A new modified spray and wait routing algorithm for heterogeneous delay tolerant network

Delay tolerant network is growing area of research. There are lots of real life practical applications of delay tolerant network, packet delivery ratio and routing overhead one of the main concern of this network. In this paper we study about delay tolerant network and its various routing protocol now we focus on spray and wait routing protocol. In our proposed work we modify the spray and wait routing protocol, in which number of copies generate according to mobility area or number of connection, for better performance we simulate this new routing approach in heterogeneous scenario so that node communicate to each other. This whole scenario we implemented on one_1.4.1 and novelty of our work proof by our results.