Evaluating Mobility Models in Delay Tolerant Network

Mobility model is an essential factor in evaluating routing protocols designed for Delay Tolerant Networks. The use of inappropriate mobility models for evaluating a routing protocol in DTN can significantly affect its performance and the applicability in real world. In literature, many of existing mobility models designed for their own routing protocols are somewhat inappropriate since they are not designed for all possible scenarios. In this paper, we seek to understand the effects of different mobility patterns on routing protocols developed for DTNs applied in a specific environment, and then evaluate the impact of these mobility models by varying the number of nodes in the network. This paper is mainly focused on using mobility-based models and assessing their performance in terms of encounter times, contacts per hour, delivery probability, average latency and remaining energy of nodes.