Location Information and Inter-Contact based Routing approach for Delay Tolerant Networks

Delay tolerant networks ( DTNs) are often susceptible to the problem of high delay. Quite often, the major reason behind the high delay in the network is lack of complete path from source to destination. One of the greatest challenges faced by DTN is to enable end to end communication in heterogeneous environment that possesses severe performance impairments. The DTN routing problem, amounts' to a constrained optimization problem where edges may be unavailable for extended periods of time and storage constraints exists at each node. The proposed protocol aims at minimizing the energy required for communication by reducing several overheads. It determines the delivery probability through each of its neighbours and delivers copies of message accordingly. The proposed protocol directionalizes the delivery of packets according to the location information of the destination. This study will focus on directional dissemination of messages which results in forwarding small number of messages. (C) 2015 The Authors. Published by Elsevier B.V.