STUDY ON PERFORMANCE OF VANET ROUTING PROTOCALS AND CHALLENGES

A Vehicular Ad - Hoc Network, or VANET, is a type of Mobile ad - hoc network, which provide communications between vehicles, among nearby vehicles, and nearby fixed units, usually described as a roadside unit (RSU). VANET provide facility for the vehicles on roads to communicate for driving safety. The basic idea is to allow arbitrary vehicles to broadcast ad hoc messages to other vehicles. However, this raises the issue of security and priv acy. Here, we have described various existing solutions/protocols that are used in order to satisfy the security and privacy requirement of the vehicular ad hoc network. We have also described security issues and challenges in VANET. The main goal of VANET is to provide safety and comfort for passengers, drivers and other road users. To achieve this special electronic device will be connected to each vehicle which will provide Ad - Hoc Network connectivity to the passengers. In this paper we are going to dis cuss study the VANET behavior in different routing protocol