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Dynamic spectrum management for energy-efficient transmission in DSL
FTW, Österrike.
FTW, Österrike.
FTW, Österrike.ORCID iD: 0000-0002-0562-2082
2008 (English)In: ICCS 2008: 11th IEEE Singapore International Conference on Communication Systems, 2008 : 19-21 Nov. 2008, [Guangzhou, China], Piscataway, N.J.: IEEE Press, 2008, 1015-1020 p.Conference paper, Published paper (Refereed)
Abstract [en]

Dynamic spectrum management (DSM) is an important technique for mitigating crosstalk noise in multi-user digital subscriber line (DSL) environments. Until now, most of the proposed algorithms for DSM have been designed solely for the purpose of bitrate maximization. These algorithms assume a fixed maximum total power and neglect the energy consumption in DSL modems. However, since recently there is a strong interest in the DSL field to reduce energy consumption as shown, e.g., by the European Commissions' code of conduct on energy consumption of broadband equipment. In contrast to traditional DSM, this paper will show how DSM can be used for minimizing the energy consumption. We will formulate a global optimization problem for energy minimization and discuss several of its peculiarities compared to the current DSM problems. Furthermore, we derive an iterative, dual-based and semi-distributed algorithm for its local solution, which we call energy-efficient spectrum balancing (EESB). The performance of the algorithm is evaluated through simulations, which show similar results to optimal schemes. In addition, EESB achieves substantial energy savings that can be exploited by adapting the transmit powers to users' bitrate demand. © 2008 IEEE.

Place, publisher, year, edition, pages
Piscataway, N.J.: IEEE Press, 2008. 1015-1020 p.
Keyword [en]
DSL, Dual relaxation, Dynamic spectrum management, Energy efficiency
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:hh:diva-21183DOI: 10.1109/ICCS.2008.4737336ISI: 000269000100205Scopus ID: 2-s2.0-62949180343ISBN: 978-1-4244-2423-8 OAI: oai:DiVA.org:hh-21183DiVA: diva2:588900
Conference
The 11th IEEE International Conference on Communications Systems (ICCS2008), Guangzhou, China, Nov. 19-21, 2008
Available from: 2013-01-16 Created: 2013-01-16 Last updated: 2013-02-26Bibliographically approved

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
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