Enhancement in AODV-Reactive Topology Based Routing Protocol in VANET

Vehicular Ad hoc Networks [VANET] is current active research area and one of the fastest emerging trends for research as there are many issues and challenges to be addressed by the researchers before the technology becomes commercialized. Vehicular ad hoc network is a self-organizing and infrastructure les network used to provide communication between vehicles to vehicle (V to V) and vehicle to road side units (RSU) and it is also subclass of mobile ad hoc networks (MANETs). The main objective of VANET is to builds a robust network between mobile vehicles so that vehicles can talk each other for safety of human beings. Ad hoc on demand distance vector (AODV) routing protocol is one kind of reactive protocols and it creates a route only when it needed. It can be applied to large scale ad-hoc network. AODV is required to overcome the problem of link failure during data transfer from source node to destination node. AODV provides loop free routes even while repairing broken links. Ad hoc on demand vector has the ability to unicast and multicast routing and it uses destination sequence number and it reduce excessive memory requirement and the route redundancy. In this work mainly focus on enhancing performance and capability and robust AODV protocol for VANET. Use different parameter Range, RREQ, RREP, Threshold, PDR, end to end delay Control information overhead minimizes and communication establishes minimize time algorithm efficient.