A Reduced Beacon Routing Protocol for Inter-Vehicle Communications

Andrey Silva, K M Niaz Reza, Aurenice Oliveira, Aldebaro Klautau

DOI: 10.14209/sbrt.2019.1570559240

Evento: XXXVII Simpósio Brasileiro de Telecomunicações e Processamento de Sinais (SBrT2019)

Keywords:

Abstract

Vehicles on cooperative inter-vehicular applications establish a mutual awareness of their presence by periodically broadcasting beacon messages. However, high vehicle density and poorly controlled beaconing leads to congested channel and degradation of system performance. Periodic beaconing may also lower the delivery rate of beacons and other types of messages. In this paper, we describe a beaconing rate control approach considering the density of nodes during beacon forwarding and adjusting the successive beacon delay to mitigate the congestion and maximize the deliver efficiency of beaconing which contributes to a reduction of energy consumption, since less beacon packets are transmitted. Our strategy can be adopted for any beacon-based algorithms. Therefore, we selected the a widely adopted position-based routing protocol for VANETs know as Geographic Perimeter Stateless Routing (GPSR) to apply the proposed algorithm and evaluate the impact in the performance metrics. Our proposed algorithm shows performance improvement over standard GPSR related to the number of drops caused by collision and beacon load reduction which keeps the information accuracy.

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