两跳双中继协同ARQ策略研究  

Research on cooperative ARQ for two-hop and two-relay system

作　　者：熊莹[1] 唐伦[1] 陈前斌[1] 

机构地区：[1]重庆邮电大学移动通信技术重点实验室,重庆400065

出　　处：《计算机应用研究》2010年第1期311-313,共3页Application Research of Computers

基　　金：国际科技合作计划项目(2008DFA12110);新世纪优秀人才支持计划项目(NCET-06-0778);重庆市自然科学基金资助项目(2007BB2390;2008BB2413);重庆市教育委员会科学技术研究项目(KJ070501;KJ080522)

摘　　要：基于中继择优选择,提出一种新型协同通信系统传输方案:两跳双中继协同ARQ策略。该方案是传输时延和传输效率的优化折中。理论分析和仿真结果说明,在时间相关瑞利衰落信道模型下,两跳双中继协同ARQ策略无论是在源到中继链路质量较好时,还是源到中继链路衰落较为严重时,给系统带来的性能增益都远优于单中继协同ARQ策略和双中继协同系统。The paper proposed a new transmission scheme in cooperative communication system based on best relay selection： cooperative ARQ scheme for two-hop and two-relay. The scheme was a tradeoff between transmission delay and efficiency. The analysis of theory and simulation results show that, under time correlated Rayleigh fading channel, cooperative ARQ scheme for two-hop and two-relay can give the best performance gain compared with single relay cooperative ARQ system and two relay cooperative system, not only when the qualities of source and relay are good, but also when there is a bad fading in the link of source to relay.

关 键 词：中继 协同通信 ARQ 误比特率 性能比较 

分 类 号：TN925[电子电信—通信与信息系统]