吉林大学学报(工学版) ›› 2010, Vol. 40 ›› Issue (06): 1719-1723.

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Novel method on antenna selection for downlink multiuser MIMO systems

GUO Wen-zhuo,ZHANG Shu,REN Da-meng   

  1. College of Information and Communication Engineering,Harbin Engineering University,Harbin 150001,China
  • Received:2008-12-22 Online:2010-11-01 Published:2010-11-01

Abstract:

For a multiuser precoding scheme based on the SignaltoJammingplusNoise Ratio (SJNR) maximization criterion,closedform expressions of its beamforming weights and SJNR are derived.Furthermore,using these analytical expressions,an efficient antenna selection algorithm of high performance and its low complexity version are presented.Simulation results show that,compared with the conventional zeroforcing precoding method,the proposed antenna selection scheme based on the max SJNR criterion,can achieve lower BitError Ratio (BER),and therefore outperforms the zeroforcing method comprehensively.

Key words: communication technology, MIMO, multiuser, antenna selection, downlink

CLC Number: 

  • TN929.53
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