Novel shared-path protection algorithm and reliability analysis model based on Bayesian network for multilink failures

Jun Xu; Huiyou Chang; Chang Xu; Yang Yi

doi:10.1117/1.3275451

1 December 2009 Novel shared-path protection algorithm and reliability analysis model based on Bayesian network for multilink failures

Jun Xu, Huiyou Chang, Chang Xu, Yang Yi

Author Affiliations +

Optical Engineering, Vol. 48, Issue 12, 125002 (December 2009). https://doi.org/10.1117/1.3275451

Abstract

For the multilink failure problem of wavelength division multiplexing (WDM) optical networks, we establish a reliability analysis model of shared-path protection strategy based on the Bayesian network and correlated link failure probability and analyze the reliability of light paths assigned by two shared-path protection algorithms. The new reliability model makes the reliability calculation of path subject to multilink failures possible, greatly simplifying the calculation of probabilistic reasoning. In addition, based on the new Bayesian network reliability analysis model, a novel differentiated shared-path protection (DSPP) algorithm is proposed to protect against multilink failures in WDM optical networks. Simulation experiments show that, compared with the two previous shared-path protection algorithms, the DSPP algorithm not only can satisfy the specific requirements of users but also has better survivability for multilink failures.

©(2009) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Jun Xu, Huiyou Chang, Chang Xu, and Yang Yi "Novel shared-path protection algorithm and reliability analysis model based on Bayesian network for multilink failures," Optical Engineering 48(12), 125002 (1 December 2009). https://doi.org/10.1117/1.3275451

Published: 1 December 2009

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KEYWORDS

Reliability

Light

Wavelength division multiplexing

Nanoimprint lithography

Network security

Optical networks

Optical engineering

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