Optimisation Des Communications V2V Et V2I Dans Un Réseau de Véhicules Opéré

Download or read book Optimisation Des Communications V2V Et V2I Dans Un Réseau de Véhicules Opéré written by and published by . This book was released on 2010 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a component of the intelligent transportation system (ITS) and one of the concrete applications of mobile ad hoc networks, vehicular networks are attracting an extensive attention from both academia and industry. The most important feature of these networks is their ability to extend the horizon of drivers and on-board devices and, thus, to make the time spent in vehicle enjoyable to both driver and passengers and improve road traffic safety and efficiency. Nevertheless, it is not usually casy to develop such systems due to the constraints related to the vehicular environment such as the road's architecture and the high mobility of nodes. These different properties offer two major challenges which are (i) offering sufficient QoS, and (ii) limiting the generated overhead. In this thesis, we focused on both vehicle to vehicle communication and vehicle to infrastructure communication. We tried to propose some optimized solutions that improve the quality of service in vehicular networks while generating a limited overhead and make easier the deployment of new services. First, we focused on the address configuration and mobility management in vehicular networks which are basic issues that act as pedestals to all other items. We proposed a multicast-communication-based solution to minimize the handover delays. Then, we bend over to study three major items in the vehicular network context : (i) data dissemination, where we proposed a local intersection-aware data dissemination protocol called ROD, (ii) data collection, where we proposed CGP protocol. This later is based on both cellular network and V2V communications, and (iii) self organization, where we proposed a self-organizing architecture based on geographic clustering. The performances of the different contributions were evaluated via simulations studies. Some of them were also evaluated analytically or/and via on-road real tests.