Performance of multiuser detection for optical CDMA .2. Asymptotic analysis

被引：11
|
作者：
Nelson, LB
Poor, HV
机构：
[1] PRINCETON UNIV,DEPT ELECT ENGN,PRINCETON,NJ 08544
[2] UNIV MINNESOTA,DEPT ELECT ENGN,MINNEAPOLIS,MN 55455
来源：
IEEE TRANSACTIONS ON COMMUNICATIONS | 1995年 / 43卷 / 12期
基金：
美国国家科学基金会;
关键词：
asymptotic multiuser efficiency; Optical CDMA; optimal multiuser detection;
D O I：
10.1109/26.477504
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper presents characterizations of optimum multiuser detection in intensity-modulation direct-detection CDMA channels based on asymptotic analysis of simple bounds on optimum performance. Technical difficulties in applying large deviation techniques to the evaluation of asymptotic multiuser efficiencies are rigorously addressed. These same difficulties also lead to derivation of conditions under which the linear multiuser detection achieves known-interference (hence, optimum) performance. Asymptotic analysis of the conventional correlation receiver, including derivation of the optimal decision threshold for on-off signaling formats, is also presented.
引用
收藏
页码：3015 / 3024
页数：10
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