A geographical hybrid solution for Inter-Vehicular Communication in VANET

Abstract

Vehicular Ad hoc Network (VANET) is a wireless ad hoc network that provides communications among vehicles with on-board units (OBUs) and nearby roadside units (RSUs). VANETs are general-purpose distributed wireless networks interconnected without the need of any centralized infrastructure. VANETs can be used for many potential applications. The simulation of VANETs requires two different components: a vehicular traffic simulator and a network simulator, for simulating the behavior of a wireless network. In this paper we will introduce the GEOADV routing protocol. The GEOADV protocol is a hybrid geographic routing protocol in which paths are created reactively. GEOADV will address the lack of adaptable routing protocol in VANET environments. In our Manhattan grid simulation we will show that GEOADV has the smallest consistent average delay and outperforms all other protocols in average delivery ratio. It was observed that GEOADV's average delay remains less than one second, and even in increased density is more stable, and outperforms AODV, GPSR, AODV-WR, and GPSR-WR. GEOADV is showing to be an adaptable protocol in the VANET environment.