超短波通信下基于模糊评判的剩余能量缓存协作中继选择方案  

Residual Energy Buffer-aided Cooperative Relay Selection Based on Fuzzy Comprehensive Evaluation on VHF Communication

作　　者：陈慧林[1] 杨文东[1] 王呈贵[1] 

机构地区：[1]解放军理工大学通信工程学院,江苏南京210007

出　　处：《通信对抗》2016年第1期20-25,共6页Communication Countermeasures

摘　　要：在超短波通信下针对有限长缓存辅助协作中继系统提出了一种基于缓存中继剩余能量的缓存中继选择方案。所提方案不仅考虑了无线链路的信道状态信息(CSI),而且还考虑了缓存中继的剩余能量和缓存剩余大小,综合考虑这三种因素来选择最优中继节点。运用马尔科夫链模型在放大转发协议下(AF)分析了所提方案的中断概率和网络的使用寿命。仿真结果表明,所提方案相比于最大链路选择方案,明显提高了网络的使用寿命。In this paper, we propose a buffer-aided relay selection scheme based on residual energy for the fi- nite buffer-aided cooperative relay system for VHF communication. The proposed scheme considers the resid- ual energy relay, channel state information （CSI） of the wireless link and the remaining buffer size to select a re- lay node. Markov chain model is used to analyze the relay buffer＇s state transition matrix and the corresponding steady-state distribution matrix under amplify-and-forward protocol, and the outage probability of the pro- posed program has been analyzed. We also analyze the lifetime and the average delay of the network. Simulation results show that the proposed scheme has lower average delay and higher lifetime compared to the maximum link options.

关 键 词：缓存辅助中继 剩余能量 中继选择 网络寿命 

分 类 号：TN925[电子电信—通信与信息系统]