Relay selection strategy in multiple S-R-D nodes network based on amplify and forward cooperation
Chen Chun-ka · 2014
In the case of multiple sources,relay and destination nodes,this paper have researched relay selection strategy and transport mechanism in amplify and forward cooperative system.In order to get the optimal solution,the method of exhaustion is used in the optimal relay selection strategy;the computational complexities of this method increase with the increase in the number of relay nodes significantly.On this basis,the improved relay node selection strategy is proposed,the strategy is to make the minimum average bit error rate of the system,and then the outage capacity of destination is maximized.Simulation and analysis show that:the strategy can achieve throughput similar to optimal algorithm,and complexity is also greatly reduced.