QoS in vehicular and intelligent transport networks using multipath routing

Vehicular ad hoc networks (VANETs) consist of an spontaneous association of a group of vehicles that dynamically change their position and exchange data between each other, regarded as autonomous network segments with flat addressing schemes. However, its study has shown the benefits obtained by interconnecting them to fixed network segments and to the Internet. In this article the performance of a multipath routing protocol and its impact on global quality of service metrics will be analyzed by means of simulating different schemes of data transmision in a hybrid IPv6 VANET. The scenario consists of a fixed network segment with a central server and two gateways interconnecting two hierarchical VANET segment whose nodes show a high degree of mobility, such as vehicles in an urban environment.