Data Dissemination of Vehicular Ad-Hoc Network in Highway Scenario

Vehicular Ad Hoc Networks (VANETs) have emerged as an exciting research and application area. Increasingly vehicles are being equipped with embedded sensors, processing and wireless communication capabilities. This has opened major possibilities for powerful and potential life-changing applications on safety, efficiency, comfort, public collaboration and participation, while they are on the road. The high mobility of vehicles during the road time is a very important issue to be studied and used in VANETs design in order to have high reliability and data exchange during moving. In this paper, several types of routing protocols are used in order to study the effect of routing protocol for data dissemination in VANET which is the process of distributing a certain amount of information to the users such as vehicle drivers or mobile users especially in wireless networks by simulating the Packet Delivery Ratio (PDR) and Routing load for different number of network densities. The simulation results for the PDR performance say that the Optimized Link State Routing Protocol (OLSR) routing protocol is totally unsuitable for gives high PDR ratio especially in the case of higher percent of communication pairs in networks, where no more than 35% of data packets delivered successfully. Also the results show that the Ad Hoc On-Demand Distance Vector (AODV) in general has higher routing request, especially for larger network size and higher percentage of communication pairs and the OLSR and Dynamic Source Routing (DSR) have a comparatively stable routing load overhead.