陕西科技大学学报（自然科学版）2017，Vol.35Issue(2)：165-170,6.
基于定向天线和中继随机分布的AF协作通信系统
Multi-relay AF cooperative communication system withrandomly distributed relays and directional antennas
摘要
Abstract
Combined the directional antennas with opportunistic relaying AF strategy,the performance of multi-relay cooperative communication system is studied.The exact expression for the outage probability of the system is derived for Rayleigh fading environment and the case where the directional antennas are used and the relaying nodes are assumed to be distributed as a homogeneous Poisson point random process with fixed density.Theoretical analysis and simulation results show that combined the directional antennas with opportunistic relaying AF strategy can effectively reduce the cooperative communication system outage probability,improve the spectrum efficiency.It is pointed out further that the transmission power of the source node and the relay node has an important effect on the performance of the system,and the equal power allocation scheme cannot guarantee the system with the best performance.关键词
协作通信/定向天线/机会中继/中断概率/放大转发Key words
cooperative communication/directional antennas/opportunistic relaying/outage probability/amplify and forward relaying分类
信息技术与安全科学引用本文复制引用
王明伟,张会生,李立欣,李强华,何立风..基于定向天线和中继随机分布的AF协作通信系统[J].陕西科技大学学报（自然科学版）,2017,35(2):165-170,6.基金项目
中国博士后科学基金资助项目(2014M552489) （2014M552489）
中央高校基本科研业务费专项基金资助项目 (3102014JCQ01052) （3102014JCQ01052）
陕西省科技厅基础研究计划项目(2016JM6062) （2016JM6062）
陕西省咸阳市科技计划项目(2015K03-17) （2015K03-17）
