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dc.contributor.authorCareglio, Davide
dc.contributor.authorKlinkowski, Miroslaw
dc.contributor.authorSolé Pareta, Josep
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors
dc.date.accessioned2011-07-21T11:17:28Z
dc.date.available2011-07-21T11:17:28Z
dc.date.created2008-09-30
dc.date.issued2008-09-30
dc.identifier.citationCareglio, D.; Klinkowski, M.; Solé-Pareta, J. Preemption window mechanism for efficient QoS support in E-OBS network architecture. A: International Conference on Broadband Communications, Networks, and Systems. "5th International Conference on Broadband Communications, Networks, and Systems". Londres: ICST, 2008, p. 132-139.
dc.identifier.isbn978-1-4244-2392-7
dc.identifier.urihttp://hdl.handle.net/2117/13027
dc.description.abstractThis paper focuses on the problem of quality of service (QoS) provisioning in optical burst switching (OBS) networks. OBS is a promising photonic network technology aiming at efficient transport of IP traffic by means of statistical multiplexing. The lack of optical memories, however, makes this operation quite complicated. Problems such as unfairness in access to the shared transmission resources, facility in adopting alternative and backup routing, scheduling complexity and so on arise in the conventional OBS architecture. In [1] we proposed the offset-time emulated OBS (E-OBS) architecture, which overcomes all these drawbacks by means of distributed provisioning of the offset time in core nodes. Nonetheless it is still difficult to guarantee a certain level of service quality. Burst preemption mechanism, which, alongside with offset-time differentiation, was proven to be the most effective technique for QoS provisioning in OBS networks. The general drawback of any burst preemptionbased mechanism is that, in case of successful preemption, either the resources reserved for the preempted bursts on outgoing path are wasted or an additional signaling procedure should be carried out in order to release them. In order to avoid wasted resources reservation, in [2] we proposed the Preemption Window (PW) mechanism which enhances the E-OBS for efficient QoS support. In this paper we evaluate exhaustively the performance of the resulting architecture showing all its advantageous with respect to other solutions.
dc.format.extent8 p.
dc.language.isoeng
dc.publisherICST
dc.subjectÀrees temàtiques de la UPC::Informàtica::Arquitectura de computadors
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica
dc.subject.lcshOptical communications
dc.subject.otherIP networks
dc.subject.otherOptical burst switching
dc.subject.otherOptical fibre networks
dc.subject.otherQuality of service
dc.subject.otherScheduling
dc.subject.otherStatistical multiplexing
dc.subject.otherTelecommunication network routing
dc.subject.otherTelecommunication traffic
dc.titlePreemption window mechanism for efficient QoS support in E-OBS network architecture
dc.typeConference report
dc.subject.lemacComunicacions òptiques
dc.contributor.groupUniversitat Politècnica de Catalunya. CBA - Sistemes de Comunicacions i Arquitectures de Banda Ampla
dc.identifier.doi10.1109/BROADNETS.2008.4769057
dc.rights.accessOpen Access
local.identifier.drac2421611
dc.description.versionPostprint (published version)
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/FP7/216863/EU/Building the Future Optical Network in Europe: The e-Photon%2FONe Network/BONE
local.citation.authorCareglio, D.; Klinkowski, M.; Solé-Pareta, J.
local.citation.contributorInternational Conference on Broadband Communications, Networks, and Systems
local.citation.pubplaceLondres
local.citation.publicationName5th International Conference on Broadband Communications, Networks, and Systems
local.citation.startingPage132
local.citation.endingPage139


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