A comprehensive performance analysis of VANETs routing protocols in different deployment strategies

摘要

Vehicular ad-hoc network (VANET) is a type of mobile ad-hoc network, in which vehicles constitute nodes of a temporary, rapidly changing wireless network, without any fixed infrastructure. In this kind of networks the communication performance is highly dependent on the routing policy. In this study, we examine through simulation, a set of routing protocols used in MANETS in order to identify which are best suited in the case of high mobility environments imposed by VANETs. We consider two specific scenarios (city and highway) and specify three density levels (low, medium and high). We perform extensive simulations using the network simulator NS2 and VanetMobiSim under the Fedora Linux platform. A set of practical conclusions are derived on the basis of the most used evaluation measures (PDR and E2ED) undertaken for five representative types of routing protocols.