A Comprehensive Survey On Various Routing Protocols In Vanet

With the sharp and constant increase of aoutomative market, traffic accidents, finding a parking lot in a new city and traffic jams are becoming the serious issues that put emphasis on the evolution of Vehicular Ad hoc Networks(VANET). As a result of which VANETs receive the considerable attention of the scientific community. Moreover, communication between vehicles is used for safety, comfort and for entertainment as well. The routing in VANET is an important task for the reliable communication between the vehicles, number of routing protocols has been defined for this purpose. However, VANET researchers cannot able to evaluate the performance of their proposed protocols without any evaluation tool. So, various VANET simulators has been provided in order to help the active researchers to evaluate the performance of different routing protocols , thus they can be able to suggest most appropriate routing protocol for the given scenario. In this paper different routing protocols for VANET has been surveyed, in order to identify the most appropriate Ad-hoc routing protocol for the overall performance in highly mobile environment of VANET. From the literature survey done here, it is found that it is hard to provide a universal routing protocol that can work in diverse nature of vehicular environment.