Simulation of Information Dissemination using Flooding in VANET

Abstract

The rapid advancement in communication technologies, Intelligent Transportation System (ITS) has also gained its significance, aiming to improve efficiency and safety of transportation activities. Vehicle to Vehicle(V2V) and Vehicle to Infrastructure(V2I) are the main contributors of ITS architecture. The term used for communication among the vehicles is referred as Vehicular Ad-Hoc network(VANET), VANET is special kind of Mobile Ad-hoc Network(MANET), rapid change in mobile nodes(car/vehicles) in case of VANET makes it different from MANET, while sharing all other features of MANET. VANET has many advantages including minimizing traffic, reducing car accidents, co-operative awareness, environmental safety by monitoring CO2 emission. For successful utilization of this special network there is a need of method through which these nodes can communicate. The information flow needs to be maintained among all vehicles. The nature of this network is ad-hoc and highly mobile in nature, so routing is bit complex for enabling information exchange. Broadcasting comes as a solution to efficiently disseminate the information among nodes. However, there are various complexities involved in broadcasting. This paper explains and implements the simplest flooding-based broadcasting protocol. For developing protocols and algorithms to achieve above stated features out of VANET/ITS one need to test them through simulation. There are lots of Network simulators available which can simulate ad-hoc network but again coming to the complex part of VANET it has dense nodes with high mobility in VANET, obviously it is not possible through network simulators to simulate city traffic where each vehicle is considered as node, so a need to model the city scenario into nodes and edges structure evolves which can be further fed to network simulators to test algorithms efficiency and protocols correctness, in proposed work we will be modelling the scenario of Clock Tower, Dehradun city, the route contains two lane roads and other link roads along with buildings and parks. Modelling will be done using SUMO and Open StreetMap will be converted to SUMO networks and finally simulations will be done using VEINS through OMNET++.