Digital Predistortion for Joint Mitigation of I/Q Imbalance and MIMO Power Amplifier Distortion

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dc.contributor.authorAhmed Khan, Zain
dc.contributor.authorZenteno Bolaños, Efrain
dc.contributor.authorHändel, Peter
dc.contributor.authorIsaksson, Magnus
dc.date.accessioned2019-01-29T22:19:51Z
dc.date.available2019-01-29T22:19:51Z
dc.date.issued2017
dc.description.abstractThis paper analyzes the joint effects of in-phase and quadrature (I/Q) imbalance and power amplifier (PA) distortion for RF multiple input multiple output (MIMO) transmitters in the presence of crosstalk. This paper proposes candidate models for the digital predistortion of static I/Q imbalanced sources exciting a dynamic MIMO Volterra system. The proposed models are enhanced using a novel technique based on subsample resolution to account for dynamic I/Q imbalance distortions. Finally, the computational complexity of the proposed models is analyzed for implementation suitability in digital platforms. It is shown that the error spectrum for the proposed models in subsample resolution reaches the noise floor of the measurements. The proposed models achieve a normalized mean squared error of-50 dB and an adjacent channel power ratio of-57 dB for signal bandwidths upto 65 MHz and crosstalk levels ranging to-10 dB. These results demonstrate the effectiveness of the proposed techniques in the joint mitigation of I/Q imbalance and PA distortion with crosstalk for a typical 2 × 2 MIMO telecommunication setup. © 2016 IEEE.es_PE
dc.description.uriTrabajo de investigaciónes_PE
dc.identifier.doihttps://doi.org/10.1109/TMTT.2016.2614933es_PE
dc.identifier.issn189480es_PE
dc.identifier.urihttps://hdl.handle.net/20.500.12590/15810
dc.language.isoenges_PE
dc.publisherInstitute of Electrical and Electronics Engineers Inc.es_PE
dc.relation.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84992060969&doi=10.1109%2fTMTT.2016.2614933&partnerID=40&md5=es_PE
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_PE
dc.sourceRepositorio Institucional - UCSPes_PE
dc.sourceUniversidad Católica San Pabloes_PE
dc.sourceScopuses_PE
dc.subjectAmplifiers (electronic)es_PE
dc.subjectControl systemses_PE
dc.subjectCrosstalkes_PE
dc.subjectMean square errores_PE
dc.subjectPower amplifierses_PE
dc.subjectAdjacent channel power ratioes_PE
dc.subjectAmplifier distortiones_PE
dc.subjectCandidate modelses_PE
dc.subjectCross-talk levelses_PE
dc.subjectDigital platformses_PE
dc.subjectDigital predistortiones_PE
dc.subjectNormalized mean squared errorses_PE
dc.subjectVolterra systemses_PE
dc.subjectMIMO systemses_PE
dc.subject.ocdehttps://purl.org/pe-repo/ocde/ford#2.02.01es_PE
dc.titleDigital Predistortion for Joint Mitigation of I/Q Imbalance and MIMO Power Amplifier Distortiones_PE
dc.typeinfo:eu-repo/semantics/article
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