Improving information dissemination in sparse vehicular networks by adding satellite communication


Kloiber, Bernhard and Strang, Thomas and Spijker, Hanno and Heijenk, Geert (2012) Improving information dissemination in sparse vehicular networks by adding satellite communication. In: IEEE Intelligent Vehicles Symposium, IV 2012, 3-7 June 2012, Alcalá de Henares, Spain.

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Abstract: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 Item
Copyright:© 2012 IEEE
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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