Title
A unified model for synchronous and asynchronous FDL buffers allowing closed-form solution A unified model for synchronous and asynchronous FDL buffers allowing closed-form solution
Author
Faculty/Department
Faculty of Sciences. Physics
Faculty of Sciences. Mathematics and Computer Science
Publication type
article
Publication
Amsterdam ,
Subject
Computer. Automation
Source (journal)
Performance evaluation. - Amsterdam
Volume/pages
66(2009) :7 , p. 343-355
ISSN
0166-5316
ISI
000266061200001
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Novel switching approaches like Optical Burst/Packet Switching have buffering implemented with Fiber Delay Lines (FDLs). Previous performance models of the resulting buffer only allowed for solution by numerical means, and only for one time setting: continuous, or discrete. With a Markov chain approach, we constructed a generic framework that encompasses both time settings. The output includes closed-form expressions of loss probabilities and waiting times for a rather realistic setting. This allows for exact performance comparison of the classic M/D/1 buffer and FDL M/D/1 buffer, revealing that waiting times are (more than) doubled in the case of FDL buffering.
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