Routing in Delay Tolerant Networks (DTN) Improved Routing With Prophet and the Model of “Transfer by Delegation” (Custody Transfer)

In this paper, we address the problem of routing in “delay tolerant networks”(DTN). In such networks there is no guarantee of finding a completecommunication path connecting the source and the destination at any time,especially when the destination is not in the same region of the source, whatmakes the traditional routing protocols inefficient in that transmission of themessages between nodes. We propose to combine the routing protocol Prophetand the model of "transfer by delegation" (custody transfer) to improve therouting in DTN network and to exploit the nodes as a common carriers ofmessages between the network partitioned.To implement this approach and assess those improvements and changes wedeveloped a DTN simulator.Simulation examples are illustrated in the article.