Comparative and Behavioral Study of Various Routing Protocols in VANET

Vehicular ad hoc networks (VANETs) are a subclass of mobile ad hoc networks (MANETs). It is a new challenging network environment that pursues the concept of ubiquitous computing for future. VANETs bring lots of possibilities for new range of applications which will not only make the travel safer but fun as well. Reaching to a destination or getting help would be much easier. The concept of VANETs is quite simple: by incorporating the wireless communication and data sharing capabilities, the vehicles can be turned into a network providing similar services like the ones with which we are used to in our offices or homes. So, VANET is a promising approach for the intelligent transportation system (ITS). The design of routing protocols in VANETs is important and necessary issue for support the smart ITS. MANET routing protocol is not suitable for VANET because MANET routing protocol has difficulties from finding stable routing paths in VANET environments. This paper discusses the advantages / disadvantages and the applications of various routing protocols for vehicular ad hoc networks. KeywordVANET, Challenges in Communication Protocols, Different Routing Techniques, Routing Protocols, Topology-based, Position-based, FSR, AODV, DSR, PGB, TORA.