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May 2003 Covering algorithms, continuum percolation and the geometry of wireless networks
Lorna Booth, Jehoshua Bruck, Massimo Franceschetti, Ronald Meester
Ann. Appl. Probab. 13(2): 722-741 (May 2003). DOI: 10.1214/aoap/1050689601


Continuum percolation models in which each point of a two-dimensional Poisson point process is the centre of a disc of given (or random) radius $r$, have been extensively studied. In this paper, we consider the generalization in which a deterministic algorithm (given the points of the point process) places the discs on the plane, in such a way that each disc covers at least one point of the point process and that each point is covered by at least one disc. This gives a model for wireless communication networks, which was the original motivation to study this class of problems.

We look at the percolation properties of this generalized model, showing that an unbounded connected component of discs does not exist, almost surely, for small values of the density $\lambda$ of the Poisson point process, for any covering algorithm. In general, it turns out not to be true that unbounded connected components arise when $\lambda$ is taken sufficiently high. However, we identify some large families of covering algorithms, for which such an unbounded component does arise for large values of $\lambda$.

We show how a simple scaling operation can change the percolation properties of the model, leading to the almost sure existence of an unbounded connected component for large values of $\lambda$, for any covering algorithm.

Finally, we show that a large class of covering algorithms, which arise in many practical applications, can get arbitrarily close to achieving a minimal density of covering discs. We also construct an algorithm that achieves this minimal density.


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Lorna Booth. Jehoshua Bruck. Massimo Franceschetti. Ronald Meester. "Covering algorithms, continuum percolation and the geometry of wireless networks." Ann. Appl. Probab. 13 (2) 722 - 741, May 2003.


Published: May 2003
First available in Project Euclid: 18 April 2003

zbMATH: 1029.60077
MathSciNet: MR1970284
Digital Object Identifier: 10.1214/aoap/1050689601

Primary: 60D05, 60K35, 82B26, 82B43, 94C99

Rights: Copyright © 2003 Institute of Mathematical Statistics


Vol.13 • No. 2 • May 2003
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