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Conference Papers Year : 2012

A packing model to estimate VANET capacity


In IEEE 802.11p VANET networks the transmission scheduling is distributed and asynchronous. The number of simultaneous transmitters is thus closely related to the CSMA/CA mechanism which limits the spatial reuse of the channel. The capacity is bounded by a constant $C$ whatever the number of nodes and the type of routing schemes. This paper aims to evaluate the spatial reuse of a VANET (using CSMA/CA) and to deduce its maximum capacity. The proposed model is an extension of a classical \textit{packing problem}. We prove formally that the intensity of the maximum number of simultaneous transmitters (the maximal spatial reuse) converges to a constant and propose a simple estimate of this constant. Realistic simulations show that the theoretical capacity offers a very tight bound on the real capacity of the network.
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Dates and versions

hal-00728014 , version 1 (04-09-2012)


  • HAL Id : hal-00728014 , version 1


Anh Tuan Giang, Anthony Busson, Alain Lambert, Dominique Gruyer. A packing model to estimate VANET capacity. IWCMC 2012, Aug 2012, Chypre, Cyprus. pp.1-6. ⟨hal-00728014⟩
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