A Modified Decomposed Vector Rotation-Based Behavioral Model With Efficient Hardware Implementation for Digital Predistortion of RF Power Amplifiers

DC FieldValueLanguage
dc.contributor.authorCao, Wenhui-
dc.contributor.authorZhu, Anding-
dc.date.accessioned2017-02-28T13:35:58Z-
dc.date.available2017-02-28T13:35:58Z-
dc.date.copyright2017 IEEEen
dc.date.issued2017-01-23-
dc.identifier.citationIEEE Transactions on Microwave Theory and Techniquesen
dc.identifier.urihttp://hdl.handle.net/10197/8380-
dc.description.abstractThis paper proposes a novel hardware implementation strategy to achieve low-cost design for digital predistortion (DPD) of radio frequency (RF) power amplifiers (PAs) using a modified decomposed vector rotation (DVR)-based behavioral model. To make the model hardware friendly, we first modify the model into a sub-decomposed format which significantly reduces the computational complexity in model extraction. We then reassemble the coefficients and propose a simple digital implementation structure for real-time signal processing in the transmit path. A new Dual-Direction COordinate Rotation DIgital Computer (DD-CORDIC) design is also proposed to simultaneously calculate both magnitude and 𝒆𝒋𝜽𝒏 values to facilitate the model implementation. To validate hardware implementation, a wide-band signal is employed to evaluate the performance with a Doherty power amplifier. Experimental results show that the proposed approach can achieve comparable performance with much lower system complexity compared to that using the conventional approaches.en
dc.language.isoenen
dc.publisherIEEEen
dc.rights© 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.en
dc.subjectBehavioral modelen
dc.subjectCORDICen
dc.subjectDigital predistortionen
dc.subjectModel extractionen
dc.subjectPower amplifieren
dc.subjectRadio frequencyen
dc.titleA Modified Decomposed Vector Rotation-Based Behavioral Model With Efficient Hardware Implementation for Digital Predistortion of RF Power Amplifiersen
dc.typeJournal Articleen
dc.internal.authorcontactotheranding.zhu@ucd.ie-
dc.statusPeer revieweden
dc.identifier.volumePPen
dc.identifier.issue99en
dc.identifier.startpage1en
dc.identifier.endpage10en
dc.identifier.doi10.1109/TMTT.2016.2640318-
dc.neeo.contributorCao|Wenhui|aut|-
dc.neeo.contributorZhu|Anding|aut|-
dc.internal.rmsid702187914-
dc.date.updated2017-01-26T12:59:29Z-
item.fulltextWith Fulltext-
item.grantfulltextopen-
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