Reliability of time-constrained multi-state network susceptible to correlated component faults

Yi-Kuei Lin, Lance Fiondella and Ping-Chen Chang ()
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Yi-Kuei Lin: National Chiao Tung University
Lance Fiondella: University of Massachusetts
Ping-Chen Chang: National Quemoy University

Annals of Operations Research, 2022, vol. 311, issue 1, No 17, 239-254

Abstract: Abstract Correlation can seriously degrade reliability and capacity due to the simultaneous failure of multiple components, which lowers the probability that a system can execute its required functions with acceptable levels of confidence. The high cost of fault in time-critical systems necessitates methods to explicitly consider the influence of correlation on reliability. This paper constructs a network-structured model, namely time-constrained multi-state network (TCMSN), to investigate the capacity of a computer network. In the TCMSN, the physical lines comprising the edges of the computer network experience correlated faults. Our approach quantifies the probability that d units of data can be sent from source to sink in no more than T units of time. This probability that the computer network delivers a specified level of data before the deadline is referred to as the system reliability. Experimental results indicate that the negative influence of correlation on reliability could be significant, especially when the data amount is close to network bandwidth and the time constraint is tight. The modeling approach will subsequently promote design and optimization studies to mitigate the vulnerability of networks to correlated faults.

Keywords: Correlated fault; Time-constrained multi-state network (TCMSN); System reliability (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1007/s10479-019-03428-3

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