Shared-Path Protection Algorithm with Differentiated Reliability in Meshed WDM Networks

Yu GongFang; Wen HaiBo; Wang Sheng; Li LeMin

Volume 27 Issue 8

Aug. 2005

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Article Navigation > Journal of Electronics & Information Technology > 2005 > 27(8): 1295-1298

Yu GongFang, Wen HaiBo, Wang Sheng, Li LeMin. Shared-Path Protection Algorithm with Differentiated Reliability in Meshed WDM Networks[J]. Journal of Electronics & Information Technology, 2005, 27(8): 1295-1298.

Citation:

Yu GongFang, Wen HaiBo, Wang Sheng, Li LeMin. Shared-Path Protection Algorithm with Differentiated Reliability in Meshed WDM Networks[J]. Journal of Electronics & Information Technology, 2005, 27(8): 1295-1298.

Citation:

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Shared-Path Protection Algorithm with Differentiated Reliability in Meshed WDM Networks

Received Date: 2004-03-03
Rev Recd Date: 2004-06-28
Publish Date: 2005-08-19

Abstract

Abstract

Fiber links, because of sharing some common physical resources （such as fiber cable, conduit, right of way, etc.）, 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, an efficient PSD-SPP （Partial SRLG-Disjoint Shared-Path Protection） algorithm is proposed to solve the protection design problem with differentiated reliability when considering links failure-dependence. Simulation result shows this algorithm not only efficiently satisfies the user-specific requirement, but also effectively decreases the network-blocking ratio.

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References(1)

References

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