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Title:
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Performance evaluation of a hybrid OBS/OCS network with QoS differentiation based on packet loss/delay requirements
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Author:
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Perelló Muntan, Jordi; Guinea, Nuria de; Spadaro, Salvatore; Junyent Giralt, Gabriel; Comellas Colomé, Jaume
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors; Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. CBA - Sistemes de Comunicacions i Arquitectures de Banda Ampla; Universitat Politècnica de Catalunya. GCO - Grup de Comunicacions Òptiques |
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Abstract:
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This paper introduces and evaluates a hybrid OBS/OCS switch for Quality of Service (QoS) differentiation in next-generation all-optical transport networks. Depending on their QoS requirements, incoming IP packets are collected in delay-sensitive or loss-sensitive assembly queues. Once assembled, those departing delay or losssensitive bursts are sent to the destination over a parallel all-optical hybrid network, where a set of switch ports
and wavelengths are dedicated to delay-sensitive OBS-like transmission based on Just Enough Time (JET), whereas the remainder are dedicated to loss-sensitive OCS-like transmission. The obtained results validate the differentiated transport services in the deployed reference network scenario. Moreover, they show that circuit
set-up retries are mandatory in OCS to carry loss-sensitive traffic efficiently. |
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Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica
-Telecommunication -- Traffic -- Management
-Optical communications -- Quality control
-Circuit switching
-Optical burst switching
-Optical fibre networks
-Quality of service
-Telecommunication traffic
-Telecomunicació -- Tràfic -- Gestió
-Xarxes de telecomunicació òptiques -- Control de qualitat |
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Rights:
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Document type:
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Article - Published version
Conference Object |
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Share:
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