Reduced-Complexity Stack-Based Iterative Detection for V-BLAST Systems(Wireless Communication Technologies)
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概要
- 論文の詳細を見る
In this paper, a computationally efficient stack-based iterative detection algorithm is proposed for V-BLAST systems. To minimize the receiver's efforts as much as possible, the proposed scheme employs iterative tree search for complexity reduction and storage saving. After an M-ary tree structure by QR decomposition of channel matrix is constructed, the full tree depth is divided into the first depth and the remaining ones. At tree depth of one, the proposed algorithm finds M candidate symbols. Based on these symbols, it iteratively searches the remaining symbols at second-to-last depth, until finding an optimal symbol sequence. Simulation results demonstrate that the proposed algorithm yields the performance close to that of sphere detection (SD) with significant saving in complexity and storage.
- 社団法人電子情報通信学会の論文
- 2007-10-01
著者
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Kang Joonhyuk
Information And Communications Univ. Daejeon Kor
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Kang Joonhyuk
School Of Engineering Information And Communications University
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Kang Joonhyuk
School Of Engineering At Information And Communications University
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CHA Jongsub
School of Engineering, Information and Communications University
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Cha Jongsub
School Of Engineering Information And Communications University
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Lee Keonkook
Korea Advanced Inst. Of Sci. And Technol. Daejeon Kor
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LEE Keonkook
School of Engineering, Information and Communications University
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