Rayleigh衰落信道中的CDMA多用户分集接收性能

本文针对频率选择性Ｒａｙｌｅｉｇｈ衰落信道，设计了一种ＣＤＭＡ多用户检测器分集结构，通过该结构，高斯信道多用户检测算法可以有效地应用到Ｒａｙｌｅｉｇｈ衰落信道中，仿真结果表明，分集合并实现的多用户中以显著改善衰落信道的误码性能，其处理多址干扰能力并不因分集而受到影响，另外，本文还对不同的合并以及不同的检测地作了性能上的比较。

Performance of CDMA Multiuser Diversity Reception for Rayleigh Fading Channels

We design a diversity structure of CDMA multiuser detector for frequency selective Rayleigh fading channels. The multiuser detection algorithms for Gaussian channel can be effectively employed in the Rayleigh fading channel through the structure. Simulation results show that the diversity combining of multiuser detection will significantly improve the probability of error in the fading channel,and its capability for dealing with the multi-access interference will not be affected by multiuser detection algorithms. Furthermore,the comparison is made between different combiners and different detection algorithms.