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Routing dependable connections in WDM optical networks

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cris.author.scopus-author-id7006182165
cris.author.scopus-author-id7102087090
cris.virtual.department#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtual.departmentIndian Institute of Technology, Madras
cris.virtualsource.department#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtualsource.department6ca15afb-380e-4603-a059-8e4ba593e0bf
dc.contributor.authorMohan, G.
dc.contributor.authorC Siva Ram Murthy
dc.date.accessioned2023-09-20T05:40:57Z
dc.date.available2023-09-20T05:40:57Z
dc.date.issued15-08-2001
dc.description.abstractOptical networks employing wavelength division multiplexing (WDM) and wavelength routing are a potential candidate for future wide-area networks. As these networks are prone to component failures and they carry a large volume of traffic, providing fault tolerance capability to them is an important issue. This paper considers the problem of establishing dependable connections (D-connections) in wavelength-routed wavelength-division multiplexed networks with dynamic traffic demands. We call a connection with fault-tolerant requirements as a D-connection. We recommend using the pro-active approach wherein a D-connection is identified with the establishment of the primary lightpath and a backup lightpath at the time of honoring the request. Upon occurrence of a fault, a failed connection finds its backup path readily available. We develop algorithms to select routes and wavelengths to establish D-connections with improved blocking performance. These algorithms differ in their performance and computational complexity. The algorithms use backup multiplexing technique to efficiently utilize the wavelength channels. To improve fairness between dependable and non-dependable connections, we propose a method called backup threshold. We conduct extensive simulation experiments on different networks to verify the effectiveness of the proposed algorithms. © 2001 Elsevier Science B.V. All rights reserved.
dc.identifier.doi10.1016/S0140-3664(00)00367-4
dc.identifier.issn1403664
dc.identifier.scopus2-s2.0-0035882242
dc.identifier.urihttps://apicris.irins.org/handle/IITM2023/52477
dc.relation.ispartofseriesComputer Communications
dc.sourceComputer Communications
dc.subjectBackup multiplexing
dc.subjectDependable connection
dc.subjectLightpath restoration
dc.subjectPrimary and backup lightpath
dc.subjectWavelength division multiplexing
dc.titleRouting dependable connections in WDM optical networks
dc.typeJournal
dspace.entity.typePublication
oaire.citation.endPage1241
oaire.citation.issue13
oaire.citation.startPage1225
oaire.citation.volume24
oairecerif.author.affiliation#PLACEHOLDER_PARENT_METADATA_VALUE#
oairecerif.author.affiliationIndian Institute of Technology, Madras
person.affiliation.cityChennai
person.affiliation.citySingapore City
person.affiliation.id60025757
person.affiliation.id60017161
person.affiliation.nameIndian Institute of Technology Madras
person.affiliation.nameNational University of Singapore
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