摘要
提出了一种增强选择性机会中继解码转发协议,采用了3种传输模式:直传模式,直接重复传输模式和机会中继解码转发模式,系统通过目的节点检测接收到的信噪比范围来选择传输模式.同时,给出了该协议的中断概率性能的精确闭式表达和吞吐量.通过理论分析和数值仿真表明:该协议不仅具有选择性机会中继解码转发的高中断概率性能,而且兼具增强型机会中继解码转发的高吞吐量性能.
The problem of accurate closed-form expression for the outage probability derived was pointed out. Additionally, an incremental selective opportunistic relaying decode-and-forward (ISODF) protocol was proposed. In this protocol, there are three transmission modes, which are di- rect transmission, direct repeat transmission and opportunistic relaying decode-and-forward. The transmission mode can be selected by detecting the signal-to-noise ratio (SNR) received by the desti- nation. Furthermore, exact closed-form of the outage probability and throughput of the considered protocol were derived. Theoretical analysis and simulation results show that the proposed protocol has the high outage performance as selective opporunistic decode-and-forward protocols (ODF) and the high throughput as incremental ODF.
出处
《华中科技大学学报(自然科学版)》
EI
CAS
CSCD
北大核心
2013年第4期36-40,共5页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
基金
重庆市院士基金资助项目(CSTC2008BC2001)
重庆市科技攻关计划资助项目(CSTC2009AB2167)
关键词
协作通信
解码转发
机会中继
中断概率
吞吐量
瑞利衰落
cooperative communications
decode-and-forward (DF)
opportunistic relay
outageprobability
throughput
Rayleigh fading