Title
Modeling Stochastic Correlated Failures and their Effects on Network Reliability.
Abstract
The physical infrastructure of communication networks is vulnerable to spatially correlated failures arising from various physical stresses such as natural disasters (earthquakes and hurricanes) as well as malicious coordinated attacks using weapons of mass destruction. Some disaster events such as earthquakes and terrorist attacks may occur in more than one location in a short period of time. Hence multiple sets of correlated link failures may occur if more events occurred before the previous set of failed links were repaired. Here, the statistical properties of induced-failure patterns depend upon the spatial interaction among stress centers (e. g., interaction among earthquake or attack locations). This paper presents a stochastic model, based on spatial point processes, for representing stress centers on the geographical plane in order to facilitate the modeling of spatially inhomogeneous and correlated link failures in communication networks. This model is then used to further generate scenarios with inhibition or clustering between stress centers, which enables detailed assessment of vulnerabilities of the network to the level of inhomogeneity and spatial correlation in the stress-event centers. Detailed simulation results are presented to compare network reliability for various scenarios of link failures and to find geographically vulnerable areas of a network as well as worst-case scenarios of stress-events. Overall, this effort will provide some critical knowledge and simulation capabilities for other focus areas of research in network reliability and survivability.
Year
DOI
Venue
2011
10.1109/ICCCN.2011.6005789
ICCCN
Keywords
Field
DocType
statistical analysis,stochastic processes,telecommunication network reliability,communication network,disaster event,earthquake,geographical plane,hurricane,malicious coordinated attack,natural disaster,network reliability,physical infrastructure,physical stresses,spatial point process,statistical property,stochastic correlated failure,stress-event center,terrorist attack
Survivability,Spatial correlation,Telecommunications network,Computer science,Point process,Stochastic modelling,Probabilistic logic,Reliability (computer networking),Cluster analysis,Distributed computing
Conference
ISSN
Citations 
PageRank 
1095-2055
15
0.89
References 
Authors
8
5
Name
Order
Citations
PageRank
Mahshid Rahnamay-Naeini1276.31
Jorge E. Pezoa211915.76
Ghady Azar3150.89
N. Ghani464566.92
Majeed M. Hayat521326.36