Emergent rewirings for cascades on correlated networks

Details Emergent rewirings for cascades on correlated networks Emergent rewirings for cascades on correlated networks

2005-03-25

arxiv.org/abs/cond-mat/0503615v1

Physics

Condensed Matter

Disordered Systems and Neural Networks

5 pages, 4 figures, 1 table

Scientific paper

Recent studies of attacks on complex networks suggest that small initial breakdowns can lead to global cascades of overload failures in communication, economic trading, and supply-transportation systems, considering the defense methods is very important to reduce the huge damage. The propagation of failures depends on the flow dynamics such as packet routing of physical quantities and on the heterogeneous distribution of load or capacity in many realistic networks which have topological properties of scale-free (SF) and degree-degree correlations. We introduce a defense strategy based on emergent rewirings between neighbors of the attacked node, and investigate the size of cascade on SF networks with controllable correlations. We show the differences of damaged size for the types of correlations and the effective range of tolerance in the defense methods. They can be performed on the current wireless communication or dynamic allocation technologies.

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