一种高效的V-BLAST最大似然检测算法

journal6 ›› 2007, Vol. 28 ›› Issue (1): 77-80.

一种高效的V-BLAST最大似然检测算法

（北京邮电大学光通信与光波技术教育部重点实验室，北京 100876 ）

出版日期:2007-01-25 发布日期:2012-06-19
作者简介:李卫(1970-),男，河北青县人，北京邮电大学电磁场与微波技术专业博士，主要从事空时信号处理、阵列天线技术研究.
基金资助:
国家自然科学基金资助项目(60372100)；北京邮电大学博士点基金资助项目(20030013004)

Efficient ML Detection Algorithm for V-BLAST System

(Key Lab of Optical Communication & Light Wave Technologies Ministry of Education,Beijing University of Posts and Telecommunications,Beijing 100876,China)

Online:2007-01-25 Published:2012-06-19

摘要/Abstract

摘要：垂直分层空时码(V-BLAST)是贝尔实验室提出的一种多发射多接收天线(MIMO)结构无线通信系统，该系统具备较高频谱利用率和易于实现的特点.在V-BLAST检测算法中，最大似然算法有最好的检测性能，但它的算法复杂度最高.笔者提出了一种高效的V-BLAST最大似然检测算法，此算法在保证较高的检测性能的前提下大大减小了算法复杂度.

关键词： 垂直分层空时码, 最大似然检测, MIMO系统

Abstract: Vertical Bell-laboratories Space-Time (V-BLAST) is a multiple transmit and multiple receiving antennas (MIMO) wireless systems.V-BLAST attains very high spectral efficiency while maintains low implementation complexity.Among the detection algorithms of V-BLAST maximum likelihood (ML) detection scheme performs the best;however,its complexity is excessively high.An efficient ML detection algorithm is proposed in this paper.According to simulation results,the proposed scheme has better bit error rate (BER) performance with significant reduction in the computational complexity.

Key words: V-BLAST；maximum likelihood (ML) detection, MIMO system

李卫, 张小频, 叶培大. 一种高效的V-BLAST最大似然检测算法[J]. journal6, 2007, 28(1): 77-80.

LI Wei, ZHANG Xiao-Pin, YE Pei-Da. Efficient ML Detection Algorithm for V-BLAST System[J]. journal6, 2007, 28(1): 77-80.

参考文献

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[5] GOLDEN G D,FOSCHINI C J,VALENZUELA R A,et al.Detection Algorithm and Initial Laboratory Results Using V-BLAST Space-Time Communication Rrchitecture [J].Electronics Letters,7th 1999，35(1)：14-16.

[6] SHEN Cong,ZHANG Hai-run,DAI Lin,et al.Detection Algorithm Improving V-BLAST Performance Over Error Propagation [J].Electronics Letters,2003,39(6):1 007-1 008.

[7] LI Xiao-dong,HUANG H C,LOZANO A,et al.Reduced-Complexity Detection Algorithms for System Using Multi-Element Arrays [A].Proc. IEEE Global Communications Conference 2000 [C].San Francisco:CA,2000.1 072-1 076.

[8] CHOI W J,NEGI R，CIOFFI J M.Combined ML and DFE Decoding for the V-BLAST System [A].Proc. IEEE International Conference on Communications 2000 [C].New Orleans:LA,2000.1 243-1 248.

[9] CHOI W J,CHEONG K W，CIOFFI J M.Iterative Soft Interference Cancellation for Multiple Antenna Systems [A].Proc. IEEE Wireless Communications and Networking Conference 2000 [C].Chicago:IL,2000.304-309.

[10] HASSIBI B.An Efficient Square-Root Algorithm for blast [A].IEEE Intl.Conf.Acoustic Speech.Signal Processing [C].Istanbul:Turkey，2000.5-9.

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