Thresholds Optimization of Decomposed Vector Rotation Model for Digital Predistortion of RF Power Amplifier

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dc.contributor.authorKantana, Chouaib
dc.contributor.authorBaudoin, Genevieve
dc.contributor.authorVenard, Olivier
dc.coverage.issue1cs
dc.coverage.volume30cs
dc.date.accessioned2021-04-30T12:27:14Z
dc.date.available2021-04-30T12:27:14Z
dc.date.issued2021-04cs
dc.description.abstractIn this paper, we propose an efficient approach for optimizing the decomposed vector rotation (DVR) model for digital predistortion (DPD). The DVR model’s basis functions are constructed piecewise by dividing the input space into segments bounded by thresholds. This paper investigates how to set the thresholds optimally using an iterative approach based on the decomposition of the global optimization problem into a set of unimodal sub-problems so that a unidirectional minimization can be used to optimize the positions of thresholds. The proposed approach has been evaluated using measurements from a real power amplifier (PA). The experimental results illustrate the efficiency of the proposed optimization approach and show that the thresholds’ optimization improves linearization performances significantly compared to conventional DVR with uniform segmentation.en
dc.formattextcs
dc.format.extent250-258cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2021 vol. 30, č. 1, s. 250-258. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2021.0250en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/196645
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttps://www.radioeng.cz/fulltexts/2021/21_01_0250_0258.pdfcs
dc.rightsCreative Commons Attribution 4.0 International licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectPower amplifiersen
dc.subjectdigital predistortionen
dc.subjectDVRen
dc.subjectoptimization of thresholdsen
dc.titleThresholds Optimization of Decomposed Vector Rotation Model for Digital Predistortion of RF Power Amplifieren
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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