A Review on Safety Mechanisms in Vehicular Ad hoc Network

Major goal of the Vehicular Ad-Hoc Network (VANET) is to improve road safety and driving comfort. VANET cannot guarantee timely detection of dangerous road conditions. For addressing such problem, we proposes a new scenario using VANET, with Roadside Sensor Unit (RSU) connected to base stations(BS), every vehicles on the road can communicate to server via base station. The sensor nodes along the roadside, senses road conditions, and deliver information about dangerous conditions of roads to vehicles via RSU and BS and the same message is broadcasted to other vehicles by V2V and V2I communication. All such broadcasted messages are real or fake message is check through Position-based routing security algorithm, which provides security to emergency messages and checks whether alteration of any parameter is done or not by any malicious nodes. The proposed system notifies about the accidents and suggests new route to other vehicles to avoid traffic congestion. Keyword Vehicular Ad hoc Network (VANET), V2V, V2I and V2V and RSU communication, data mining, PBR.