]Edfords O, Sandell M, Van De Beek, et al.. Analysis of DFT-based channel estimators for OFDM[J].Wireless Personal Communications.2000, 12(1):55-[5]Park Seung Young, Kim Yeun Gu, Kang Chung Gu. Iterative receiver for joint detection and channel estimation in OFDM systems under mobile radio channels[J].IEEE Trans. on Vehicular Technology.2004, 53(2):450-[6]Han Bing, Wang Jianming, Gao Xiqi, et al.. An iterative joint channel estimation and symbol detection algorithm for OFDM system[J]. Journal of China Institute of Communications, 2003,24(8): 58 - 64.[7]Han Bing, Gao Xiqi, You Xiaohu, Wang Jianming, Costa E. An iterative joint channel estimation and symbol detection algorithm applied in OFDM system with high data to pilot power ratio.IEEE International Conference on Communications, 11 - 15 May2003, vol.3:2076 - 2080.[8]Hoeher P. A statistical discrete-time model for the WSSUS multipath channel[J].IEEE Trans. on Vehicular Technology.1992,41(4):461-[9]Jacks W C. Microwave Mobile Communications. New York:wiley, 1974, chapterl: 13 - 77.
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