Performance Analysis of TAS/MRC in MIMO Relay Systems With Outdated CSI and Co-Channel Interference
Performance Analysis of TAS/MRC in MIMO Relay Systems With Outdated CSI and Co-Channel Interference
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DOI：
10.1109/twc.2014.2345060
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发表时间：
2014-07
影响因子：
10.4
通讯作者：
Jing Guo;Changxing Pei;Hong Yang
中科院分区：
文献类型：
--
作者：
Jing Guo;Changxing Pei;Hong Yang
在本文中，我们研究了过时的信道状态信息（CSI）和多个同信道干扰（CCI）的性能的影响发射天线选择/接收机最大比合并（TAS/MRC）在双跳放大转发（AF）多输入多输出（MIMO）中继网络。导出了中断概率的紧下界和渐近表达式。进一步讨论了在存在多个CCI的情况下，有/没有过时CSI的系统的分集阶数。数值和仿真结果验证了我们的分析，并证明了过时的CSI和多个CCI对系统性能的影响。
In this paper, we investigate the impact of outdated channel state information (CSI) and multiple co-channel interferers (CCI) on the performance of transmit antenna selection/receiver maximal-ratio combining (TAS/MRC) in a dual-hop amplify-and-forward (AF) multiple-input multiple-output (MIMO) relay network. The tight lower bound and asymptotic expressions for the outage probability are derived. The diversity order of the system with/without outdated CSI in the presence of multiple CCI is further discussed. Numerical and simulation results are presented to validate our analysis and to demonstrate the effect of outdated CSI and multiple CCI on the system performance.