Performance Evaluation of GPSR and AODV Routing Protocols for High Vehicular Density VANETs

Álvaro T. Amaya, Alexandre Pohl, Ricardo Lüders

DOI: 10.14209/sbrt.2021.1570724253

Evento: XXXIX Simpósio Brasileiro de Telecomunicações e Processamento de Sinais (SBrT2021)

Keywords: Vehicular ad-hoc network Routing protocols High traffic density Hello messages

Abstract

The vehicular Ad-hoc network (VANETs) is a challenging scenario for routing protocols. The high mobility of nodes is responsible for fast changes of topology and frequent interruptions of links. To cope with this challenge, Greedy Perimeter Stateless Routing (GPSR) and Ad-hoc On-demand Distance Vector (AODV) routing protocols have been devised and widely employed in VANETs. However, most approaches have not properly studied the impact of transmission rates and the effect of time intervals of beacons (Hello messages) in the performance of these protocols. In order to address this impact, this work presents an evaluation of GPSR and AODV protocols in an urban scenario of high vehicular density regarding transmission rates and Hello messages intervals. Results show better performance of GPSR for high transmission rate and high traffic density when compared with AODV. Likewise, GPSR achieves more benefits and fewer impacts from Hello messages than AODV.

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