A Dynamic Reputation-Based Incentive Scheme to Encourage Selfish Nodes in Post-Disaster Situation Using Delay-Tolerant Network

Abstract

Modern communication infrastructures that usually keep people always on-line and inform “on-the-go” have repeatedly proved to be unreliable and unavailable during and after major disasters. In those situations the prime need is to quickly re-establish minimal communication infrastructures to start rescue operations. DTN is described by a special kind of mobile ad-hoc network where sparseness, large communication delay and lack of end to end path from source to destination exist. It is evident from this fact that data forwarding is dependent on the cooperation of multiple hops in “store-carry-forward” manner. However, nodes involved in communication may sometimes behave maliciously and may non-cooperate. So, the objective in this perspective is to develop a reliable data forwarding scheme by detecting malicious activities and encourage nodes to participate in Post Disaster Communication environment. Analysis of the proposed system, its protocols and performance studies are implemented and tested using Opportunistic Network Environment (ONE) simulator.