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The Scalability Problem of Vehicular Ad Hoc Networks and How to Solve it

Timo Kosch, Christian Adler, Stephan Eichler, Christoph Schroth & Markus Strassberger

abstract Inter-vehicle communication (IVC) and its diverse possibilities of application have led to great interest both in research and industry. Especially the dissemination of active safety messages generated by cooperative and context sensitive applications in vehicular ad hoc networks (VANETs) may significantly improve passenger safety and comfort. One of the main challenges inherent to the deployment of
VANETs is operability, both in lowly interconnected and in highly overloaded networks. This scalability problem is not comprehensively addressed by existing approaches as they only focus on parts of the problem. This article shows how a relevance based, altruistic communication scheme helps realizing scalability by optimizing the application benefit and the bandwidth usage. In-vehicle and inter-vehicle message selection are based on a relevance function that makes use of the current context and the content of the messages. A novel, proprietary cross-layer architecture and an IEEE 802.11e-based architecture can be used to implement the scheme. Extensive simulations have been conducted to show the functionality of the approach both for sparse and dense
networks.

http://www.comsoc.org/livepubs/pci/public/2006/oct/index.htm l
http://www.christoph-schroth.de

   
type journal paper
   
keywords Vehicular Ad-hoc Networks, Scalability, Quality-of-Service, VANETs, Inter-vehicular communications, IVC, Car-to-Car Communication, SAP, wireless communications
   
project Pre-Drive C2X
language English
kind of paper journal article
date of appearance 1-10-2006
journal IEEE Wireless Communications Magazine
publisher IEEE XPlore
ISSN 1536-1284
ISSN (online) 1536-1284
volume of journal 13
number of issue 5
page(s) 6
review double-blind review
   
citation Kosch, T., Adler, C., Eichler, S., Schroth, C., & Strassberger, M. (2006). The Scalability Problem of Vehicular Ad Hoc Networks and How to Solve it. IEEE Wireless Communications Magazine, 13(5), 6.