A reliable path selection for vehicular Adhoc Network using Reliability matrix and connectivity matrix

摘要

Vehicular Ad Hoc Network (VANET) is a subgroup of mobile ad hoc network (MANET). It is an emerging new technology to exchange information between vehicles to vehicles. VANETs are considered as one of the most noticeable technologies for improving the efficiency and safety of transportation systems. VANET mainly used to exchange traffic information between the vehicles and prevent accident. In VANETs the high mobility of the nodes is the major concern. This dynamic topology makes the route unstable and unreliable for exchange of information or messages among the vehicles in the ad hoc network. To enhance the performance and throughput of the VANETs, routes between nodes must be reliable, less overhead and stable. Most of the current routing protocols use the traditional hop count as a metric to distinguish between routes, but still overhead problem is there in nodes. In this paper we proposed a reliability metrics (RM) and Connectivity metrics (CM) as a routing metrics to determine the best path from source to destination vehicle. This metrics were used to reduce the routing overhead and find the reliable path from source to destination. In VANET estimation of reliable path is a challenging task because the routing is depends upon many parameters like direction, number of hops, transmission range, node density and speed of the nodes.