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Keeping the packet sequence in optical packet-switched networks

descriptionPublicationkeyboard_double_arrow_right Article 01 Nov 2005 Spain, Italy Publisher:Elsevier BVJournal:Optical Switching and Networking, volume 2, pages 137-147 (issn: 1573-4277,

Authors: CALLEGATI, FRANCO; D. Careglio; CERRONI, WALTER; MURETTO, GIOVANNI; RAFFAELLI, CARLA; J. Solé Pareta; ZAFFONI, PAOLO;

doi: 10.1016/j.osn.2005.09.001

handle: 2117/10313 , 11585/21619

Keeping the packet sequence in optical packet-switched networks

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Abstract

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.

Countries

Spain, Italy

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Keywords

Packet switching (Data transmission), Optical packet switching, Packet sequence, Commutació de paquets (Transmissió de dades), DWDM, Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telemàtica i xarxes d'ordinadors::Trànsit de dades, :Enginyeria de la telecomunicació::Telemàtica i xarxes d'ordinadors::Trànsit de dades [Àrees temàtiques de la UPC], Asynchronous and variable-length packets, Connection-oriented operation, OPTICAL PACKET SWITCHING; ASYNCHRONOUS AND VARIABLE-LENGTH PACKETS; CONNECTION-ORIENTED OPERATION; DWDM; PACKET SEQUENCE

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