多天线中继系统中基于博弈论的协作通信

Cooperative Communication Based on Game Theory in Multi Antenna Relay System

近年来,多天线中继系统在提高系统容量和可靠性方面有着显著的效果,多天线中继网络已经被认为是4G的热门技术.本文结合多天线中继系统与博弈论,将博弈论引入到多天线中继系统,针对放大转发的中继网络,在理想信道下,讨论协作与非协作的情况.给出不同信道节点的信噪比增益和协作率的纳什议价解.仿真结果表明,系统在采用最优的合并方式和次优的合并方式中,通过比较发现,采用最优的合并方法,对节点的协作率和信噪比增益有显著的提高.

In recent years, the multi-antenna relay system has a significant effect on improving the system capacity and reliability, multi-antenna relay network has been considered as a hot technology of 4 G. In this paper, the game theory is introduced to the multi antenna relay system,and the cooperative and non-cooperative conditions in the ideal channel are discussed. The Nash bargaining solution of the gain and the cooperation rate of the nodes of different channels can be given. The simulation results show that the system uses optimal and suboptimal merger consolidation mode. Using the optimal combination method, the cooperation rate and the signal to noise ratio gain of the nodes are significantly improved.