Fractionally sampled linear detectors for DS-CDMA

被引：0

作者：

Brown, DR ^{[1
]}

Anair, DL ^{[1
]}

Johnson, CR ^{[1
]}

机构：

[1] Cornell Univ, Ithaca, NY 14853 USA

来源：

CONFERENCE RECORD OF THE THIRTY-SECOND ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS & COMPUTERS, VOLS 1 AND 2 | 1998年

关键词：

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：

In this paper we analyze the performance of fractionally chip sampled linear multi-user detectors for Direct-Sequence CDMA communication systems. We consider a general DS-CDMA system model accounting for user asynchronism and frequency selective propagation channels. Analysis shows that FIR linear defectors with chip rate sampling cannot perfectly recover N or more users for a system with spreading gain N in the presence of frequency selective channel dynamics or user asynchronism. Drawing inspiration from fractionally spaced equalization, we propose the fractionally chip sampled receiver and show that a FIR linear detector may be able to perfectly recover greater than or equal to N users.

引用

页码：1873 / 1877

页数：5

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