Title
A Tractable Stochastic Model of Correlated Link Failures Caused by Disasters.
Abstract
In order to evaluate the expected availability of a service, a network administrator should consider all possible failure scenarios under the specific service availability model stipulated in the corresponding service-level agreement. Given the increase in natural disasters and malicious attacks with geographically extensive impact, considering only independent single link failures is often insufficient. In this paper, we build a stochastic model of geographically correlated link failures caused by disasters, in order to estimate the hazards a network may be prone to, and to understand the complex correlation between possible link failures. With such a model, one can quickly extract information, such as the probability of an arbitrary set of links to fail simultaneously, the probability of two nodes to be disconnected, the probability of a path to survive a failure, etc. Furthermore, we introduce a pre-computation process, which enables us to succinctly represent the joint probability distribution of link failures. In particular, we generate, in polynomial time, a quasilinear-sized data structure, with which the joint failure probability of any set of links can be computed efficiently.
Year
Venue
Field
2018
IEEE INFOCOM
Data structure,Joint probability distribution,Computer science,Stochastic process,Network administrator,Stochastic modelling,Time complexity,Distributed computing
DocType
ISSN
Citations 
Conference
0743-166X
0
PageRank 
References 
Authors
0.34
18
7
Name
Order
Citations
PageRank
János Tapolcai136441.42
Balazs Vass282.83
Zalán Heszberger3639.15
József Bíró48918.01
David Hay518512.25
Fernando Kuipers614310.78
Lajos Rónyai739752.05