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dc.contributor.authorCavdar, Cicek
dc.contributor.authorRuiz Ramírez, Marc
dc.contributor.authorMonti, Paolo
dc.contributor.authorVelasco Esteban, Luis Domingo
dc.contributor.authorWosinska, Lena
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors
dc.identifier.citationCavdar, C. [et al.]. Design of green optical networks with signal quality guarantee. A: IEEE International Conference on Communications. "IEEE International Conference on Communications (ICC 2012): Ottawa, Ontario, Canada, 10-15 June 2012". Otawa: Institute of Electrical and Electronics Engineers (IEEE), 2012, p. 3025-3030.
dc.description.abstractEnergy consumption of communication networks is growing very fast due to the rapidly increasing traffic demand. Consequently, design of green communication networks gained a lot of attention. In this paper we focus on optical Wavelength Division Multiplexing (WDM) networks, able to support this growing traffic demand. Several energy-aware routing and wavelength assignment (EA-RWA) techniques have been proposed for WDM networks in order to minimize their operational cost. These techniques aim at minimizing the number of active links by packing the traffic as much as possible, thus avoiding the use of lightly loaded links. As a result, EA-RWA techniques may lead to longer routes and to a high utilization on some specific links. This has a detrimental effect on the signal quality of the optical connections, i.e., lightpaths. In this study we quantify the impact of power consumption minimization on the optical signal quality. and address this problem by proposing a combined impairment and energy-aware RWA (IEA-RWA) approach. Towards this goal we developed a complete mathematical model that incorporates both linear and non-linear physical impairments together with an energy efficiency objective. The IEA-RWA problem is formulized as a Mixed Integer Linear Programming (MILP) model where both energy efficiency and signal quality considerations are jointly optimized. By comparing the proposed IEA-RWA approach with existing RWA (IA-RWA and EA-RWA) schemes, we demonstrate that our solution allows for a reduction of energy consumption close to the one obtained by EA-RWA approaches, while still guaranteeing a sufficient level of the optical signal quality.
dc.format.extent6 p.
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica
dc.subject.lcshRouting (Computer network management)
dc.subject.lcshTelecommunication -- Traffic -- Management
dc.subject.lcshWavelength division multiplexing
dc.subject.otherPhysical impairments
dc.subject.otherEnergy-efficient networks
dc.subject.otherOptical WDM networks
dc.titleDesign of green optical networks with signal quality guarantee
dc.typeConference report
dc.subject.lemacEncaminadors (Xarxes d'ordinadors)
dc.subject.lemacTelecomunicació -- Tràfic -- Gestió
dc.subject.lemacMultiplexatge per divisió de freqüència
dc.contributor.groupUniversitat Politècnica de Catalunya. GCO - Grup de Comunicacions Òptiques
dc.description.peerreviewedPeer Reviewed
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (published version)
upcommons.citation.authorCavdar, C.; Ruiz, M.; Monti, P.; Velasco, L.; Wosinska, L.
upcommons.citation.contributorIEEE International Conference on Communications
upcommons.citation.publicationNameIEEE International Conference on Communications (ICC 2012): Ottawa, Ontario, Canada, 10-15 June 2012

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