Optimal Beamformer Design for Dual-Hop MIMO AF Relay Networks over Rayleigh Fading Channels

被引：49

作者：

Li, Min ^{[1
,2
]}

Lin, Min ^{[3
]}

Yu, Quan ^{[1
,2
]}

Zhu, Wei-Ping ^{[4
]}

Dong, Lei ^{[5
]}

机构：

[1] PLA Univ Sci & Technol, Inst Commun Engn, Nanjing 210007, Jiangsu, Peoples R China

[2] Inst China Elect Syst Engn Corp, Beijing 100141, Peoples R China

[3] Nanjing Inst Telecommun Technol, Nanjing 210007, Jiangsu, Peoples R China

[4] Concordia Univ, Dept Elect & Comp Engn, Montreal, PQ H3G 1M8, Canada

[5] Xidian Univ, State Key Lab Integrated Serv Network, Xian 710071, Peoples R China

来源：

IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS | 2012年 / 30卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Relay network; multiple-input multiple-output (MIMO); beamforming (BF); performance analysis; PERFORMANCE ANALYSIS; ERROR-PROBABILITY; AMPLIFY; SYSTEMS; DIVERSITY;

D O I：

10.1109/JSAC.2012.120910

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, a dual-hop multiple-input multiple-output (MIMO) amplify-and-forward (AF) relay network, where the source, relay and destination are each equipped with multiple antennas, is studied. By deriving and maximizing the receive signal-to-noise ratio (SNR) at the destination, we first obtain the optimal beamforming (BF) weights for the relay network. In order to evaluate the performance of the relay network, we then investigate the outage probability (OP), probability density function (PDF) and moments of the receive SNR as well as the ergodic capacity of the system in a closed-form. Furthermore, the average symbol error rate (ASER) expression of the relay network with the optimal transmit-receive BF is derived for three commonly used modulation formats, namely, M-ary pulse amplitude modulation (M-PAM), M-ary phase shift keying (MPSK), and M-ary quadrature amplitude modulation (M-QAM). Finally, computer simulations are conducted to demonstrate the validity and efficacy of the designed MIMO relay network and its performance analysis.

引用

页码：1402 / 1414

页数：13

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