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Efficient routeing in Poisson small-world networks

Part of: Geometric probability and stochastic geometry Graph theory Algorithms - Computer Science

Published online by Cambridge University Press:  14 July 2016

M. Draief  and
A. Ganesh
M. Draief*
Affiliation:
University of Cambridge
A. Ganesh*
Affiliation:
Microsoft Research
*
∗Postal address: Statistical Laboratory, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge CB3 0WB, UK. Email address: m.draief@statslab.cam.ac.uk
∗∗Postal address: Microsoft Research, 7 J J Thomson Avenue, Cambridge CB3 0FB, UK. Email address: ajg@microsoft.com
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Abstract

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In a recent paper, Kleinberg (2000) considered a small-world network model consisting of a d-dimensional lattice augmented with shortcuts. The probability of a shortcut being present between two points decays as a power, r-α, of the distance, r, between them. Kleinberg showed that greedy routeing is efficient if α = d and that there is no efficient decentralised routeing algorithm if α ≠ d. The results were extended to a continuum model by Franceschetti and Meester (2003). In our work, we extend the result to more realistic models constructed from a Poisson point process wherein each point is connected to all its neighbours within some fixed radius, and possesses random shortcuts to more distant nodes as described above.

Keywords

Small worldrouteing

MSC classification

Primary: 60D05: Geometric probability and stochastic geometry 68W15: Distributed algorithms
Secondary: 05C80: Random graphs
Type
Research Article
Information
Journal of Applied Probability , Volume 43 , Issue 3 , September 2006 , pp. 678 - 686
Copyright
© Applied Probability Trust 2006 

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