Static vs. dynamic WDM optical networks under single-cable failure conditions

A. Beghelli, A. Leiva, R. Vallejos, M. Aravena

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

In this paper, the potential benefit of migrating from static to dynamic operation of WDM optical networks is quantified (in terms of wavelength requirements) for shared mesh protection schemes under single-cable failure scenarios. The static network cost (wavelength requirements) is quantified by applying a variation of the heuristic proposed in [1]. The dynamic network cost is quantified by extending the mathematical dimensioning method proposed in [2] and modifying the simulation method proposed in [3]. Results show that fault-tolerant (FT) networks without wavelength conversion benefit from dynamic operation only at low traffic loads (< 0.4). Wavelength-convertible FT dynamic networks instead require a significantly lower total number of wavelengths than the FT static networks in a wide range of traffic loads (< 0.7). Even more, the savings achieved by the dynamic operation (with respect to the static approach) when fault-tolerance capability is provided are much more significant than when such capability is not considered. We expect these results will help network operators to better understand and design future dynamic optical networks.

Original languageEnglish
Title of host publication2009 International Conference on Optical Network Design and Modeling, ONDM 2009
StatePublished - 2009
Externally publishedYes
Event2009 International Conference on Optical Network Design and Modeling, ONDM 2009 - Braunschweig, Germany
Duration: 18 Feb 200920 Feb 2009

Publication series

Name2009 International Conference on Optical Network Design and Modeling, ONDM 2009

Conference

Conference2009 International Conference on Optical Network Design and Modeling, ONDM 2009
Country/TerritoryGermany
CityBraunschweig
Period18/02/0920/02/09

Keywords

  • Dimensioning
  • Dynamic WDM optical networks
  • Fault-tolerance
  • Optical burst switching
  • Static WDM optical networks

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