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Piecewise linear relaying: A low complexity parametric relaying
KTH, School of Electrical Engineering (EES), Communication Theory.
KTH, School of Electrical Engineering (EES), Communication Theory.ORCID iD: 0000-0002-7926-5081
2009 (English)In: SPAWC: 2009 IEEE 10TH WORKSHOP ON SIGNAL PROCESSING ADVANCES IN WIRELESS COMMUNICATIONS, NEW YORK: IEEE , 2009, 255-259 p.Conference paper, Published paper (Refereed)
Abstract [en]

We investigate the Gaussian, three-nodes relay channel with orthogonal receive components, i.e., the transmitted signals from the source and the relay do not interfere with each other. We develop and analyze low-complexity symbol-wise (as opposed to block-wise) relaying strategies based on a one-dimensional, parametric piecewise linear (PL) mapping. We numerically compute and optimize the achievable rates obtained by the PL mapping for a certain number of design parameters. We conclude that optimized PL relaying always outperforms conventional instantaneous linear relaying (amplify-and-forward). We also illustrate that the proposed PL relaying can improve on sophisticated block Markov encoding (i.e., decode-and-forward) when the source-relay link is ill-conditioned (relative to other links). Furthermore, PL relaying can work at rates close to those achieved by side-information encoding (i.e., compress-and-forward), but at a much lower complexity.

Place, publisher, year, edition, pages
NEW YORK: IEEE , 2009. 255-259 p.
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-28939DOI: 10.1109/SPAWC.2009.5161786ISI: 000274650700052Scopus ID: 2-s2.0-70449595713ISBN: 978-1-4244-3695-8 (print)OAI: oai:DiVA.org:kth-28939DiVA: diva2:399599
Conference
10th IEEE Workshop on Signal Processing Advances in Wireless Communications Perugia, ITALY, JUN 21-24, 2009
Note
QC 20110223Available from: 2011-02-23 Created: 2011-01-25 Last updated: 2011-02-23Bibliographically approved

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Skoglund, Mikael

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CiteExportLink to record
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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
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