用于克服mimo信道时变性的去相关自举均衡器.pdfVIP

7 Vol.33 No. 7 2005 7 ACTA ELECTRONICA SINICA J ly 2005 MIMO 刘谦雷, 杨绿溪, 衡 伟 ( , 210096) : MIMO . MIMO , , MIMO . MIMO , MIMO . MIMO , , , . , MIMO , . : ; ; MIMO : TN9115 : A : (2005) Decorrelating Bootstrap Equalizer for MIMO Channel TimeVariation Suppression LIU Qianlei, YANG L xi, HENG Wei ( Dep artment of Radio Engineering, Southeast University , Nanj ing , J iangsu 210096, China ) Abstract: This paper proposes a bootstrap eq alizer for MIMO channel timevariation s ppression.The decorrelating eq aliza tion algorithm for MIMO comm nication system is proposed firstly,which realizes the decorrelation of the distinct so rce signals based on the statistics of so rce signals and therefore s ppresses cochannel interference in MIMO system.Then this algorithm is introd ced to the timevarying MIMO system and derives the bootstrap eq alizer for MIMO channel timevariation s ppression,which eq alizesthe timevarying MIMO channel only by its inp ts, and greatly s ppresses the timevariationind ced cochannel interferences in ordinary eq alizer s o tp t and improves the system BER performance at the cost of only a little additional comp tational complexity. Sim lation res lts demonstrate that the proposed decorrelating MIMO bootstrap eq alizer c rbs the infl ence of the channel timevariation and ef fectively improves the BER performance of the receiver. ey words: bootstrap eq alizer; decorrelating eq alization algorithm; timevarying MIMO channel , 1 , ( MIMO) . , ,