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Draft-Research-Paper 09.05.2021.pdf

journal contribution
posted on 2021-05-12, 12:05 authored by Siham HasanSiham Hasan

Delay-Tolerant Networking (DTN) is a promising technique that can transmit data in challenging environments where the end-to-end path is not accessible. DTN is characterized by intermittent connectivity, long delays, and high error rates. Several routing protocols have been utilized to serve a range of scenarios and different topologies. However, due to the random change in topology and the absence of an end-to-end route, routing is considered as one of the issues that impact the performance of DTN. Therefore, the design of a novel effective routing in DTN that can direct the packets from one node to another is required. In the present paper, a comprehensive comparison of five DTN routing protocols Epidemic, Spray and Wait, PRoPHET, MaxProp, and Rapid is conducted by changing the number of nodes and varying the buffer size. The main aim of this paper is to offer an enhanced understanding of the behavior of different DTN routing protocols in terms of the delivery probability, overhead ratio, latency, and hop counts that depend on various network parameters such as the number of nodes and buffer size. Furthermore, the performance of these DTN routing protocols is modeled using the Opportunistic Network Environment simulator regarding the delivery probability, average latency, overhead ratio, and hop count. The outcomes of this simulation show that the MaxProp routing protocol provides the optimum performance from the five DTN routing protocols in terms of the delivery ratio in both the ShortestPathMapBasedMovement and Cluster models. Finally, the existing challenges are highlighted for further study.

Funding

DTA - De Montfort University

Engineering and Physical Sciences Research Council

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