Difusão Periódica Multinomial Ótima em VANETs Slotted Aloha Multicanal com Restrição Temporal

Geovanny Lucas de Lima Paulino, João P. J. V. da Silva, Renato M. de Moraes

DOI: 10.14209/SBRT.2020.1570649658

Evento: XXXVIII Simpósio Brasileiro de Telecomunicações e Processamento de Sinais (SBrT2020)

Keywords: Redes Ad Hoc Slotted Aloha VANETs

Abstract

This paper describes a periodic rebroadcasting protocol for safety (warning) messages delivery in vehicular ad hoc networks (VANETs), following a multinomial probabilistic distribution modeling to calculate the successful delivery probability. The method uses Slotted Aloha as medium access control (MAC) protocol employing multiple communication channels. A mathematical model of the multinomial approach is conceived, and also simulation is performed to validate the model and generate results. This approach achieves successful delivery probability of 99,9%, in a time deadline of 100 ms, attending the safety requirements for VANETs, and outperforms the previous related proposed approaches.

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