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Percolation in the signal to interference ratio graph. (English) Zbl 1154.82311
Summary: Continuum percolation models in which pairs of points of a two-dimensional Poisson point process are connected if they are within some range of each other have been extensively studied. This paper considers a variation in which a connection between two points depends not only on their Euclidean distance, but also on the positions of all other points of the point process. This model has been recently proposed to model interference in radio communications networks. Our main result shows that, despite the infinite-range dependencies, percolation occurs in the model when the density $$\lambda$$ of the Poisson point process is greater than the critical density value $$\lambda_c$$ of the independent model, provided that interference from other nodes can be sufficiently reduced (without vanishing).

##### MSC:
 82B43 Percolation 60K35 Interacting random processes; statistical mechanics type models; percolation theory 90B18 Communication networks in operations research
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##### References:
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