A V-BLAST System Using Modulation Set Selection for Reduced-Complexity Tree Searching in the QRD-M Algorithm(Transmission Systems and Transmission Equipment for Communications)
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概要
- 論文の詳細を見る
This letter presents a new vertical Bell Labs layered space-time (V-BLAST) transmission scheme for developing low-complexity tree searching in the QRD-M algorithm. In the new V-BLAST system, we assign modulation scheme in ascending order from top to bottom tree branches. The modulation set to be assigned is decided by two criteria: minimum performance loss and maximum complexity reduction. We also propose an open-loop power allocation algorithm to surmount the performance loss. Numerical results show that the proposed V-BLAST transmission approach can significantly reduce the computational loads of the QRD-M algorithm with a slight performance degradation.
- 社団法人電子情報通信学会の論文
- 2007-12-01
著者
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Kang Joonhyuk
Information And Communications Univ. Daejeon Kor
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Kang Joonhyuk
Information And Communications University (icu)
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KIM Hyounkuk
Information and Communications University (ICU)
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JEON Kihwan
Information and Communications University (ICU)
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PARK Hyuncheol
Information and Communications University (ICU)
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Kim Hyounkuk
Information And Communications Univ. (icu) Daejeon Kor
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Park Hyuncheol
Information And Communications Univ. (icu) Daejeon Kor
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