A semi-blind approach for MMSE equalization in downlink CDMA channel

被引：0
作者：
Choi, JH [1 ]
机构：
[1] Univ New S Wales, Sch Elect Engn & Telecommun, Sydney, NSW 2052, Australia
来源：
ICCS 2002: 8TH INTERNATIONAL CONFERENCE ON COMMUNICATIONS SYSTEMS, VOLS 1 AND 2, PROCEEDINGS | 2002年
关键词：
CDMA; IS-95; chip-level equalizer; blind algorithm; adaptive algorithm; time-variant frequency-selective fading;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
We investigate the chip-level equalization using finite impulse response (FIR) equalizers for the mobile station of code division multiple access (CDMA) systems with single and multiple receive antennas. As a semi-blind method, a generalized minimum mean square error (MMSE) equalization, which combines the MMSE and blind approaches together, is investigated. It is shown that the generalized MMSE equalizer can effectively increase the number of samples to track the variation of channel and thereby performs better when the coherence time is small. In addition, we derive a closed-form solution of the. MMSE and generalized MMSE equalizers for given channels.
引用
收藏
页码：67 / 71
页数：5
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