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dc.contributor.authorYetginer, E.en_US
dc.contributor.authorKarasan, E.en_US
dc.date.accessioned2016-02-08T11:57:07Z
dc.date.available2016-02-08T11:57:07Z
dc.date.issued2002en_US
dc.identifier.issn0277786X
dc.identifier.urihttp://hdl.handle.net/11693/27583
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 due to transmission impairments. We study a network architecture where there are regenerators at selected nodes and we propose two heuristic algorithms for the regenerator placement problem. Performances of these algorithms in terms of required number of regenerators and computational complexity are evaluated. In this network architecture with sparse regeneration, offline computation of working and restoration paths is studied with bandwidth reservation and 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. 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 due to traffic uncertainty that can be carried. Regenerator placement algorithms are also evaluated from a traffic engineering point of view.en_US
dc.language.isoEnglishen_US
dc.source.titleProceedings of SPIE - The International Society for Optical Engineeringen_US
dc.relation.isversionofhttp://dx.doi.org/10.1117/12.475266en_US
dc.subjectGMPLSen_US
dc.subjectRegenerator placementen_US
dc.subjectRestorationen_US
dc.subjectTraffic engineeringen_US
dc.subjectAlgorithmsen_US
dc.subjectComputational complexityen_US
dc.subjectComputer architectureen_US
dc.subjectHeuristic methodsen_US
dc.subjectInterneten_US
dc.subjectNetwork protocolsen_US
dc.subjectRegenerator placementen_US
dc.subjectTelecommunication trafficen_US
dc.titleTraffic engineering and regenerator placement in GMPLS networks with restorationen_US
dc.typeConference Paperen_US
dc.departmentDepartment of Electrical and Electronics Engineering
dc.citation.spage163en_US
dc.citation.epage174en_US
dc.citation.volumeNumber4868en_US
dc.identifier.doi10.1117/12.475266en_US


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