Adaptive Hybrid Routing Protocol for VANETs

Within VANETs, vehicle mobility will cause the communication associations between vehicles to deteriorate. Hybrid routing is necessary as one size fits all approach is not suitable for VANET?s due to diversity in the infrastructure consisting of mobile nodes, stationary nodes, road-side units (RSU), control centres etc. Therefore, in the proposed system, we implement a hybrid design methodology, where we syndicate features of reactive routing (AODV) with geographic routing and proactive routing protocol. Adaptive Hybrid Routing Protocol(AHR), vehicles use proactive routing protocol for V2I communication and reactive routing protocol with geographic routing protocol for V2V communication. The system integrates features of both reactive and geographic routing protocols along with proactive routing schemes. It combines these routing protocols in a manner that efficiently uses all the location information available and exit to reactive routing as the location information degrades. As compared to the existing standard routing protocols, the analysis and simulations show that the routing overhead has been significantly reduced. It demonstrates how such a performance enhancement would yield a scalable and efficient routing solution in the context of VANET environments. Even in the occurrence of location errors, proposed system works efficiently and obtains scalable performance, thus making it an optimal protocol for VANETs