Title :
A System of Systems Framework for the Reliability Assessment of Telecommunications Networks
Author :
Tsilipanos, Kosmas ; Neokosmidis, I. ; Varoutas, Dimitris
Author_Institution :
Dept. of Inf. & Telecommun., Univ. of Athens, Athens, Greece
Abstract :
In this paper, a system of systems (SoS) framework for the reliability analysis of telecommunication networks is proposed. In this framework, two hazard analysis techniques, hazard and operability analysis and fault tree analysis, are combined in a hybrid scheme. This is further enhanced using the Bayesian network model along with sensitivity analysis in order to answer complex probability queries and to estimate the impact of residual mishap risks, unknown events, or events that cannot easily be modeled. The SoS emergent behavior is further revealed using exploratory modeling. The proposed SoS framework is applied in the case of a fiber-to-the-curb VDSL telecommunication network.
Keywords :
belief networks; digital subscriber lines; fault trees; telecommunication network reliability; Bayesian network model; VDSL telecommunication network; fault tree analysis; fiber-to-the-curb; hazard analysis techniques; hybrid scheme; reliability assessment; sensitivity analysis; system of systems framework; telecommunications networks; Analytical models; Complexity theory; Hazards; Telecommunication network reliability; Bayesian networks (BN); conditional probability; fault tree analysis; fiber to the curb; hazard and operability analysis; residual mishap risk; system of systems (SoS); telecommunications;
Journal_Title :
Systems Journal, IEEE
DOI :
10.1109/JSYST.2012.2207274
