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Robustness of complex networks to cascading failures induced by Poisson fluctuating loads
Li Zhenpeng1; Tang Xijin2,3
2019-12-15
Source PublicationPHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
ISSN0378-4371
Volume536Pages:10
AbstractConsidering the fact that overload failures in real-world functional networks are usually caused by extreme values of temporally fluctuating loads that exceed the allowable range, we study the robustness of complex networks against cascading overload failures in such situation. In our model, at each cascading step the fluctuating load on a network is described by the total number of walkers, which is a random number that subjects to Poisson distribution. And a node fails when its overload probability is beyond its risk tolerance. Relative size of the giant component as a function of the cascade step is used to assess the robustness of networks against cascading overload. Comparing to the cases of stationary overload probability in Kishore et al., (2011, 2012) and previous study on temporally fluctuating (the total load reduced in accordance with the reduction of the network size during a cascade process) overload probability in Mizutaka and Yakubo, (2015), we find that the total fluctuating loads that subject to random distribution at each cascade process induce remarkable difference for extreme events probability distribution. The study shows that the change in the property of the load fluctuations may drastically alter the dependence degree of the overload probability and hence the robustness of networks. Furthermore, our results obtained through intensive simulations show that scale-free networks are more fragile against cascading overload failures than ER and WS networks. This conclusion is contrary to those previous prediction without considering random fluctuating loads and endogenous risk resistance ability. (C) 2019 Elsevier B.V. All rights reserved.
KeywordCascading failure Random overload fluctuations Risk tolerance Complex networks
DOI10.1016/j.physa.2019.04.084
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[71661001] ; National Natural Science Foundation of China[61473284] ; National Natural Science Foundation of China[71731002]
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
WOS IDWOS:000500034900043
PublisherELSEVIER
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Document Type期刊论文
Identifierhttp://ir.amss.ac.cn/handle/2S8OKBNM/50394
Collection中国科学院数学与系统科学研究院
Corresponding AuthorLi Zhenpeng
Affiliation1.Dali Univ, Sch Math & Comp Sci, Dali 671003, Peoples R China
2.Chinese Acad Sci, Acad Math & Syst Sci, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Li Zhenpeng,Tang Xijin. Robustness of complex networks to cascading failures induced by Poisson fluctuating loads[J]. PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS,2019,536:10.
APA Li Zhenpeng,&Tang Xijin.(2019).Robustness of complex networks to cascading failures induced by Poisson fluctuating loads.PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS,536,10.
MLA Li Zhenpeng,et al."Robustness of complex networks to cascading failures induced by Poisson fluctuating loads".PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS 536(2019):10.
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