Comparative Study of Radio Propagation and Mobility Models in Vehicular Adhoc NETwork

Vehicular Adhoc NETwork) has gained interest all over the world, many projects and research communities are working for the deployment of VANET. The main objective of these projects and researches are to develop protocols and tools to provide adequate wireless communication between vehicles. As we all know that these studies and practices are still simulation based because it's infeasible to use real vehicles for the large scenario in different conditions to develop new algorithms and protocols for VANET. A wireless channel is unsteady and lossy so simulators for VANET require a model of these characteristics. In this paper we have highlighted the need of adequate radio propagation and mobility models for VANET as these two factors play an important role to adopt the protocol suitable for vehicle communication