基于多径瑞利衰落信道的CDMA信道编码

1997 IEEE International Conference on Personal Wireless Communications (Cat. No.97TH8338) Pub Date : 1997-12-17 DOI:10.1109/ICPWC.1997.655566

A. Correia, F. Cercas

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引用次数: 1

摘要

本文考虑了单用户接收机的异步DS-CDMA系统。重点是误差控制与伪码序列扩散的结合。研究表明，当所有的带宽扩展都是通过错误控制编码而不是通过PN序列来实现时，可以获得最佳性能。该结论适用于所有类型的衰落信道。在保持总可用带宽和信息速率不变的情况下，对采用不同误差控制方案的CDMA系统进行了比较。分析了DBPSK调制和/spl pi//4 DQPSK非相干解调调制。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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On channel coding for CDMA over multipath Rayleigh fading channels

This work considers asynchronous DS-CDMA systems with single-user receivers. The focus, is on combined error control/PN sequence spreading. This work shows that the best performance is achieved when all the bandwidth expansion is by error control coding, instead of by PN sequences. This conclusion is valid for all types of fading channels. Comparisons of CDMA systems using different error control schemes are presented, keeping constant the total available bandwidth and the information rate. Both DBPSK and /spl pi//4 DQPSK modulation with noncoherent demodulation are analysed.

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来源期刊

1997 IEEE International Conference on Personal Wireless Communications (Cat. No.97TH8338)

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