Asymptotic SEP of MIMO beamforming in two-hop AF relaying systems  

作　　者：FU YouHua HAN YuJie YANG LvXi ZHU WeiPing LIU Chen 

机构地区：[1]School of Electronic Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China [2]School of Information Science and Engineering,- Southeast University, Nanjing 210096, China [3]Department of Electrical and Computer Engineering, Concordia University, Montreal H3G 1M8, Canada

出　　处：《Science China(Information Sciences)》2012年第2期377-383,共7页中国科学（信息科学）（英文版）

基　　金：supported by Important National Science&Technology Specific Project of China(Grant Nos.2011ZX03003-001,2011ZX03003-003);National Basic Research Program of China(Grant No.2007CB310603);National Natural Science Foundation of China(Grant Nos.61071089,60872104,61071113);Ph.D.Programs Foundation of Ministry of Education of China(Grant No.20100092110010);China Postdoctoral Science Foundation(Grant No.20110491454)

摘　　要：This paper derives an asymptotic average symbol error probability （SEP） expression for multipleinput multiple-output （MIMO） two-hop amplify-and-forward （AF） relay systems with optimal beamforming. The analysis at high signal-to-noise ratio （SNR） quantifies the diversity order and array gain, which are valid for any antenna numbers of the terminals and arbitrary channel fading models. It is also proved that the system performance is dominated by the relatively degraded one of the two-hop channels. Our results based on the simple expressions provide valuable insights into the performance and practical design considerations of MIMO AF networks.This paper derives an asymptotic average symbol error probability （SEP） expression for multipleinput multiple-output （MIMO） two-hop amplify-and-forward （AF） relay systems with optimal beamforming. The analysis at high signal-to-noise ratio （SNR） quantifies the diversity order and array gain, which are valid for any antenna numbers of the terminals and arbitrary channel fading models. It is also proved that the system performance is dominated by the relatively degraded one of the two-hop channels. Our results based on the simple expressions provide valuable insights into the performance and practical design considerations of MIMO AF networks.

关 键 词：MIMO relay networks optimal beamforming symbol error probability （SEP） diversity order 

分 类 号：TN957.5[电子电信—信号与信息处理] TN929.5[电子电信—信息与通信工程]