Asymptotic analysis of optimum and sub-optimum CDMA downlink MMSE receivers

被引：0
|
作者：
Chaufray, JM
Loubaton, P
Hachem, W
机构：
来源：
SEVENTH INTERNATIONAL SYMPOSIUM ON SIGNAL PROCESSING AND ITS APPLICATIONS, VOL 1, PROCEEDINGS | 2003年
关键词：
D O I：
10.1109/ISSPA.2003.1224747
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
In this paper, we investigate the performance of linear receivers for CDMA downlink transmissions over frequency selective channels, the users having possibly different powers. For large spreading factors and under some technical conditions, Signal to Interference and Noise Ratios (SINR) at the output of these receivers have simple and easily interpretable expressions. Free probability, a theory which studies in particular the asymptotic behavior of some large random matrices, is used. Two linear receivers are considered and compared: the MMSE receiver and a chip equalizer.
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页码：493 / 496
页数：4
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