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EURASIP Journal on Wireless Communications and Networking

, 2011:174

First Online: 18 November 2011Received: 29 June 2011Accepted: 18 November 2011


In this article, we investigate the network transition between non-saturation and saturation regimes for a Vehicular Ad hoc Network VANET which is composed of mobile nodes. We combine vehicular traffic theory, queuing model, and Markov chain to evaluate the performance of the network under spatial or networking saturation for multiple data classes over control channel and service channel. Our results indicate that the vehicle density growth can result in saturation of wireless medium around the roadside unit RSU, further resulting in buffer overflows at on board units OBUs. We also investigate the network saturation points for different transmission ranges of a RSU. Our results show that RSU-s transmission coverage has to be chosen with respect to data patterns of OBUs, minimal distance between vehicles, and number of lanes in order to avoid network saturation condition.

KeywordsIEEE 802.11p vehicular traffic theory free-flow regime network saturation Electronic supplementary materialThe online version of this article doi:10.1186-1687-1499-2011-174 contains supplementary material, which is available to authorized users.

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Author: Serkan Öztürk - Jelena Mišić - Vojislav B Mišić


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