Analysis & enhancement of efficient and secure communication in vehicular ad hoc network

Data exchanging on the roads are becoming more and more interesting, as the number of vehicles equipped with computing technologies and wireless communication devices are poised to increase dramatically. Communications between vehicles (V2V) and Vehicle to Infrastructure (V2I) is becoming a promising field of research and we are moving closer to the vision of intelligent transportation systems (ITS). The more challenging in vehicular networks, as the nodes can move at high speed in a wide area surrounded of buildings and many other architectural structures which can in turn affect the propagation of the radio signal. As a consequence, we introduce an innovative method based on clustering, using junction, graph theory, security & cooperation in this paper, exploits the collaboration among vehicles to quickly disseminate information on a wide area. We would like to mainly focus on the performance analysis of the protocol in city scenarios via simulation using NS2 simulator.