Mobility Aware Broadcast Routing Mechanism in VANET

From several past decades message (information) dissemination using broadcasting has been emerging subject of research in vehicular ad-hoc network (VANET) field. Broadcasting is the most popular technique for emergency information message transmission from one vehicle to another vehicle by means of inter-vehicular communication. VANETs does not have physical backbone to transmitting the message but the concept of virtual backbone in mobile ad-hoc network is applicable to VANET environment. Virtual backbone can be created by constructing dominating set using any vehicle selection strategy and then applying selective vehicles to broadcast information message. Even though reducing the size of broadcasting node there still problem of broadcast storm and flooding problem in the VENET network. This paper proposes to reduce the problem of broadcast storming problem in VANET environment using probabilistic selection approach by selecting a single node from dominating set there by reducing rebroadcast node and applying dynamic broadcasting interval to enhance reliability of VANTE. We implement and compare our proposed scheme with standard existing approach of connected dominating set(CDS) as well as navigation route based minimum dominating set algorithm(NRMDS). Comparing simulation results to standard approaches shows that proposed scheme has a significant batter performance in terms of packet delivery ratio, end-to-end delay as well as reducing network overhead.