Space-Time Coded Beamforming for DS-CDMA Downlink

Space-Time Coded Beamforming for DS-CDMA

Downlink

WANG Shi-lu;XU Chang-jiang;FENG Guang-zeng

【期刊名称】《中国邮电高校学报（英文版）》 【年(卷),期】2005(012)001

【摘要】In this paper,we analyze the scheme of Space-Time Coded BeamForming(STC-BF)for the downlink of DS-CDMA system over frequency-selective fading channels and give the numerical simulations on the scheme.The blind multiuser detection is employed at receiver to suppress

the

Multi-Access

Interference(MAI).The

Space-Time

Coding(STC)and BF are combined to mitigate the performance degradation due to multipath fading and various interferences.The numerical simulations show that the BF can compensate the performance loss of STC due to the channel correlation and then the STC-BF can greatly improve the performance of CDMA system. 【总页数】5页(86-90)

【关键词】CDMA;space-time detection;transmit diversity

【作者】WANG Shi-lu;XU Chang-jiang;FENG Guang-zeng 【

作

者

单

位

】

Nanjing

University

of

Posts

and

coding;beamforming;multiuser

Telecommunications,Nanjing 21003,P.R.China;Nanjing University of Posts

and

Telecommunications,Nanjing

21003,P.R.China;Nanjing