Study of the Performance of the DRHT and TSP in Delay Tolerant Networks

Abstract

In Delay-Tolerant Networks (DTN), routing is a very challenging task due to their peculiar characteristics. Among various routing schemes, we find routing schemes based on clustering in order to improve the performances of this networks. In this work, we provide a DTN Routing Hierarchical Topology (DRHT) which incorporates three fundamental concepts: ferries messages, ferries routes, and clusters. The intra-cluster routing is managed by the cluster head, while the intercluster routing is managed by the ferries messages. This approach allows us to improve the performances of DTN networks. The simulations results have shown that our solution to the DRHT proves to be effective and adequate in the context of the DTN networks when compared to the other existing approaches.