Space-Time Coded Beamforming for DS CDMA Downlink

被引：0

作者：

WANG Shilu XU Changjiang FENG GuangzengNanjing University of Posts and Telecommunications Nanjing PRChina ^{[21003
]}

机构：

来源：

The Journal of China Universities of Posts and Telecommunications | 2005年 / 01期

关键词：

CDMA; space-time coding; beamforming; multiuser detection; transmit diversity;

D O I：

暂无

中图分类号：

TN929.532 [时分多址（TDMA）移动通信];

学科分类号：

080402 ; 080904 ; 0810 ; 081001 ;

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.

引用

页码：86 / 90

页数：5

共 3 条

[1] Two Schemes of Blind MMSE Multiuser Receiver for Space-Time Coded CDMA Systems [J].

LU MinXU ChangjiangFENG Guangzeng Nanjing University of Posts and Telecommunications Nanjing P R China .

TheJournalofChinaUniversitiesofPostsandTelecommunications, 2004, (01) :45-51

[2]

An extension of the PASTd algorithm to both rank and subspace tracking. Yang B. IEEE Signal Processing Letters . 1995

[3]

Blind Multiuser Detection: A Subuspace Approach. Xiaodong Wang, H Vincent Poor. IEEE Transactions on Information Theory . 1998

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