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Using Poisson processes to model lattice cellular networks

Bartlomiej Blaszczyszyn 1 Mohamed Kadhem Karray 2 Holger Paul Keeler 1 
1 DYOGENE - Dynamics of Geometric Networks
DI-ENS - Département d'informatique - ENS Paris, Inria Paris-Rocquencourt, CNRS - Centre National de la Recherche Scientifique : UMR8548
Abstract : An almost ubiquitous assumption made in the stochastic-analytic study of the quality of service in cellular networks is Poisson distribution of base stations. It is usually justified by various irregularities in the real placement of base stations, which ideally should form the hexagonal pattern. We provide a different and rigorous argument justifying the Poisson assumption under sufficiently strong log-normal shadowing observed in the network, in the evaluation of a natural class of the typical-user service-characteristics including its SINR. Namely, we present a Poisson-convergence result for a broad range of stationary (including lattice) networks subject to log-normal shadowing of increasing variance. We show also for the Poisson model that the distribution of all these characteristics does not depend on the particular form of the additional fading distribution. Our approach involves a mapping of 2D network model to 1D image of it "perceived" by the typical user. For this image we prove our convergence result and the invariance of the Poisson limit with respect to the distribution of the additional shadowing or fading. Moreover, we present some new results for Poisson model allowing one to calculate the distribution function of the SINR in its whole domain. We use them to study and optimize the mean energy efficiency in cellular networks.
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Submitted on : Friday, January 18, 2013 - 12:23:01 PM
Last modification on : Thursday, March 17, 2022 - 10:08:44 AM
Long-term archiving on: : Saturday, April 1, 2017 - 6:59:10 AM


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Bartlomiej Blaszczyszyn, Mohamed Kadhem Karray, Holger Paul Keeler. Using Poisson processes to model lattice cellular networks. INFOCOM - The 32nd IEEE International Conference on Computer Communications, Apr 2013, Turin, Italy. ⟨10.1109/INFCOM.2013.6566864⟩. ⟨hal-00721994v2⟩



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