Day to day the number of vehicles on roads increasing drastically and results in more congestion and hence more number of accidents. Intelligent Transportation Systems initiates the vehicular ad-hoc networks, in which vehicles are equipped with a number of sensors, computing devices, camera, radar etcetera and are capable ofcommunicating the information among other smart vehicles and roadside units and guarantees improvement of traffic conditions and safety. IEEE802.11p protocol can be used to link vehicles to the internet with or without existing infrastructure. Here routing of packets is a challenging task as the nodes are mobile. The objective ofthis paper is to illustrate the working of existing standard topology based routing protocols like DSDV, OLSR and AODV with simulation results in terms of packet delivery ratio, end to end delay and jitter delay fordifferent node densities of network. Simulations are carried out using NS3 and SUMO.

VANET, MANET, DSRC, DSDV, OLSR, AODV