Vegni “Performance Evaluation of Broadcast Data Dissemination over VANETs

Abstract—In this paper we present a performance evaluation study of a simple broadcast data dissemination technique in new emerging Vehicular Ad hoc Networks (VANETs). VANETs differ from traditional Mobile Ad hoc NETworks (MANETs) for an high dynamism of the network topology, and for different traffic and mobility patterns. For all these reasons, routing protocols designed for MANETs cannot always be applied in an vehicular environment, and lack of effective network performance. For safety and emergency message applications, broadcast data dissemination is an important key-factor in VANETs. At this aim, this work analyzes vehicular network performances in terms of throughput and delays, for different traffic scenarios. Index Terms—Vehicular Ad hoc Networks, Intelligent Trans-portation System, IEEE 802.11, broadcast protocol