Improved Blind Decodings of STBC with Unknown and Known Channel Correlation to Transmitter(Wireless Communication Technologies)
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概要
- 論文の詳細を見る
The subspace algorithm can be utilized for the blind detection of space-time block codes (STBC) without knowledge of channel state information (CSI) both at the transmitter and receiver. However, its performance degrades when the channels are correlated. In this letter, we analyze the impact of channel correlation from the orthogonality loss between the transmit signal subspace (TSS) and the statistical noise subspace (SNS). Based on the decoding property of the subspace algorithm, we propose a revised detection in favor of the channel correlation matrix (CCM) only known to the receiver. Then, a joint transmit-receive preprocessing scheme is derived to obtain a further performance improvement when the CCM is available both at the transmitter and receiver. Analysis and simulation results indicate that the proposed methods can significantly improve the blind detection performance of STBC over the correlated channels.
- 社団法人電子情報通信学会の論文
- 2007-07-01
著者
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ZHANG Jing
Department of Pharmacology, School of Pharmacy, Second Military Medical University
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ZHANG Taiyi
Department of Information and Communication Engineering, Xian Jiaotong University
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Zhang Taiyi
Department Of Information And Communication Engineering Xi'an Jiaotong University
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Gong Zhengwei
Department Of Information And Communication Engineering Xi'an Jiaotong University
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Zhang Jing
Department Of Information And Communication Engineering Xi'an Jiaotong University
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Zhang Jing
Department Of Anatomy Histology & Embryology School Of Basic Medical Sciences Peking University
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ZHANG Taiyi
Department of Information and Communication Engineering, Xi'an Jiaotong University
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