Bounds of the overflow priority classification for blocking probability approximation in OBS networks

Li, S, Wang, M, Wong, E, Abramov, V and Zukerman, M 2013, 'Bounds of the overflow priority classification for blocking probability approximation in OBS networks', Journal of Optical Communications and Networking, vol. 5, no. 4, 6496233, pp. 378-393.


Document type: Journal Article
Collection: Journal Articles

Title Bounds of the overflow priority classification for blocking probability approximation in OBS networks
Author(s) Li, S
Wang, M
Wong, E
Abramov, V
Zukerman, M
Year 2013
Journal name Journal of Optical Communications and Networking
Volume number 5
Issue number 4
Article Number 6496233
Start page 378
End page 393
Total pages 16
Publisher IEEE
Abstract It has been demonstrated that the overflow priority classification approximation (OPCA) is an accurate method for blocking probability evaluation for various networks and systems, including optical burst switched networks with deflection routing. OPCA is a hierarchical algorithm that requires fixed-point iterations in each layer of its hierarchy. This may imply a long running time. We prove here that the OPCA iterations alternately produce upper and lower bounds that consistently become closer to each other as more fixed-point iterations in each layer are used, and we demonstrate numerically that only a small number of iterations per layer are required for the bounds to be sufficiently close to each other. This behavior is demonstrated for various system parameters including offered load, number of channels per trunk, and maximum allowable number of deflections. © 2009-2012 OSA.
Subject Optical Networks and Systems
Keyword(s) Deflection routing
Loss networks
Lower and upper bounds
Nonhierarchical networks
Optical burst switching (OBS)
Optical packet switching (OPS)
Overflow priority classification approximation
Performance analysis
DOI - identifier 10.1364/JOCN.5.000378
Copyright notice © 2013 Optical Society of America
ISSN 1943-0620
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