Statistical mechanics of CDMA multiuser demodulation

被引：54
作者：
Tanaka, T [1 ]
机构：
[1] Tokyo Metropolitan Univ, Grad Sch Engn, Hachioji, Tokyo 1920397, Japan
来源：
EUROPHYSICS LETTERS | 2001年 / 54卷 / 04期
关键词：
D O I：
10.1209/epl/i2001-00306-3
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
I investigate the multiuser demodulation problem which arises in code-division multiple-access ( CDMA) systems. The relationship between the multiuser demodulation problem and a variant of the Hopfield model is established, based on which the replica analysis of some multiuser demodulation schemes is performed. Analytical results are presented for the maximum-a-posteriori ( MAP) demodulation, the optimal demodulation, and the naive mean-field approximation to the optimal demodulation.
引用
收藏
页码：540 / 546
页数：7
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