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Proceedings Paper

Shared-path protection algorithm with differentiated reliability in meshed WDM networks
Author(s): Hongfang Yu; Haibo Wen; Sheng Wang; Lemin Li; Bing Xiang
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Paper Abstract

Optical fiber links, due to sharing some common physical resources, e.g., fiber cable, conduit and Right of Way, have certain failure-dependent. The term "Shared Risk Link Groups (SRLG)" is introduced to describe the relationship between links with shared risk; SRLG diversity has become the important constraint of protection design problem. This paper addresses SRLG-constraint-based shared-path protection design problem with differentiated reliability. Via SRLG conditional failure probability concept, we propose an efficient PSD-SPP (Partial SRLG-disjoint Shared-Path Protection) algorithm to solve the protection design problem with differentiated reliability under the consideration of links failure-dependence. Simulation result shows that this algorithm not only efficiently satisfies the user-specific requirement, but also effectively decreases the network-blocking ratio.

Paper Details

Date Published: 15 April 2004
PDF: 6 pages
Proc. SPIE 5282, Network Architectures, Management, and Applications, (15 April 2004); doi: 10.1117/12.518441
Show Author Affiliations
Hongfang Yu, Univ. of Electronic Science and Technology China (China)
Haibo Wen, Univ. of Electronic Science and Technology China (China)
Sheng Wang, Univ. of Electronic Science and Technology China (China)
Lemin Li, Univ. of Electronic Science and Technology China (China)
Bing Xiang, Univ. of Electronic Science and Technology China (China)


Published in SPIE Proceedings Vol. 5282:
Network Architectures, Management, and Applications
S. J. Ben Yoo; Kwok-wai Cheung; Yun-Chur Chung; Guangcheng Li, Editor(s)

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