Uma Avaliação de Desempenho de Modelos de Propagação para Redes Veiculares Urbanas

The design of vehicular networks requires in-depth knowledge of signal behavior in the system, allowing to optimize the network performance for specific scenario. This paper aims to analyze the influence of propagation models on the performance of a vehicle-to-infrastrucutre communication. To this end, we use a network simulator configured based on real measurements that characterize the propagation environment. Performance is assessed by analyzing the delays, contact time, and packet delivery rate in the system. The results show that the scenario evaluated is best described by the Log-Distance model. In addition, there are differences on the values of delay, contact time and packets delivery rate obtained when the vehicle moves towards and away from the Road Side Unit (RSU). The best performance is reached when the vehicle moves towards the RSU.