Títol:
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Dynamical properties of model communication networks
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Autor/a:
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Guimerà Manrique, Roger; Arenas, Àlex; Díaz Guilera, Albert; Giralt, Francesc
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Altres autors:
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Universitat de Barcelona |
Abstract:
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We study the dynamical properties of a collection of models for communication processes, characterized by a single parameter $\xi$ representing the relation between information load of the nodes and its ability to deliver this information. The critical transition to congestion reported so far occurs only for $\xi=1$. This case is well analyzed for different network topologies. We focus of the properties of the order parameter, the susceptibility and the time correlations when approaching the critical point. For $\xi<1$ no transition to congestion is observed but it remains a cross-over from a low-density to a high-density state. For $\xi>1$ the transition to congestion is discontinuous and congestion nuclei arise. |
Matèries:
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-Física matemàtica -Dinàmica molecular -Xarxes de comunicacions -Fenòmens crítics (Física) -Transformacions de fase (Física estadística) -Mathematical physics -Molecular dynamics -Communication networks -Critical phenomena (Physics) -Phase transformations (Statistical physics) |
Drets:
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(c) American Physical Society, 2002
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Tipus de document:
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Article Article - Versió publicada |
Publicat per:
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The American Physical Society
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