Sub-Band Digital Predistortion for Noncontiguous Carriers: Implementation and Testing

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dc.contributor.advisorCavallaro, Josephen_US
dc.creatorTarver, Chance Aen_US
dc.date.accessioned2017-08-03T14:47:38Zen_US
dc.date.available2017-08-03T14:47:38Zen_US
dc.date.created2016-05en_US
dc.date.issued2016-04-22en_US
dc.date.submittedMay 2016en_US
dc.date.updated2017-08-03T14:47:39Zen_US
dc.description.abstractTo facilitate increasing data-rate demands and spectrum scarcity, non-contiguous transmission schemes are becoming more popular. However the non-contiguous carriers of such schemes intermodulate due to the nonlinear nature of power amplifiers (PAs). This may cause emissions which interfere with nearby channels or with one's own receiver in a frequency division duplexing transceiver. We implement a low-complexity, sub-band, block-adaptive, digital predistortion (DPD) solution that corrects the distortion in a real PA. Using WARPLab we correct up to ninth-order nonlinearities, and using a real-time FPGA design we correct up to third-order nonlinearities. This is done by targeting the most problematic spurious distortion components at the PA output and performing least mean squares training to adapt an inverse spur to inject. This sub-band method allows for reduced processing complexity over other full-band predistortion solutions. Using these techniques, we are able to suppress spurious emissions in WARP by over 20 dB.en_US
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationTarver, Chance A. "Sub-Band Digital Predistortion for Noncontiguous Carriers: Implementation and Testing." (2016) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/96532">https://hdl.handle.net/1911/96532</a>.en_US
dc.identifier.urihttps://hdl.handle.net/1911/96532en_US
dc.language.isoengen_US
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.subjectDigital Predistortionen_US
dc.subjectLTEen_US
dc.subjectWirelessen_US
dc.subjectcarrier aggregationen_US
dc.subjectFPGAen_US
dc.subjectpower amplifier nonlinearityen_US
dc.titleSub-Band Digital Predistortion for Noncontiguous Carriers: Implementation and Testingen_US
dc.typeThesisen_US
dc.type.materialTexten_US
thesis.degree.departmentElectrical and Computer Engineeringen_US
thesis.degree.disciplineEngineeringen_US
thesis.degree.grantorRice Universityen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Scienceen_US
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