NDLI: Contention Resolution for Optical Switching: Tuning the Channel and Delay Selection Algorithm

Content Provider	IEEE Xplore Digital Library
Author	Rogiest, W. De Turck, K. Laevens, K. Wittevrongel, S. Bruneel, H.
Copyright Year	2010
Abstract	Optical packet switching and burst switching provide future-proof alternatives to the current electronic switching in the backbone. To resolve burst (or packet) contention, fiber delay lines are put to use as buffers, as vital part of a channel and delay selection (CDS) algorithm. In case no void-filling is applied, earlier studies pointed out that minimal loss is obtained by selecting delay lines and channels according to a minimal gap (MING) strategy. The current contribution reexamines this strategy, and presents a general CDS optimization method based on a Markov decision process. Applying this method to a specific setting, we found that several well-tuned CDS algorithm outperform MING. Exact expressions are given for a two-channel configuration with general inter-arrival times and fixed burst sizes. Detailed results for CDS optimization of a specific setting are included, showing that the traffic load has a crucial impact on the optimum found. Some CDS algorithms consistently outperform MING (for any value of the load), whereas others are only optimized for either high or low traffic load.
Starting Page	10
Ending Page	15
File Size	201290
Page Count	6
File Format	PDF
ISBN	9781424460830
e-ISBN	9781424460847
DOI	10.1109/ICN.2010.10
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-04-11
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	optical burst switching Optical wavelength conversion Telecommunication traffic optical buffer contention resolution performance evaluation Optical burst switching Markov decision process. Communication switching Wavelength routing optical packet switching Space technology Optical buffering Delay lines Optical tuning Optical packet switching
Content Type	Text
Resource Type	Article

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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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