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Semi-blind channel estimation algorithm for OFDM system with space-time coding

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2 Author(s)
Jianming Wang ; Nat. Mobile Commun. Res. Lab., Southeast Univ., Nanjing, China ; Chunming Zhao

Channel state information should usually be known in the receiver when maximum-likelihood detection algorithm is used in OFDM system with space-time coding. We proposed a semi-blind channel estimation algorithm in this paper. The channel is first estimated based on sub-space method blindly to a scale ambiguity. Then a small amount of training is used to eliminating the ambiguity. Simulation results demonstrate that the semi-blind algorithm can achieve higher spectral efficiency than conventional training-based algorithm.

Published in:

Neural Networks and Signal Processing, 2003. Proceedings of the 2003 International Conference on  (Volume:1 )

Date of Conference:

14-17 Dec. 2003