Protocolo Baseado em Métricas de Redes Complexas para Mitigação de Tempestade de Broadcast

The broadcast storm is characterized by unwanted packet retransmission, causing frequent flooding, contention, and collisions that compromise network performance. This paper presents a new protocol for the dissemination of messages in vehicular networks through the observation and analysis based on complex network metrics. It is called CN-vP (Complex Network-vehicular Protocol). In order to mitigate the sending of unnecessary messages, the present work combined probabilistic and delay approaches together with a better knowledge of the network, in particular, the neighboring vehicles of a certain transmitter. Once the three best relays have been chosen, by means of the probabilistic calculation, waiting intervals are estimated, for each retransmission, in order to avoid packet flooding. The analysis of the results shows that the solution developed allows a more assertive decision making for the dissemination of messages in vehicle networks, thus mitigating the problem of broadcast storm.