Modeling and optimization of CSMA/CA in VANET

Anh Tuan Giang, Anthony Busson () and Marco Di Renzo
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Anh Tuan Giang: Université Paris Sud - Supélec - CNRS
Anthony Busson: Université Lyon 1 - ENS-Lyon - INRIA
Marco Di Renzo: Université Paris Sud - Supélec - CNRS

Annals of Operations Research, 2016, vol. 239, issue 2, No 10, 553-568

Abstract: Abstract In this paper, we propose a simple theoretical model to compute the maximum spatial reuse feasible in a VANET. We focus on the ad hoc mode of the IEEE 802.11p standard. Our model offers simple and closed-form formulas on the maximum number of simultaneous transmitters, and on the distribution of the distance between them. It leads to an accurate upper bound on the maximum capacity. In order to validate our approach, results from the analytical models are compared to simulations performed with the network simulator NS-3. We take into account different traffic distributions (traffic of vehicles), and study the impact of this traffic on capacity. An application of this work is the parameterization of the CSMA/CA mechanism. Such an optimization is developed at the end of this paper.

Keywords: Markov model; Packing problems; Wireless communications; Capacity; Vehicular ad hoc network; CSMA/CA (search for similar items in EconPapers)
Date: 2016
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DOI: 10.1007/s10479-014-1610-x

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