Betweenness Based Self-adaptive Relay Station Selection Algorithm in Cooperative Communication

摘要

Analysis of real communication network's information transmission performance especially in WSN (Wireless Sensor Network) has always been the research hotpots of wireless network communication efficiency. In this article, four different node fault generation policies are adopted on network datasets including real communication networks and simulated networks to test network's resilience. Experiments focus on the relationship between fault nodes and network structure indications .It is found that betweenness based strategy is more harmful to network structure related to network's information transmission performance. After modifying traditional WSN relay station select algorithm, the self-adaptive relay station selection algorithm in cooperative communication based on node's betweenness is proposed in this arcitle to promote information transmit efficiency in WSN in the time of information transmit and decrease transmit time.