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Overview of Synergetic OFDM Crest Factor Reduction and DigitalPre-Distortion for RF PAs
University of Gävle, Faculty of Engineering and Sustainable Development, Department of Electronics, Mathematics and Natural Sciences. (Elektronik)
University of Gävle, Faculty of Engineering and Sustainable Development, Department of Electronics, Mathematics and Natural Sciences. (Elektronik)
Vrije Universiteit Brussel. (ELEC)
University of Gävle, Faculty of Engineering and Sustainable Development, Department of Electronics, Mathematics and Natural Sciences. (Elektronik)ORCID iD: 0000-0001-5429-7223
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2011 (English)In: RFMTC11, 2011Conference paper, Published paper (Other academic)
Abstract [en]

Digital baseband pre-distortion (DPD) is used tolinearize nonlinear RF PAs, crest factor reduction (CFR) toincrease the maximum output power level of RF PAs. Togetherthey result in increased output power with maintained, or even,better linearity. This paper discuss some of the techniquesfor DPD and CFR methods currently under investigation.Measured results for a class-AB PA using OFDM signalsindicate a possibility to increase the power added efficiency(PAE) by at least 15%-points, from 30%to 45%, and a poweroutput increase of 6 dB while maintaining specified ACLRrequirements.

Place, publisher, year, edition, pages
2011.
Keyword [en]
Radio frequency power amplifier, linearization, digital predistortion, crest factor reduction, OFDM
National Category
Telecommunications Signal Processing
Identifiers
URN: urn:nbn:se:hig:diva-11177OAI: oai:DiVA.org:hig-11177DiVA: diva2:471226
Conference
2011 RF Measurement Technology Conference, October 4 to 5 2011, Gävle, Sweden
Funder
Swedish Research Council
Available from: 2012-01-03 Created: 2012-01-02 Last updated: 2016-08-10Bibliographically approved

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Landin, PerNader, CharlesBjörsell, NiklasIsaksson, MagnusHändel, Peter
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