Secure Technique for Collision Avoidance in Vehicle-to-Vehicle Communication

Inter-Vehicular Ad-hoc Network (IVAN) does not have a fixed network topology but is highly dynamic. The topology of the network changes frequently because wireless links are established and broken down due to certain factors such as the velocity of the vehicles, their mobility patterns and their spatial density. These high dynamics also cause very short times for data transfer. This paper presents Inter Vehicular Collision Avoidance System on Highways to ensure that the vehicles perform safety communication with each other for which can alert the drivers before accidents. This can be done by defining a critical “Inter-Vehicular Distance” to be maintained between and any two vehicles on highways. Moreover, certain vehicles such as ambulance, fire service vans, police patrols need to be given a high priority, as their requirements are crucial during emergency situations. By giving vehicular priorities and providing group communications, our proposed System results vehicular collision avoidance in Inter Vehicular Ad-hoc Network. Another objective of this paper is to secure the information passing via Inter-Vehicular ADHOC wireless Network and protect it from intruders. For this a Secure-Pre warning Collision Algorithm (S-PWCA) is implemented in firmware to make the IVAN message more secure.