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Channel quality feedback schemes for 3GPP's Evolved-UTRA downlink
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Signals and Systems.ORCID iD: 0000-0001-8647-436X
2006 (English)In: IEEE GLOBECOM 2006: 2006 Global Telecommunications Conference; San Francisco, CA, USA, 27 November - 1 December 2006, Piscataway, NJ: IEEE Communications Society, 2006, article id 4151293Conference paper, Published paper (Refereed)
Abstract [en]

Today's packet-based cellular systems typically are equipped with a channel quality reporting mechanism that supports scheduling and adaptive modulation/coding. When resources are scheduled not only In time but also In frequency the design of the return channel becomes intricate. The feedback signalling must balance improved cell-throughput with deteriorated spectral efficiency In the return link due to excessive signalling. In this contribution we examine system simulation results for the downlink of 3GPP's long-term evolution system equipped with various signalling schemes. The simulations results show that for a certain uplink load In bits/s/Hz, emphasizing the quality of the mobile's best channel instants (assigning these with more signalling bits) provides about 12% higher downlink throughput than capturing the quality of all channel Instants equally well. Moreover, about 95% of the throughput provided by an ideal reference feedback scheme Is obtained.

Place, publisher, year, edition, pages
Piscataway, NJ: IEEE Communications Society, 2006. article id 4151293
Series
Globecom. I E E E Conference and Exhibition, ISSN 1930-529X
National Category
Signal Processing
Research subject
Signal Processing
Identifiers
URN: urn:nbn:se:ltu:diva-28344DOI: 10.1109/GLOCOM.2006.663Local ID: 21e58e51-823a-46f9-825d-3a52c7f75426ISBN: 1-4244-0356-1 (print)ISBN: 1-4244-0357-X (electronic)OAI: oai:DiVA.org:ltu-28344DiVA, id: diva2:1001540
Conference
IEEE GLOBECOM : 27/11/2006 - 01/12/2006
Note
Godkänd; 2006; 20140610 (andbra)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • 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
  • rtf