Multicarrier CDMA Systems with Transmit Diversity in Two—Ray Multipath Fading Channels  

作　　者：FANLingtao CHENJian 

机构地区：[1]DepartmentofElectronicEngineering,ShanghaiJiaotongUniversity,Shanghai200080,China

出　　处：《Chinese Journal of Electronics》2003年第3期415-418,共4页电子学报（英文版）

摘　　要：Transmit diversity is recently proposed to reduce the effects in fading channels in various wireless applications. In this paper, we apply a transmit diversity technique to downlink multicarrier CDMA (Code devision multiple access) systems, which utilize the cyclic shift ver-sions of the normal spread codes as the spread sequences in transmit diversity branches. A RAKE-like parallel receiver is employed in frequency domain to obtain diversity gains.Simulation results show that performance benefits can be achieved compared to conventional MC-CDMA systems in Z-ray multipath fading channels.

关 键 词：多用户码分多址 CDMA 传输分集 接收机 多径信道 

分 类 号：TN929.533[电子电信—通信与信息系统]