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21824 Improving information dissemination in sparse vehicular networks by adding satellite communication
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Spijker, H.K. and Kloiber, B. and Strang, T. and Heijenk, G.J. (2012) Improving information dissemination in sparse vehicular networks by adding satellite communication. In: 2012 IEEE Intelligent Vehicles Symposium, IV'12, 3-7 Jun 2012, Alcalá de Henares, Spain. pp. 611-617. IEEE. ISBN 978-1-4673-2118-1

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Information dissemination in pure Vehicular Ad Hoc NETworks (VANETs) such as ITS-G5 becomes problematic when the network is sparse. In situations where the number of vehicles, that can act as a communication node, is insufficiently low, e.g. in rural areas, during night-time or because of a low market penetration of the technology in the early years of market introduction, certain range limits (unavailability of for- warding nodes) or timing limits (store-and-forward techniques) are stressed. Due to the limited communication range, VANETs start to build separated clusters, if the density of equipped vehi- cles is too low. Consequently, information dissemination without delay-massive store-and-forwarding is only possible within one cluster, but not beyond. This paper investigates the integration of Car-to-Car (C2C) with an additional satellite communication technology, referred to as Car-to-Satellite (C2S). A realistic sparse vehicular network scenario has been simulated and evaluated with respect to the in-time reception of safety-related information. The results show that information dissemination can be significantly improved through a limited number of ve- hicles which are additionally equipped with satellite terminals. In fact, even the market introduction of VANET-based ITS can be significantly accelerated with just a few vehicles equipped with non-VANET communication technology.

Item Type:Conference or Workshop Paper (Full Paper, Talk)
Research Group:EWI-DACS: Design and Analysis of Communication Systems
Research Program:CTIT-WiSe: Wireless and Sensor Systems
ID Code:21824
Deposited On:31 May 2012
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