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Asymptotic SEP of MIMO beamforming in two-hop AF relaying systems |
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| Authors: | FU YouHua HAN YuJie YANG LvXi ZHU WeiPing & LIU Chen |
| Affiliation: | 1School of Electronic Science and Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210003,China;2School of Information Science and Engineering,Southeast University,Nanjing 210096,China;3Department of Electrical and Computer Engineering,Concordia University,Montreal H3G 1M8,Canada |
| Abstract: | This paper derives an asymptotic average symbol error probability(SEP)expression for multiple-input 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. |
| Keywords: | MIMO relay networks optimal beamforming symbol error probability(SEP) diversity order |
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