CAPACITY ASSIGNMENT MODEL TO DEFENSE CASCADING FAILURES

JunJie Wu, H. J. Sun () and Z. Y. Gao
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H. J. Sun: School of Traffic and Transportation, Beijing Jiaotong University, Beijing 100044, P. R. China
Z. Y. Gao: School of Traffic and Transportation, Beijing Jiaotong University, Beijing 100044, P. R. China

International Journal of Modern Physics C (IJMPC), 2009, vol. 20, issue 07, 991-999

Abstract: How to alleviate the damages of cascading failures triggered by the overload of edges/nodes is common in complex networks. To describe the whole cascading failures process from edges overloading to nodes malfunctioning and the dynamic spanning clustering with the evolvement of traffic flow, we propose a capacity assignment model by introducing an equilibrium assignment rule of flow in artificially created scale-free traffic networks. Additionally, the capacity update rule of node is given in this paper. We show that a single failed edge may undergo the cascading failures of nodes, and a small failure has the potential to trigger a global cascade. It is suggested that enhancing the capacity of node is particularly important for the design of any complex network to defense the cascading failures. Meanwhile, it has very important theoretical significance and practical application worthiness in the development of effective methods to alleviate the damage of one or some failed edges/nodes.

Keywords: Routing mechanisms; traffic; complex networks; 89.75.-k; 89.75.Fb; 89.20.-a; 89.20.Hh (search for similar items in EconPapers)
Date: 2009
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Citations: View citations in EconPapers (1)

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DOI: 10.1142/S0129183109014126

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