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dc.contributor.authorPerelló Muntan, Jordi
dc.contributor.authorSpadaro, Salvatore
dc.contributor.authorComellas Colomé, Jaume
dc.contributor.authorJunyent Giralt, Gabriel
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.identifier.citationPerello, J. [et al.]. Burst contention avoidance schemes in hybrid GMPLS-enabled OBS/OCS optical networks. A: Conference on Optical Network Design and Modelling. "13th International Conference on Optical Network Design and Modelling". Braunschweig: IEEE Computer Society Publications, 2009, p. 1-6.
dc.description.abstractHybrid optical network architectures, combining benefits of optical circuit and burst switching technologies, become a natural evolution to improve overall network performance while reducing related costs. This paper concentrates on preventive contention avoidance schemes to decrease burst loss probability at the OBS layer of such hybrid network scenarios. Into operation, the proposed solution locally reacts to highly loaded downstream node situations by preventively deflecting bursts through a less loaded neighbor. Two different approaches for disseminating adjacent nodes state information are presented and extensively evaluated. In the first approach, current node state information is propagated downstream in the burst control packet, keeping pace with OBS traffic dynamics. The second approach targets at lower control overhead. In this case, averaged node state statistics are included in the Hello messages of the GMPLS Link Management Protocol (LMP) protocol, which are exchanged between neighboring nodes over the OCS control layer every 150 ms. The obtained results validate the applicability of both approaches. Moreover, they indicate that, depending on the mean burst size, either one or the other approach is favorable.
dc.format.extent6 p.
dc.publisherIEEE Computer Society Publications
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica
dc.subject.lcshTelecommunication -- Traffic
dc.subject.lcshOptical communications
dc.subject.otherMultiprotocol label switching
dc.subject.otherOptical burst switching
dc.subject.otherOptical fibre networks
dc.subject.otherTelecommunication traffic
dc.titleBurst contention avoidance schemes in hybrid GMPLS-enabled OBS/OCS optical networks
dc.typeConference report
dc.subject.lemacComunicacions òptiques
dc.contributor.groupUniversitat Politècnica de Catalunya. GCO - Grup de Comunicacions Òptiques
dc.rights.accessOpen Access
dc.description.versionPostprint (published version)
upcommons.citation.authorPerello, J.; Spadaro, S.; Comellas, J.; Junyent, G.
upcommons.citation.contributorConference on Optical Network Design and Modelling
upcommons.citation.publicationName13th International Conference on Optical Network Design and Modelling

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