Comparative study between unicast and Multicast Routing Protocols in different data rates using vanet

Vehicular Ad hoc Network provides a technology for communicating in between different vehicles. In this paper the performance of vehicular ad hoc network is evaluated using various QOS metrics, which affects the performance of network communication, also analyze the QoS performance with metrics routing overhead, packet delivery ratio and average delay with 1024 bytes packets for unicast routing protocols(Dynamic Source Routing, Ad hoc On demand Distance Vector routing) and multicast routing protocols (Adaptive Demand driven Multicast Routing, On Demand Multicast Routing Protocol) in urban environment. After evaluation results are compared with 512 bytes packets [3] to see the difference in performance of vehicles with different packet size. For investigation it uses the network simulator i.e. ns-2 with a car traffic movement tracing simulator SUMO.VANET simulation is implemented in a 50 × 50 meters grid model of city environment. The connectivity tests have shown that it is a realistic option to use ad hoc networks for vehicular communication. For unicasting DSR and in case of multicasting ADMR perform better as compared to other protocols.