Scalable shared protection approach for mesh WDM-routed networks

Florence Touvet, D.A. Harle

Research output: Contribution to conferencePaper

Abstract

The paper proposes an approach for calculating the protection pool size on each link in a mesh WDMrouted
network. The protection pool evaluation is part of a shared protection scheme applied to a failure
dependent scenario and based on aggregated information dissemination. Two models based on a probabilistic
approach are proposed to provide a scheme that is scalable as the number of optical cross-connects (OXC),
fibres and wavelength multiplexing in a core network increases. Precisely, two models based on a binomial
and a beta-binomial distribution are presented. The evaluation of the models by simulation shows that both
models are attractive propositions to offer protected ¸-services that do not require an absolute protection
guarantee offered by (1:1) schemes or shared protection schemes requiring full network state information, or
using partial information but with less efficient use of the fibre utilisation.
LanguageEnglish
Number of pages9
Publication statusPublished - 2004

Fingerprint

Wavelength division multiplexing
Information dissemination
Fibers
Multiplexing
Wavelength

Keywords

  • mesh
  • shared protection
  • protection pool size,
  • partial information
  • WDM networks

Cite this

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title = "Scalable shared protection approach for mesh WDM-routed networks",
abstract = "The paper proposes an approach for calculating the protection pool size on each link in a mesh WDMrouted network. The protection pool evaluation is part of a shared protection scheme applied to a failure dependent scenario and based on aggregated information dissemination. Two models based on a probabilistic approach are proposed to provide a scheme that is scalable as the number of optical cross-connects (OXC), fibres and wavelength multiplexing in a core network increases. Precisely, two models based on a binomial and a beta-binomial distribution are presented. The evaluation of the models by simulation shows that both models are attractive propositions to offer protected ¸-services that do not require an absolute protection guarantee offered by (1:1) schemes or shared protection schemes requiring full network state information, or using partial information but with less efficient use of the fibre utilisation.",
keywords = "mesh , shared protection, protection pool size,, partial information, WDM networks",
author = "Florence Touvet and D.A. Harle",
year = "2004",
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Scalable shared protection approach for mesh WDM-routed networks. / Touvet, Florence ; Harle, D.A.

2004.

Research output: Contribution to conferencePaper

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AU - Harle, D.A.

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AB - The paper proposes an approach for calculating the protection pool size on each link in a mesh WDMrouted network. The protection pool evaluation is part of a shared protection scheme applied to a failure dependent scenario and based on aggregated information dissemination. Two models based on a probabilistic approach are proposed to provide a scheme that is scalable as the number of optical cross-connects (OXC), fibres and wavelength multiplexing in a core network increases. Precisely, two models based on a binomial and a beta-binomial distribution are presented. The evaluation of the models by simulation shows that both models are attractive propositions to offer protected ¸-services that do not require an absolute protection guarantee offered by (1:1) schemes or shared protection schemes requiring full network state information, or using partial information but with less efficient use of the fibre utilisation.

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KW - shared protection

KW - protection pool size,

KW - partial information

KW - WDM networks

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