LionBEAR: A location based energy aware routing scheme in DTNs

Abstract

In Delay-Tolerant Networks (DTNs), data is forwarded opportunistically upon contact because of intermittent connectivity and network sparsity. To address the problem of selecting appropriate relay nodes for data forwarding, nowadays location information of the nodes is used in the design of DTN routing schemes. But the existing schemes lack in considering energy-constraints of the nodes. In this paper, we propose a location-based energy-aware routing scheme to deliver data to the destination. The proposed scheme selects relays for data delivery based on the location as well as on the residual energy of the DTN nodes. Exhaustive simulation is performed using ONE simulator to evaluate the comparative performance of our proposed scheme with an existing state-of-the-art competing scheme. We claim that our scheme achieves higher delivery ratio and longer network lifetime in terms of average residual energy compared to the competing scheme. Our claim is validated through qualitative and quantitative performance analyses.