Análise sobre o impacto da densidade veicular, da carga da rede e da mobilidade no desempenho de protocolos de roteamento para redes veiculares

Abstract

Advances in mobile computing and wireless communications have made possible the development of the Intelligent Transportation System, which contain the vehi- cular networks. There, routing is a challenging task due to the high node mobility, the instability of wireless links and the diversity of scenarios. For this reason, several routing protocols have been designed with the goal of solving one or more speci c problems of each scenario. However, although there are several proposed solutions to the routing problem in vehicular networks, none of them has achieved a satisfac- tory performance in more than one scenario, such as urban and highway. Thus, in this work, we rst analyze with simulations the impact of density, the network load and the mobility pattern in the performance of routing protocols for these networks. Then, we provide new directions for designing e cient vehicular network routing protocols, able to adapt to urban and highway scenarios. To achieve this goal, four existing protocols were evaluated in urban and highway scenarios.