A Low Complexity Soft-output QRD-M Algorithm For MIMO-OFDM Systems

被引：0
|
作者：
Jian, Haifang [1 ]
Yi, Yong [1 ]
Cui, Xiuling [2 ]
Shi, Yin [2 ]
机构：
[1] Chinese Acad Sci, Inst Semicond, Beijing 100083, Peoples R China
[2] SmartChip Integrat, Suzhou, Peoples R China
来源：
2010 6TH INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS NETWORKING AND MOBILE COMPUTING (WICOM) | 2010年
关键词：
MIMO-OFDM; QRD-M; Soft-output; Detector;
D O I：
暂无
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, a low-complexity soft-output QRD-M detection algorithm is proposed for high-throughput Multiple-input multiple-output (MIMO) systems. By employing novel expansion and sorting scheme, the proposed algorithm can greatly reduce the numbers of the fundamental operations during the tree search process, especially the comparison operations which play a key role in the QRD-M detector' computational complexity. Furthermore, the proposed algorithm can yield the Log-likelihood ratio (LLR) values of the coded bits without any additional likelihood function or an appropriate constant. Simulation results show that the proposed algorithm can achieve a near-ML detection performance under TGn channel Models.
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页数：5
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