Título:
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Multi-dimensional LUT-based digital predistorter for concurrent dual-band envelope tracking power amplifier linearization
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Autor/a:
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Pham, Thi Quynh Anh; López Bueno, David; Wang, Teng; Montoro López, Gabriel; Gilabert Pinal, Pere Lluís
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Otros autores:
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. CSC - Components and Systems for Communications Research Group |
Abstract:
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Abstract:
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This paper presents a multi lookup table (LUT) implementation scheme for the 3D distributed memory polynomial (3D-DMP) behavioral model used in Digital Predistortion (DPD) linearization for concurrent dual-band envelope tracking (ET) power amplifiers (PAs). The proposed 3DDistributed Memory LUTs (3D-DML) architecture is suitable for efficient FPGA implementation. In order to optimize the linearization performance as well as to reduce the number of resources of the 3D-DML model, a new variant of the Orthogonal Matching Pursuit (OMP) algorithm is proposed to properly select the best LUTs. Experimental results show that the proposed strategy reduces the number of LUTs (i.e. the number of coefficients) while meeting the targeted linearity levels. |
Abstract:
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Peer Reviewed |
Materia(s):
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-Àrees temàtiques de la UPC::Enginyeria electrònica::Electrònica de potència -Power amplifiers -Radio circuits -Envelope tracking -Digital predistortion -Lookup tables -Power amplifier -Amplificadors de potència -Circuits de ràdio |
Derechos:
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Tipo de documento:
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Artículo - Versión presentada Objeto de conferencia |
Editor:
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Institute of Electrical and Electronics Engineers (IEEE)
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