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| Recursive Semi-blind Decoding of a Space-Time Block Code in Frequency-Selective Channel |
| Luo Ming; Yin Qin -ye; Ding Le; Zeng Yan-xing |
| School of Electronics and Information Engineering Xi’an Jiaotong University, Xi’an 710049, China |
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Abstract In the paper, assuming frequency-selective channel, a recursive semi-blind joint equalization and decoding method for Alamouti space-time block code is proposed. Based on subspace-based blind equalization method, the proposed method sequentially decodes Alamouti space-time block code without channel state information by exploiting the structure of the space-time block code and a few pilot symbols. In contrast with previous block-based blind decoding methods, the proposed method is more amicable to allowing tradeoff between performance and complexity. Simulation results demonstrate the effectiveness and flexibility of the proposed method.
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Received: 14 June 2004
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2005, Vol. 27 
