A V2X Approach for Data Dissemination in Vehicular Ad Hoc Networks

Vehicular ad-hoc networks are a promising type of networks that allows the communication between vehicles with the goal to promote safe and efficient traffic. During the trips, vehicles can communicate with each other and with other networks by interacting with them and with the cell phone network. In VANETs, data dissemination is a general task required by many services, which consists of the delivery of data messages to a group of vehicles. In this type of communication, the knowledge of the interactions among vehicles can help to improve the performance of data dissemination. Thus, in this work, we propose the TBD (Trajectory Based Dissemination), a solution that transmits the information on the network according to the density of vehicles in the path from the source to the region of interest. Simulation results evaluated in scenarios of various densities have shown that it is possible to reduce the number of messages transmitted with a high delivery ratio.