Re-Broadcast AODV(reAODV) Based Routing Protocol Modification Over AODV for VANET In City Scenario

Re-Broadcast AODV(reAODV) Based Routing Protocol Modification Over AODV for VANET In City Scenario

Soumen Saha, Utpal Roy, D.D. Sinha
Copyright: © 2018 |Pages: 15
DOI: 10.4018/IJSE.2018010105
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Abstract

Vehicular ad-hoc networks or VANETs are a new method of training an ad-hoc network in traffic. The authors have numbers of routing algorithms on a MANET. But none of them works efficiently in a VANET with respect to being a safe and secure transport system. The authors have proposed a modification on an AODV routing algorithm for VANET with the introduction of the double-ended queue or dqAODV in a request packet header. A comparable good result was found in the throughput. In the present work, the authors introduce a modification of an original AODV by applying a partial re-broadcast of the request packet (RREQ) of an AODV. They found a comparable result in the throughput of the packet delivery aspect for this work with the original algorithm and dqAODV. This is compared to the complexity in the original AODV algorithm.
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1. Introduction

In present traffic, world traffic system is evolving with automation. Hence, we need some extra safety and it is much more complicated than usual traffic system. Taking consideration all these aspects, a new type of ad-hoc network communication is introduced. It is called VANET. This type of network communication is classified into three different way as shown in Figure 1.

Figure 1.

Type of VANET

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VANET is modified to Mobile Ad-hoc Network or MANET. It is a self-regulatory and automatic wireless communication system of the network. We required some better identification, road traffic condition safety, etc., of each node or vehicle to drive this network. In this approach, the vehicles move on client-server approach and they need to exchange data or information with each other. We have several routing protocols (Figure 2) to perform this operation.

Figure 2.

VANET routing algorithm classification

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1.1. Proactive Routing Protocol

This is a table-driven approach it needs to keep all routing information before actual transmission starts. But, it is the worst approach for a dynamic structure. This also produces large space and time complexity. We have some well-known Proactive routing protocol such as FSR, OLSR, DSDV (Modak, Saha, Roy, & Sinha, 2014; Perkins, Belding-Royer & Das, 2003; Johnson, Hu & Maltz, 2007; Gerla, Hong & Pei, 2002; Clausen & Jacquet, 2003).

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