Load Balance Algorithm of Adaptive Message Copies Number in DTN

Routing algorithm based on flooding strategy due to excessive copying messages consumes a lot of network resources.It easily lead to network congestion,low data transmission rate.In order to alleviate network congestion,make full use of node resources,this paper presents a load balancing algorithm based on adaptive number of message copies.The algorithm dynamic controls the number of copies on the basis of cluster congestion degree.At the same time,defining the node congestion degree to select the next hop node and balance resource consumption between nodes.Experimental results show that,comparing with traditional Spray-and-wait algorithm,this algorithm reduces the overhead of the network by 50%,66.7% packet loss has gone down.