Title:
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Keeping the packet sequence in optical packet-switched networks
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Author:
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Callegati, Franco; Careglio, Davide; Cerroni, Walter; Muretto, Giovanni; Raffaelli, Carla; Solé Pareta, Josep; Zaffoni, Paolo
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors; Universitat Politècnica de Catalunya. CBA - Sistemes de Comunicacions i Arquitectures de Banda Ampla |
Abstract:
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This paper deals with optical packet switches with limited buffer capabilities, subject to asynchronous, variable-length packets and connection-oriented operation. The focus is put on buffer scheduling policies and queuing performance evaluation. In particular a combined use of the wavelength and time domain is exploited in order to obtain contention resolution algorithms that guarantee the sequence preservation of packets belonging to the same connection. Four simple algorithms for strict and loose packet sequence preservation are proposed. Their performance is studied and compared with previously proposed algorithms. Simulation results
suggest that by accepting some additional processing effort it is possible to guarantee very low packet loss probabilities while avoiding the out-of-sequence delivery. |
Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telemàtica i xarxes d'ordinadors::Trànsit de dades -Packet switching (Data transmission) -Optical packet switching -Asynchronous and variable-length packets -Connection-oriented operation -DWDM -Packet sequence -Commutació de paquets (Transmissió de dades) |
Rights:
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Document type:
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Article - Published version Article |
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