Spectral Reallocation in Lightpaths Encompassing the Most Fragmented Link of Elastic Optical Networks

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dc.contributor.authorFavero, Ricardo Vicente
dc.contributor.authorBonani, Luiz Henrique
dc.contributor.authorFrancisco Abbade, Marcelo Luis [UNESP]
dc.contributor.authorIEEE
dc.contributor.institutionPontificia Univ Catolica Campinas
dc.contributor.institutionUNIFEG
dc.contributor.institutionUniversidade Federal do ABC (UFABC)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-11-26T15:37:33Z
dc.date.available2018-11-26T15:37:33Z
dc.date.issued2016-01-01
dc.description.abstractDynamic allocation and release of lightpaths cause spectral fragmentation and degrade the bandwidth occupation in elastic optical networks (EON). Spectral reallocation and defragmentation strategies are key issues to minimize this problem and should be carefully chosen to simplify network management and to avoid excessive use of hardware. In this paper, we investigate the application of three different routing and spectral assignment (RSA) algorithms to reallocate EON traffic in situations where new requested connections may be potentially blocked. A fragmentation index is computed for all EON links and only those lightpaths that encompass the most fragmented link are prone to reallocation. Computer simulations suggest the choice of an appropriate RSA may reduce the relative blocking probability by similar to 18% for a traffic load of 70 E. We also investigate the number of reallocations that actually lead to spectral defragmentation.en
dc.description.affiliationPontificia Univ Catolica Campinas, Campinas, SP, Brazil
dc.description.affiliationUNIFEG, Guaxupe, MG, Brazil
dc.description.affiliationUniv Fed ABC, CECS, Santo Andre, SP, Brazil
dc.description.affiliationUniv Estadual Paulista, UNESP, Sao Joao Da Boa Vista, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, UNESP, Sao Joao Da Boa Vista, SP, Brazil
dc.format.extent4
dc.identifier.citation2016 18th International Conference On Transparent Optical Networks (icton). New York: Ieee, 4 p., 2016.
dc.identifier.issn2162-7339
dc.identifier.urihttp://hdl.handle.net/11449/159234
dc.identifier.wosWOS:000389537400401
dc.language.isoeng
dc.publisherIeee
dc.relation.ispartof2016 18th International Conference On Transparent Optical Networks (icton)
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.titleSpectral Reallocation in Lightpaths Encompassing the Most Fragmented Link of Elastic Optical Networksen
dc.typeTrabalho apresentado em evento
dcterms.licensehttp://www.ieee.org/publications_standards/publications/rights/rights_policies.html
dcterms.rightsHolderIeee

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