Efficient Routing by Minimizing End to End Delay in Delay Tolerant Enabled VANETs

Vehicular ad hoc networks (VANETs) are special case of mobile ad hoc networks (MANETs) with predictable mobility constraints. In VANETs, non real-time applications are appreciated as compared to real time applications because of very frequent network partitions caused by high node mobility. The focus of this paper is on Delay tolerant networks (DTNs). DTNs are special type of networks which follows the approach of store and forward. In DTNs, the route is not established before the transmission of data. The vehicles store data and transmit it whenever there is an opportunity to transmit data i.e. a vehicle in desired direction is available. This is also known as message ferrying technique. In this paper, the mechanism to select proper ferry to forward the data is proposed which is based on fastest ferry and considers dynamic speed of ferries. The selection of fastest ferry in variable blocks makes it adaptive to accommodate high speed vehicles which provide maximum packet delivery ratio.