STTC-SD with LMMSE multi-user detection for WCDMA downlink

被引：0
|
作者：
Thirukkumaran, S [1 ]
Pang, KK [1 ]
机构：
[1] Monash Univ, Dept ECSE, Ctr Telecommun & Informat Engn, Melbourne, Vic, Australia
来源：
2005 International Conference on Wireless and Optical Communications Networks | 2005年
关键词：
MIMO; DS-CDMA; scrambling diversity; space-time coding; STTC-SD; multi-user detection (MUD);
D O I：
10.1109/WOCN.2005.1436067
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
In this paper we analyze the performance of Space Time Trellis Coded-Scrambling Diversity (STTC-SD) scheme for WCDMA downlink, when a linear minimum mean squared error multi-user detection (LMMSE-MUD) receiver is used. STTC-SD scheme for CDMA systems was introduced in [1, 2] and was shown to perform better than conventional STTC scheme under low system loads. At high system loads, the STTC-SD scheme suffers excessively from multiple access interference. In this paper we show that, by using a LMMSE-MUD receiver, this problem can be rectified so that STTC-SD scheme performs significantly better than standard STTC scheme at all system loads.
引用
收藏
页码：453 / 457
页数：5
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