NDLI: A new penalty based algorithm for multi-user Spectrum Balancing in xDSL networks

Content Provider	IEEE Xplore Digital Library
Author	McKinley, Alastair Marshall, Alan
Copyright Year	2008
Description	Author affiliation: School of Electronics, Electrical Engineering and Computer Science, Queens University Belfast, UK (McKinley, Alastair; Marshall, Alan)
Abstract	This work presents a new algorithm for Dynamic Spectrum Management (DSM) in Digital Subscriber Lines. Previous approaches have achieved high performance by attempting to directly solve or approximate the multiuser spectrum optimisation problem. These methods suffer from a high or intractable computational complexity for even a moderate number of DSL lines. A new method is proposed which is a heuristic extension of the single user greedy algorithm applied to the multi-user case. The new algorithm incorporates a novel cost function that penalises crosstalk as well as considering the usefulness of a tone. Simulation results are presented and it is shown that the new method achieves results within a few percent of the optimal solution for a range of scenarios.
Starting Page	1
Ending Page	6
File Size	174099
Page Count	6
File Format	PDF
ISBN	9789638111685
DOI	10.1109/NETWKS.2008.6231240
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-09-28
Publisher Place	Hungary
Access Restriction	Subscribed
Rights Holder	Scientific Assoc for Infocom
Subject Keyword	Greedy algorithms greedy bit-loading Loading Dynamic Spectrum Management Crosstalk Cost function Vectors DSL Digital Subscriber Lines Equations
Content Type	Text
Resource Type	Article

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