MVA: An Interactive Assistant Communication Scheme in Blind Area of VANET

In Vehicular ad hoc networks (VANETs), the current three primary wireless network routings, i.e. DSDV, AODV and DSR, are widely utilized to propagate information. In this paper, we study such a scenario: in the network which consists of both vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communications, vehicles are moving on highway. When the vehicle enters into the blind area between two base stations, it is trapped because of various reasons. However, the vehicle needs to connect to the Internet urgently. In order to assist this trapped vehicle to maintain its network communication as possible, we propose an interactive network model and relevant scheme -- Moving Vehicle Assistance (MVA), which expropriates part of communication capabilities of the passing relay vehicles to assist the trapped vehicle to propagate data in the way of Store-Carry-Forward. We simulate the MVA model and scheme in NS2. The simulation results show that the AODV and DSR routings perform not well in the blind area of VANET. And the proposed MVA scheme achieves up to an approximate 450% and 300% increment in the average amount of network flow performance and in the average bandwidth performance than DSDV routing, respectively.