期刊名称：International Journal of Electronics Communication and Computer Engineering
印刷版ISSN：2249-071X
电子版ISSN：2278-4209
出版年度：2012
卷号：3
期号：6
页码：1452-1459
出版社：IJECCE
摘要：This paper presents performance analysis of cooperative multiple-input multiple-output (MIMO) relay network system with single-relay. The MIMO scheme is based on Alamouti space time block coding (STBC) over Rayleigh flat fading channels. The source node, equipped with two transmit antennas, simply broadcasts each STB code to the relay and the destination nodes. The relay node, equipped with multiple antennas amplifies-and-forwards (AF) the received STB codes. The destination node applies a maximum ratio combining (MRC) and exploits the diversity gain obtained by the direct and the indirect link simultaneously. The moment generating functions (MGF) of the signal-to-noise ration (SNR) for the direct and the indirect link are given in a closed forms. These statistical results are then applied to derive a lower bound of the symbol error probability (SEP) for a particular signal of M-ary-quadrature-amplitude modulation (M-QAM) and to obtain the outage probability through numerical evaluations. Subsequently, simulation results of the SEP and the outage probabilities are presented to illustrate the performance improvement given by the MIMO cooperative diversity systems based on STBC schemes
关键词：MIMO relay channel; space-time block coding; MRC scheme; moment generating function MGF; probability outage
