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Communications dans les réseaux fortement dynamiques

Abstract : The vehicular networks are an emerging technology incorporating the latest technology of communications. Without infrastructure, network is a ad hoc network, a routing protocol must be used for inter-vehicular communications. We call this type of network, an vehicular ad hoc network (VANET). Our work is organized around two axes: the scalability and management of mobility in a highway context. That is why, we proposed an extension of the ad hoc routing protocol DSR for hybrid ad hoc networks (with a fixed infrastructure). The simulations with JIST/SWANS simulator show improved performance in terms of scalability, connectivity and network capacity. We have also established an analytical model to compare the scalability of two classes of routing protocols: reactive and geographical. We conclude that using a geographical routing protocol and its optimizations improves significantly the scalability. Finally, we propose a distributed algorithm of vehicular convoy formation to improve mobility management in a hybrid ad hoc network on a highways. We evaluated this algorithm using simulations and we found a good quality of convoys formation.
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Contributor : Florent Kaisser Connect in order to contact the contributor
Submitted on : Friday, August 27, 2010 - 9:26:55 AM
Last modification on : Wednesday, September 16, 2020 - 5:04:22 PM
Long-term archiving on: : Tuesday, October 23, 2012 - 3:10:54 PM


  • HAL Id : tel-00512021, version 1




Florent Kaisser. Communications dans les réseaux fortement dynamiques. Réseaux et télécommunications [cs.NI]. Université Paris Sud - Paris XI, 2010. Français. ⟨tel-00512021⟩



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