(研究生论坛)采用机会调度和传输天线子集选择相结合的STBC-MIMO系统的性能分析

本文主要提出了一种结合机会调度(OS)和发射天线子集选择(Tx-AnSS)的STBC-MIMO系统并对它进行了性能分析，其中用户和天线子集是根据从接收端反馈的信道状态信息(CSI)而自适应选择的。首先推导得到了平均有效信噪比、符号误码率以及中断概率的解析表达和近似表达式，分析结果表明在结合多用户分集(MUD)和发射天线子集选择的STBC-MIMO系统相对于没有多用户分集和发射天线子集选择的系统提供了更大的分集合更好的性能。 此外，通过渐近分析得到了基于中断概率的分集增益的量化表达式。最后，通过相应的仿真结果很好的验证了分析结果。

Performance Analysis of Combing with Opportunistic Scheduling and Transmit Antenna Selection in STBC-MIMO Systems

This paper presents and investigates the performance of new STBC-MIMO systems with opportunistic scheduling (OS) and transmit antenna selection (Tx-AnSS), where the user and the antenna subset are adaptively selected according to channel state information (CSI), which is feedback from the receive side. First, we derive both analytical forms and approximation expressions for the average effective SNR and outage probability, showing that combining multiuser diversity (MUD) and Tx-AnSS provides much larger diversity and better performance than the scheme without MUD or Tx-AnSS. Further, the diversity gain of outage probability is also quantified through asymptotic analysis. Finally, we verify the analytical results through corresponding simulation results.