Due to the characteristics of intermittent connection of the delay tolerant network,as well as the limited resources such as the node's own cache and energy,the nodes in the DTN tend to show a certain degree of selfishness.The existence of selfish nodes may increase the network overhead and reduce the successful delivery rate of messages.In order to promote selfish nodes to participate in cooperation,an efficient routing algorithm PVCT(efficient routing algorithm based on virtual currency transaction in DTN)is proposed,which combines the small world characteristics of the delay tolerant networ...
