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High Efficiency RF Transmitter System Architecture Investigation for Mobile WiMAX Applications
KTH, School of Information and Communication Technology (ICT), Centres, VinnExcellence Center for Intelligence in Paper and Packaging, iPACK.
KTH, School of Information and Communication Technology (ICT), Centres, VinnExcellence Center for Intelligence in Paper and Packaging, iPACK.
KTH, School of Information and Communication Technology (ICT), Centres, VinnExcellence Center for Intelligence in Paper and Packaging, iPACK.
Catena Wireless AB.
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2008 (English)Manuscript (preprint) (Other academic)
Abstract [en]

Wireless broadband digital communicationsystems are facing more and more critical power efficiencyproblems. Crest Factor (PAPR) is reported to be in 10-12dBrange for WiMAX 802.16e systems implementing OFDMIFFT-1024 and 64-QAM modulation. In this work,outphasing (LINC) and Polar transmitter architectures areinvestigated and compared with Direct Conversionarchitecture. Complete system solution targeting 23dBmoutput power is evaluated. Simulation result shows LINCconsumes more power than DC if non-clipping modulationscheme used and its complete system efficiency may not be ashigh as expected when linear combiner used. And polarsystem has stringent 3 degree phase matching and 0.5dB gainmatching requirements constrained by RCE and spectrummask specifications.

Place, publisher, year, edition, pages
2008.
Keyword [en]
WiMAX, OFDM, IFFT, LINC, Polar, Power Amplifier, Power Combiner.
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:kth:diva-72176OAI: oai:DiVA.org:kth-72176DiVA: diva2:487309
Projects
iPack
Note

QC 20130422

Available from: 2013-04-22 Created: 2012-01-31 Last updated: 2013-04-22Bibliographically approved

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fulltext(143 kB)629 downloads
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Rong, LiangJonsson, FredrikZheng, Li-Rong
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CiteExportLink to record
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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
  • rtf