基于SPW的差分空时分组码的仿真实现

Simulation Implementation of Differential STBC Based on SPW

近年来,差分空时码受到广泛关注。这是由于当接收端没有信道状态信息时,差分空时码仍然可以获得良好的性能。在介绍了差分空时分组码编译码原理的基础上,将差分空时分组码封装为SPW中的自定义模块,然后在SPW中对差分空时分组码在瑞利平坦衰落信道下的性能进行了仿真,并与相同信道条件下具有理想信道估计的空时分组码的性能进行了比较。仿真和分析结论表明了差分空时码的优越性。

Differential space-time codes （DSTC） is interested widely for these years, because it still acquire good performance without channel state information at the receiver. User custom blocks of differential space-time block codes （DSTBC） were designed in SPW on the basis of introducing the principle of DSTBC,and the performance of DSTBC on flat Rayleighfading channel was simulated in SPW and compared with STBC with perfect channel estimates under same channel conditions. The simulation and analysis result shows the advantage of DSTBC.