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

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.