VLSI architecture of a K-best detector for MIMO--OFDM wireless communication systems

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	VLSI architecture of a K-best detector for MIMO--OFDM wireless communication systems
	Jian Haifang
刊名	半导体学报
	2009
卷号	30 期号:7 页码:94-97
中文摘要	the k-best detector is considered as a promising technique in the mimo-ofdm detection because of its good performance and low complexity. in this paper, a new k-best vlsi architecture is presented. in the proposed architecture, the metric computation units (mcus) expand each surviving path only to its partial branches, based on the novel expansion scheme, which can predetermine the branches' ascending order by their local distances. then a distributed sorter sorts out the new k surviving paths from the expanded branches in pipelines. compared to the conventional k-best scheme, the proposed architecture can approximately reduce fundamental operations by 50% and 75% for the 16-qam and the 64-qam cases, respectively, and, consequently, lower the demand on the hardware resource significantly. simulation results prove that the proposed architecture can achieve a performance very similar to conventional k-best detectors. hence, it is an efficient solution to the k-best detector's vlsi implementation for high-throughput mimo-ofdm systems.
英文摘要	the k-best detector is considered as a promising technique in the mimo-ofdm detection because of its good performance and low complexity. in this paper, a new k-best vlsi architecture is presented. in the proposed architecture, the metric computation units (mcus) expand each surviving path only to its partial branches, based on the novel expansion scheme, which can predetermine the branches' ascending order by their local distances. then a distributed sorter sorts out the new k surviving paths from the expanded branches in pipelines. compared to the conventional k-best scheme, the proposed architecture can approximately reduce fundamental operations by 50% and 75% for the 16-qam and the 64-qam cases, respectively, and, consequently, lower the demand on the hardware resource significantly. simulation results prove that the proposed architecture can achieve a performance very similar to conventional k-best detectors. hence, it is an efficient solution to the k-best detector's vlsi implementation for high-throughput mimo-ofdm systems.; 于2010-11-23批量导入; zhangdi于2010-11-23 12:59:58导入数据到semi-ir的ir; made available in dspace on 2010-11-23t04:59:58z (gmt). no. of bitstreams: 1 3678.pdf: 1228456 bytes, checksum: b2ab7a5d2df47605b077c81e0673b801 (md5) previous issue date: 2009; institute of semiconductors, chinese academy of sciences
学科主题	人工智能
收录类别	CSCD
语种	英语
公开日期	2010-11-23 ; 2011-04-28
内容类型	期刊论文
源URL	[http://ir.semi.ac.cn/handle/172111/15737]
专题	半导体研究所_中国科学院半导体研究所（2009年前）
推荐引用方式 GB/T 7714	Jian Haifang. VLSI architecture of a K-best detector for MIMO--OFDM wireless communication systems[J]. 半导体学报,2009,30(7):94-97.
APA	Jian Haifang.(2009).VLSI architecture of a K-best detector for MIMO--OFDM wireless communication systems.半导体学报,30(7),94-97.
MLA	Jian Haifang."VLSI architecture of a K-best detector for MIMO--OFDM wireless communication systems".半导体学报 30.7(2009):94-97.