DBR-LS: Distance based routing protocol using location service for VANETs

Vehicular Ad-Hoc Network mainly involves Vehicle to Vehicle (V2V) and Vehicle to Infrastructure (V2I) communication. This communication accelerates in reducing number of accidents, avoiding traffic congestion, enhancing the transport facility with the aid of infotainment and entertainment application. One of the major challenges of VANET application is in routing the packet in efficient manner since the network topology is dynamic. In this paper, proposed solution enhances the efficacy of Distance Based Routing [1] protocol by using Location Service (DBR-LS) which is designed especially for Vehicular Ad hoc Networks (VANET). The proposed algorithm adopts map based location technique. In DBR-LS, a connectivity graph based on the intervehicular distance, the duration of connectivity between neighbouring vehicles, the information from the digital map and location of destination vehicle from location service are collectively used to route the data. In proposed protocol the network traffic is reduced due to the relative position information of the neighbouring vehicles and location servers. The stability of the route path is high due to intervehicular distance based nexthop selection technique as implemented in this protocol. The proposed routing protocol is simulated using NS2 simulator to analyse the efficiency and effectiveness of the protocol.