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Títol: Keeping the packet sequence in optical packet-switched networks
Autor: Callegati, Franco
Careglio, Davide
Cerroni, Walter
Muretto, Giovanni
Raffaelli, Carla
Solé Pareta, Josep
Zaffoni, Paolo
Altres autors/autores: Universitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors; Universitat Politècnica de Catalunya. CBA - Sistemes de Comunicacions de Banda Ampla
Matèries: Àrees temàtiques de la UPC::Enginyeria electrònica i telecomunicacions::Telemàtica i xarxes d'ordinadors::Trànsit de dades
Packet switching (Data transmission)
Optical packet switching
Asynchronous and variable-length packets
Connection-oriented operation
Packet sequence
Commutació de paquets (Transmissió de dades)
Tipus de document: Article
Descripció: 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.
Postprint (published version)
Altres identificadors i accés: Callegati, F. [et al.]. Keeping the packet sequence in optical packet-switched networks. "Optical switching and networking", 07 Novembre 2005, vol. 2, núm. 3, p. 137-147.
Disponible al dipòsit:E-prints UPC

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