A Nobel approach to create trust by using similarity based scheme in VANET

Abstract: Vehicular ad hoc network is a special kind of ad hoc network which consists of vehicles nodes. When researchers uses vehicle as a node they face some issues which are “high speed of vehicle” due to this topology changing dynamically, system needs central authority, relationship between nodes are often short lived. VANET network is introduced by ITS (Intelligent Transportation System) to protect human lives on road from accidents furthermore it focuses on providing applications which provide comforts driver during travelling. But now a day’s ad hoc network is facing security issues and VANET is not an exemption. In VANET, information should be sent or receive by nodes on time and without being altered, for the reliable and efficient delivery of message. Trust is key element in network by which, one node beliefs over the other one when it receives data from it. Trust may have many faces like it can either be on the information, node, road side units, etc, but we mainly focuses on data centric trust which provided the trusted information and give some essence of entity centric trust to make system attacker free by using combined trust. In proposed approach we introduce a similarity metric which is updated and maintain by node on the basis of some specific information given by their neighbor, after that we proposes our own trust model. Results show the acceptance of our trust scheme with respect to the introduction of forge or altered data in a network.

Keywords: V2V (vehicle-to-vehicle), V2I (vehicle-to-infrastructure), RSU (road side unit)