A Novel Region Based Multipath Routing Algorithm for Vehicular Ad-hoc Networks

Abstract

Multimedia communication is a desirable medium to provide traffic information, news, advertisements, etc. to people on-the-road. Due to the high mobility and dynamic topology of Vehicular Ad-hoc Network (VANET) an open question is whether it is feasible to support video streaming services using license-free wireless communications between vehicles and road-side-units. In VANET, safety application and user Internet accessing related application are expected to be supported. VANET is an enhanced form of Mobile Ad-hoc Network (MANET), where communicating nodes are replaced by moving vehicles. VANETs promise many improvements in terms of accident avoidance and in better utilization of roads and resources such as fuel and time. In this paper, propose Region based Multipath using clustering routing algorithm (RMCRA) for inter cluster communications that is clustering-based scheme is applied for data transmission in VANET in which a cluster head (CH) selection and static cluster server taking density of road-network and traffic as the parameter. In this paper RMCRA proposed technique compare with existing technique Locations based Multipath Flooding (LMF) using four parameters i.e traffic sent and received, throughput, packet delay variation and packet dropped. Nodes of vehicular ad hoc network do not pose power challenges as posed by nodes of mobile ad hoc network. Hence, new clustering algorithms are developed for vehicular ad hoc network which aim for stable and effective clusters in the network.Keywords-VANET, RMCRA, LMF, Clustering, throughput, packet delay variation and packet dropped. I. INTRODUCTIONMany people lose their life and/or are injured due to accidents or unexpected events taking place on road networks. Besides traffic jams, these accidents generate a tremendous waste of time and fuel. Undoubtedly, if the vehicles are provided with timely and dynamic information related to road traffic conditions, any unexpected events or accidents, the safety and efficiency of the transportation system with respect to time, distance, fuel consumption and environmentally destructive emissions can be improved. VANETs are self-organizing networks established among vehicles equipped with communication facilities. The equipped vehicles are network nodes so that each node can act as the source of data, destination for data and a network router [1]. Vehicular Ad Hoc Networks have recently emerged as an effective tool for improving road safety through propagation of warning messages among the vehicles in the network about potential obstacles on the road ahead. VANETs and MANETs have some similar characteristics such as short range of transmission low bandwidth, omnidirectional broadcast and low storage capacity. Fast changing network topology and varying communication conditions pose a great challenge for routing protocols being used in VANETs. For using routing protocols in VANET they should be robust, reliable, minimize latency and network load. For achieving more realistic results, we developed mobility models th...