NDLI: Designing an Optimal Scheduler Buffer in OBS Networks

Content Provider	IEEE Xplore Digital Library
Author	Zalesky, A. Vu, H.L.
Copyright Year	1983
Abstract	In this paper, we dimension a buffer in which headers are enqueued before processing in an optical burst switching (OBS) network. For the first time, we develop and analyze a unified OBS model comprising a set of homogeneous and independent edge buffers that feed bursts to a standalone link and their headers to a scheduler. Packets arrive at each edge buffer and are assembled into bursts, after which they are transmitted on a wavelength channel if their corresponding headers are successfully processed. In a case study, we demonstrate numerically that an optimal scheduler buffer size may exist and depends on the number of packets comprising a burst and the size of an edge buffer. We also show that packet blocking probability can be minimized using a simple rule of thumb for determining the optimal size of a scheduler buffer and the number of packets comprising a burst. All our analytical results are validated by way of simulation.
Sponsorship	IEEE Lasers and Electro-Optics Society Optical Society of America
Starting Page	2046
Ending Page	2054
Page Count	9
File Size	684470
File Format	PDF
ISSN	07338724
Volume Number	26
Issue Number	14
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-07-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optimal scheduling Optical buffering Wavelength routing Delay Assembly WDM networks Optical burst switching Wavelength division multiplexing Asynchronous transfer mode Switches optical burst switching (OBS) Blocking probability buffer dimensioning buffer overflow burst scheduling offset time
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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