VD4: Vehicular Density-Dependent Data Delivery Model in Vehicular Ad Hoc Networks

In this paper, we present the VD4 model for effective delivery of data packets in vehicular ad hoc networks. The major challenges in such networks are disconnections, high mobility and resource poor environment. For providing data delivery under such constraints we adopt the method of carry and forward in which a vehicle transfers its data to another vehicle if it is moving towards the destination. For optimizing performance in such situations, we can make a probabilistic estimation as to which path the packet should follow when there are multiple options available. One such estimation can be based on road density and the average packet delay on the selected road. The paper focuses on the development of such a model that can act as a solution to reduce the packet delivery delay and improve the data delivery ratio.