Precise Delay Estimation and Compensation for Real-time Adaptive Digital Predistortion

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dc.contributor.advisorGhannouchi, F. M.
dc.contributor.authorRafay, Abdul
dc.contributor.committeememberHelaoui, Mohamed Mohamed
dc.contributor.committeememberPahlevani, Majid
dc.contributor.committeememberYadid-Pecht, Orly
dc.date2018-11
dc.date.accessioned2018-05-24T19:31:42Z
dc.date.available2018-05-24T19:31:42Z
dc.date.issued2018-05-17
dc.description.abstractReal-time implementation of digital predistortion (DPD), a technique for linearizing power amplifiers, has gained importance recently due to stringent transceiver performance specifications for future wireless networks. Precise delay estimation and alignment is imperative for any DPD algorithm to work. Several algorithms are present in the literature on the topic. However, the difficulties arise from energy efficiency and the low-cost implementation of these algorithms. The goal of this work is to implement real-time delay alignment of high bandwidth signals for transmitter impairment compensation in systems using low sampling rate analog-to-digital converters (ADCs). The proposed system uses a resource efficient and scalable design which is based on correlation and fractional delay filters, which can be implemented in the hardware and seamlessly integrated with any DPD system. Both simulation and hardware results, on field programmable gate arrays (FPGAs), have shown improvement in DPD performance when the delay estimation system is employed.en_US
dc.identifier.citationRafay, A. (2018). Precise Delay Estimation and Compensation for Real-time Adaptive Digital Predistortion (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/31935en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/31935
dc.identifier.urihttp://hdl.handle.net/1880/106664
dc.language.isoeng
dc.publisher.facultyGraduate Studies
dc.publisher.facultySchulich School of Engineering
dc.publisher.institutionUniversity of Calgaryen
dc.publisher.placeCalgaryen
dc.rightsUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.
dc.subjectfractional delay estimation
dc.subjectalignment
dc.subjectdigital predistortion
dc.subjectpower amplifiers
dc.subjectFPGA
dc.subject.classificationEngineeringen_US
dc.subject.classificationEngineering--Electronics and Electricalen_US
dc.titlePrecise Delay Estimation and Compensation for Real-time Adaptive Digital Predistortion
dc.typemaster thesis
thesis.degree.disciplineElectrical and Computer Engineering
thesis.degree.grantorUniversity of Calgary
thesis.degree.nameMaster of Science (MSc)
ucalgary.item.requestcopytrue
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