Overview of Synergetic OFDM Crest Factor Reduction and Digital Pre-Distortion for RF PAs
2011 (English)Conference paper (Other academic)
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
Signal Processing Telecommunications
IdentifiersURN: urn:nbn:se:kth:diva-67312OAI: oai:DiVA.org:kth-67312DiVA: diva2:484823
RF Measurement Technology Conference. Gävle, Sweden. 04.10.2011 - 05.10.2011
QC 201203302012-01-272012-01-272012-03-30Bibliographically approved