Enhanced Power Efficiency of Mobile OFDM Radio using Pre-distortion and Post-compensation

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dc.citation.bibtexNameinproceedingsen_US
dc.citation.conferenceNameIEEE Vehicular Technology Conference (VTC)en_US
dc.citation.firstpage214en_US
dc.citation.lastpage218en_US
dc.citation.volumeNumber1en_US
dc.contributor.authorGuo, Yuanbinen_US
dc.contributor.authorCavallaro, Joseph R.en_US
dc.contributor.orgCenter for Multimedia Communications (http://cmc.rice.edu/)en_US
dc.date.accessioned2007-10-31T00:45:43Zen_US
dc.date.available2007-10-31T00:45:43Zen_US
dc.date.issued2002-09-20en_US
dc.date.modified2003-12-02en_US
dc.date.note2003-12-20en_US
dc.date.submitted2002-09-20en_US
dc.descriptionConference Paperen_US
dc.description.abstractHigh power efficiency is an important requirement in cellular transmitter radios. OFDM systems require very linear transmission because of high peak-to-average power-ratio (PAPR). However, linear power amplifiers (PA) have very low efficiency. To enhance the power efficiency, non-linear PAs are applied and even forced to work near the saturation point. This generates inevitably huge non-linear distortion and spectrum re-growth. In this paper we propose a novel scheme to enhance the power efficiency of the mobile OFDM radio using polynomial-based pre-distortion and post-compensation. We estimate both the non-linearity and inverse non-linearity of the RF transmitter modeled by a memory-less polynomial with Least Square Error (LSE) method. These parameters can then be used to either construct a closed-form pre-distorter or easily generate the post-compensation signal to cancel the non-linear distortion at the RF output.en_US
dc.description.sponsorshipTexas Advanced Technology Programen_US
dc.description.sponsorshipNational Science Foundationen_US
dc.identifier.citationY. Guo and J. R. Cavallaro, "Enhanced Power Efficiency of Mobile OFDM Radio using Pre-distortion and Post-compensation," vol. 1, 2002.en_US
dc.identifier.doihttp://dx.doi.org/10.1109/VETECF.2002.1040335en_US
dc.identifier.urihttps://hdl.handle.net/1911/19923en_US
dc.language.isoengen_US
dc.subjectPower Efficiencyen_US
dc.subjectOFDMen_US
dc.subjectnon-lineariryen_US
dc.subject.keywordPower Efficiencyen_US
dc.subject.keywordOFDMen_US
dc.subject.keywordnon-lineariryen_US
dc.titleEnhanced Power Efficiency of Mobile OFDM Radio using Pre-distortion and Post-compensationen_US
dc.typeConference paperen_US
dc.type.dcmiTexten_US
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