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Proceedings Paper

Segmentation overhead in optical burst switching
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Paper Abstract

In Optical Burst Switching (OBS), data packets at the edge of the network are aggregated into larger units identified as Data Bursts (DBs). When switching is performed synchronously in OBS core nodes (slotted switching), each DB has to be segmented at the switch input into fixed size units. Each unit is switched to a designated output in an "optical" time slot (a parameter of the "optical" switch). The purpose of our study is to give recommendations concerning the optimum size of these optical slots so as to minimize the overhead arising from the segmentation process. In order to estimate the total overhead due to this process we take into account the statistical distribution of the burst size, the possible padding of the last burst segment (to completely fill an optical slot) and the overhead due to the optical-slot preamble.

Paper Details

Date Published: 3 July 2002
PDF: 8 pages
Proc. SPIE 4874, OptiComm 2002: Optical Networking and Communications, (3 July 2002); doi: 10.1117/12.475314
Show Author Affiliations
Lev B. Sofman, Alcatel USA, Inc. (United States)
Tarek S. El-Bawab, Alcatel USA, Inc. (United States)
Koenraad Laevens, Alcatel Bell N.V. (Belgium)

Published in SPIE Proceedings Vol. 4874:
OptiComm 2002: Optical Networking and Communications
Nasir Ghani; Krishna M. Sivalingam, Editor(s)

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