空时发射分集CDMA的多径分集接收  

Multipath Diversity Reception of STTD CDMA Communications

作　　者：唐友喜[1] 李少谦[1] 朱近康[2] 

机构地区：[1]电子科技大学抗干扰通信国防重点实验室,成都610054 [2]中国科技大学信息科学技术学院,合肥230027

出　　处：《电子学报》2000年第z1期62-66,共5页Acta Electronica Sinica

基　　金：国家高技术研究发展计划 (863计划 )课题!(863 31 7 0 3 0 1 0 6 99及 863 31 7 0 3 0 1 1 0 99)

摘　　要：本文研究了采用STTD(spacetimetransmitdiversity)技术的随机序列扩频CDMA(codedivisionmultipleac cess) ,在频率选择性慢衰落信道中的单用户RAKE接收机在径数很大情况下的性能 ,并与没有采用STTD的CDMA系统的RAKE接收机的性能进行了比较 .结果表明 ,STTD技术的采用 ,增强了多址干扰环境中RAKE接收机的抗衰落性能 .In this paper,we study the performance of single user RAKE receiver of STTD CDMA(space time transmit diversity code division multiple access) in frequencies selected slow fading channel.The result showed that the performance of the receiver of STTD WCDMA(Wideband code division multiple access) is better than one of the receiver of WCDMA without STTD.Another intersymbol interference and multi-address interference are induced because of using STTD.The influence of the intersymbol interference and multi-address interference on single user RAKE receiver was also given.

关 键 词：空时发射分集 宽带码分多址 RAKE接收机 衰落信道 码间干扰 多址干扰 

分 类 号：TN-55[电子电信]