Regenerator placement and traffic engineering with restoration in GMPLS networks

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dc.citation.epage149en_US
dc.citation.issueNumber2en_US
dc.citation.spage139en_US
dc.citation.volumeNumber6en_US
dc.contributor.authorYetginer, E.en_US
dc.contributor.authorKarasan, E.en_US
dc.date.accessioned2016-02-08T10:29:27Z
dc.date.available2016-02-08T10:29:27Z
dc.date.issued2003en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.description.abstractIn this paper, we study regenerator placement and traffic engineering of restorable paths in generalized multiprotocol label switching (GMPLS) networks. Regenerators are necessary in optical networks in order to cope with transmission impairments. We study a network architecture where regenerators are placed only at selected nodes for decreasing cost of regeneration. We propose two heuristic algorithms for optimum placement of these regenerators. Performances of these algorithms in terms of required number of regenerators and computational complexity are evaluated. In this network architecture with sparse regeneration, off-line computation of working and restoration paths is studied for traffic engineering with path rerouting as the restoration scheme. We study two approaches for selecting working and restoration paths from a set of candidate paths and formulate each method as an integer linear programming (ILP) problem. A traffic uncertainty model is developed in order to compare these methods based on their robustness with respect to changing traffic patterns. Traffic engineering methods are compared based on number of additional demands resulting from traffic uncertainties that can be carried over the network. Proposed heuristic regenerator placement algorithms are also evaluated from a traffic engineering point of view.en_US
dc.identifier.doi10.1023/A:1024731113866en_US
dc.identifier.issn1387-974X
dc.identifier.urihttp://hdl.handle.net/11693/24440
dc.language.isoEnglishen_US
dc.publisherSpringeren_US
dc.relation.isversionofhttp://dx.doi.org/10.1023/A:1024731113866en_US
dc.source.titlePhotonic Network Communicationsen_US
dc.subjectGMPLSen_US
dc.subjectRegenerator placementen_US
dc.subjectRestorationen_US
dc.subjectTraffic engineeringen_US
dc.subjectAlgorithmsen_US
dc.subjectComputational complexityen_US
dc.subjectConstraint theoryen_US
dc.subjectHeuristic methodsen_US
dc.subjectInteger programmingen_US
dc.subjectInteroperabilityen_US
dc.subjectLinear programmingen_US
dc.subjectMultilayersen_US
dc.subjectNetwork protocolsen_US
dc.subjectPhotonsen_US
dc.subjectRegeneratorsen_US
dc.subjectSwitchingen_US
dc.subjectTelecommunication trafficen_US
dc.subjectTopologyen_US
dc.subjectRegenerator placementen_US
dc.subjectTraffic engineeringen_US
dc.subjectTelecommunication networksen_US
dc.titleRegenerator placement and traffic engineering with restoration in GMPLS networksen_US
dc.typeArticleen_US

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