Effective Neighbor Discovery Based Routing in Emergency Vehicular Ad-Hoc Network (VANETs)

In recent years vehicular ad hoc networks (VANETs) reached the stage of continuous expansion and as well it is widely used in lots of Intelligent Transportation System (ITS) based applications. V ANETs in general have two kinds of transmission methods which is vehicle to vehicle or vehicle to roadside unit (RSU) so that it is very essential to focus on reducing the network delay and overhead during communication. Improvising the routing characteristics is the best solution to overcome such kinds of challenges in vehicular communication. For that purpose, in the article Effective Neighbor Discovery based Routing in Emergency VANETs (ENDRE) are concentrated which developed a hybrid routing prototype which is the combination of improved version of Geographic Routing Technique (GPRS) routing and Ad-hoc On-demand Distance Vector (AODV) routing. At the initial stage the process behind the communication among the vehicles and with the presence of RSU is clearly elaborated. Secondly the idea of EGPRS and it working functionalities are discussed. Finally Improved AODV routing is used to find the effective neighbor selection among the current vehicles which are present in its coverage area it each instant of time. The implementation of this hybrid routing protocol is done in NS2 with SUMO mobility and the parameters which are measuring to calculate its outcomes are End to end delay, routing overhead, packet delivery ratio and energy efficiency. As so to perform the comparative analysis the results are considered with the recent research works like RO-VANETs and SHACO-VANETs. From the outperformance it is shown that the proposed ENDRE achieved high efficiency with lower delay and routing overhead when compared with taken recent works.