The Improvement of Epidemic Routing Algorithm Using Nodes Movement Direction Data in Delay Tolerant Networks

Today, Delay Tolerant Network has become more widespread and has drawn many researchers' attention due to its features and applications. Due to the mobile nodes in Delay Tolerant Networks, the connection among some nodes in a specific moment is scarcely resistant [1]. Beating this in mind, the routing issue in these networks has attracted many researchers' attention. Routing in these networks performed based on STORE-CARRY-FORWARD paradigm [1]. One of the routing methods in these networks is Epidemic Routing that is flooding-based [3]. So that each node sends the packets to all the nodes it meets and has not received the packet yet [4]. Accordingly, an attempt made to add nodes movement direction factor and the destination situation to the epidemic routing as well as to improve buffer atmosphere through optimizing the number of copies.