Outage Analysis of Cooperative CDMA Systems in Nakagami-m Fading Channels

被引：12
|
作者：
Mehemed, Ali [1 ]
Hamouda, Walaa [1 ]
机构：
[1] Concordia Univ, Dept Elect & Comp Engn, Montreal, PQ H3G 1M8, Canada
来源：
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | 2012年 / 61卷 / 02期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Asynchronous code-division multiple access (CDMA); cooperative diversity; Nakagami-m fading; outage probability; PERFORMANCE ANALYSIS; COMMUNICATION-SYSTEMS; RELAY SELECTION; DIVERSITY; NETWORKS; PROBABILITY; SUM;
D O I：
10.1109/TVT.2011.2178870
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：
The performance of uplink cooperative code-division multiple-access (CDMA) systems using adaptive decode-and-forward (DF) relaying is investigated over Nakagami-m fading channels. A closed-form expression for the outage probability for a multirelay system with relay selection is derived. Our method is based on the moment-generating function (MGF) for the total signal-to-noise ratio (SNR) at the base station where the cumulative density function (cdf) is obtained. We also examine the asymptotic performance of the system at high SNR from which we evaluate the achievable diversity gain for different system parameters. Both simulations and analytical results are presented for performance evaluation.
引用
收藏
页码：618 / 623
页数：6
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