NDLI: Distributive waveband assignment in multi-granular optical networks

Content Provider	IEEE Xplore Digital Library
Author	Yang Wang Xiaojun Cao
Copyright Year	2010
Description	Author affiliation: Department of Computer Science Georgia State University Atlanta, Georgia 30303 (Yang Wang) \|\| Department of Computer Science, Georgia State University, Atlanta, Georgia 30303 (Xiaojun Cao)
Abstract	To handle the challenge of increasing node size in wavelength routing networks (WRNs), waveband switching (WBS) is introduced to group multiple wavelengths together as a band or fiber and switch them using a single port whenever possible. Literature studies with the off-line traffic confirm that WBS can effectively reduce the port count and cost as well as control complexity. In the cases with online traffic, both the port reduction and call blocking probability should be considered due to the unknown traffic pattern and limited resources. In this work, we first analyze a reconfigurable switching architecture and the blocking probability in WBS networks. Based on the analysis, we then propose a novel dynamic graph-based waveband assignment algorithm in conjunction with adaptive routing. The proposed algorithm employs the ant optimization techniques to reduce ports and blocking probability in the network with online traffic in a distributed manner. Our simulation results show that our graph-based waveband assignment algorithm combined with the adaptive routing scheme can achieve the best performance when compared to other schemes. Our study also shows that even with limited resources, WBS can achieve port saving and an allowable blocking probability.
Starting Page	1
Ending Page	9
File Size	553198
Page Count	9
File Format	PDF
ISBN	9781424464425
ISSN	15302075
e-ISBN	9781424464432
DOI	10.1109/IPDPS.2010.5470457
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-04-19
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optical fiber networks Telecommunication traffic Wavelength routing Costs Wavelength division multiplexing Communication system traffic control Computer science Traffic control Optical switches Algorithm design and analysis
Content Type	Text
Resource Type	Article

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