Design of Reactive Routing Protocols to Improve the Performance of VANET

Vehicular Ad-Hoc Networks (VANET) is a subclass of Mobile ad-hoc networks which gives as an eminent method for Intelligent Transport System (ITS). The analysis of routing protocols in VANET is essential and basic for intelligent ITS. In this paper discussed the pros/cons and the applications of a typical routing protocol used for vehicular ad-hoc networks. It evaluates the backward designed purpose, and tracks the progression of routing protocols. In this paper, an effort has been made to evaluate the performance of vehicular networks by using two reactive routing protocols namely Ad-hoc On demand Distance Vector (AODV) and Dynamic Source Routing (DSR) are the detection algorithms which works as gateway and a geographical routing protocol namely Greedy Perimeter Stateless Routing (GPSR) which is used to update network topology information available to all nodes in VANETs for different scenarios. Comparisons of protocols are made on the basis of different parameters such as throughput, packet loss, packet delivery ratio and end-toend delay using NS2 simulator.