湖南大学学报（自然科学版）2012，Vol.39Issue(11)：87-92,6.
基于链路自适应的机会协作系统性能分析
Performance Analysis of Opportunistic Cooperation Systems with Link Adaptation
摘要
Abstract
In order to improve the cooperative communication quality, this paper proposes an opportunistic cooperation scheme with adaptive Decoding-forward (DF) relaying, and analyzed the system performance of this scheme by establishing a general mathematic probability model. Based on the derivation of the system probability density function in Rayleigh fading channels, the closed-form expressions of the average spectral efficiency, outage probability and average bit error rate were obtained with the system in link adaptation. Monte Carlo simulations have shown that this adaptive decode-and-forward opportunistic cooperation outperforms previous systems and has about 30% higher average spectral efficiency than the Amply-and-forward (AF) cooperative system.关键词
协作通信/解码转发/链路自适应/机会中继/性能分析Key words
cooperative communication/ decode-and-forward/ link adaptation/ opportunistic relay/ performance analysis分类
信息技术与安全科学引用本文复制引用
黄生叶,陈纯,刘艳丽..基于链路自适应的机会协作系统性能分析[J].湖南大学学报（自然科学版）,2012,39(11):87-92,6.基金项目
湖南省环保科技计划资助项目(2011-16) （2011-16）
