Cascading Breakdown on Weighted Scale-Free Complex Networks
نویسندگان
چکیده
منابع مشابه
Cascading Breakdown on Weighted Scale-Free Complex Networks
Cascading breakdown on complex networks has attracted much attention in recent years since people have realized the great danger brought by cascading failures in real life networks. In this study we propose a simple model describing cascading breakdown generated by the redistribution of packet loads by congested links on weighted scale-free networks. A collapsed link, which has lost its functio...
متن کاملAttack vulnerability of scale-free networks due to cascading breakdown.
The possibility that a complex network can be brought down by attack on a single or a very few nodes through the process of cascading failures is of significant concern. Here we investigate a recent model for cascading failures in complex networks and uncover a phase-transition phenomenon in terms of the key parameter characterizing the node capacity. For parameter value below the phase-transit...
متن کاملCascading toppling dynamics on scale-free networks
We study avalanche dynamics on scale-free networks, following a power-law degree distribution, pd ðkÞ k ; through the Bak–Tang–Wiesenfeld sandpile model. The threshold height of a node i is set to be k 1 Z i with 0pZo1: We obtain the exponents for the avalanche size and the duration distributions analytically as a function of g and Z by using the branching process approach. The analytic solutio...
متن کاملUnderstanding and preventing cascading breakdown in complex clustered networks.
Complex clustered networks are ubiquitous in natural and technological systems. Understanding the physics of the security of such networks in response to attacks is of significant value. We develop a model, based on physical analysis and numerical computations, for the key ingredients of load dynamics in typical clustered networks. With this understanding, an effective strategy is proposed for ...
متن کاملCascading failure spreading on weighted heterogeneous networks
We study the onset and spreading of cascading failure on weighted heterogeneous networks by adopting a local weighted flow redistribution rule, where the weight and tolerance of a node is correlated with its link degree k as k and Ck, respectively. The weight parameter θ and tolerance parameter C are positive: θ > 0 and C > 1.0. Assume that a failed node leads only to a redistribution of flow p...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Progress of Theoretical Physics
سال: 2007
ISSN: 0033-068X,1347-4081
DOI: 10.1143/ptp.118.15