NDLI: A dynamically adaptive hybrid algorithm for scheduling lightpaths in lambda-grids

Content Provider	IEEE Xplore Digital Library
Author	Kaushik, N.R. Figueira, S.M.
Copyright Year	2005
Description	Author affiliation: Dept. of Comput. Eng., Santa Clara Univ., CA, USA (Kaushik, N.R.; Figueira, S.M.)
Abstract	This paper focuses on the scheduling of multiple-wavelength lightpaths and outlines an algorithm to provide increased simultaneous allocations of lightpaths on the lambda-grid. Several approaches for lightpath scheduling have been proposed, and most of them involve some variation of concentrating or balancing wavelengths over the edge-disjoint paths between the source and destination specified in a request. We have used our LRSS, lightpath request scheduling simulator, to show that the efficiency of balancing- and concentrating-based algorithms depends on the characteristics of the lightpaths requested. Based on this assumption, we have developed a dynamically adaptive hybrid algorithm, which combines both balancing and concentrating, employing each of the approaches when appropriate. The efficiency of the new algorithm is assessed by comparing its performance with the performance of the two basic approaches. Our experiments show that the dynamically adaptive hybrid scheduling algorithm has a blocking probability that is always close to the lower one, for a representative set of topologies under a representative set of traffic conditions.
Starting Page	418
Ending Page	425
File Size	5232602
Page Count	8
File Format	PDF
ISBN	0780390741
DOI	10.1109/CCGRID.2005.1558585
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-05-09
Publisher Place	United Kingdom
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Heuristic algorithms Scheduling algorithm Dynamic scheduling Optical fiber networks Processor scheduling Telecommunication traffic Collaboration Optical wavelength conversion Upper bound Bandwidth
Content Type	Text
Resource Type	Article

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