International Journal of Computer Networks and Applications (IJCNA)

Published By EverScience Publications

ISSN : 2395-0455

International Journal of Computer Networks and Applications (IJCNA)

International Journal of Computer Networks and Applications (IJCNA)

Published By EverScience Publications

ISSN : 2395-0455

Lane Id based Selective Emergency Message Forwarding Scheme for VANET

Author NameAuthor Details

Getamesay Haile, Dereje Yohannes, Kebebew Ababu

Getamesay Haile[1]

Dereje Yohannes[2]

Kebebew Ababu[3]

[1]Faculty of Computing, Jimma Institute of Technology, Jimma University, Jimma, Ethiopia

[2]Department of Computer Engineering, Addis Ababa Science & Technology University, Ethiopia

[3]Faculty of Computing, Jimma Institute of Technology, Jimma University, Jimma, Ethiopia

Abstract

In this paper we proposed a novel emergency message forwarding scheme for VANET (Vehicular Ad-hoc Network) which can capable of tackling broadcast storm problem by reducing unwanted network traffic. Safety application of VANET by its nature is time critical and it needs low delay and needs to be disseminated on time. So applying broadcasting technique is the best option in safety application for VANET. But applying simple broadcasting causes broadcast storm problem due to high number of unwanted network traffic. Unwanted network traffic happens when the number of nodes to rebroadcast the emergency message is increased. The numbers of forwarder node to re-transmit the emergency message have high effect on the network. So, one of the solution to reduce unwanted traffic is applying selective forwarding scheme to broadcast emergency message and minimize the number of forwarder node which rebroadcast the emergency message. The aim of this paper is to design lane Id based selective emergency message forwarding scheme (LSEMF) which can minimize the number of forwarder node without affecting the notified vehicles with high data delivery ratio and low overhead. The proposed forwarding scheme is a multi-hop selective forwarding scheme in which vehicles found in the same lane with the source of emergency message and found behind the accident can have high priority to be selected as a forwarder node. To select forwarder node we combine distance, lane id and travel direction of vehicle. To simulate this work, we use SUMO simulator for generating mobility and OMNeT++ for network simulator by using Veins framework. Finally we compare our result with counter based scheme and distance based scheme. From the simulation result the proposed scheme has better performances than the existing schemes in terms of data delivery ratio, overhead and forwarder node ratio.

Index Terms

VANET

Selective Forwarding

Emergency Message Dissemination

Forwarder Node Selection

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