Browsing by Author "Gilabert Pinal, Pere Lluís"
Now showing items 21-40 of 112
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Análisis Comparativo de Técnicas de Reducción de PAPR en Señales OFDM
Lopez Caro, Alberto; Gilabert Pinal, Pere Lluís; Montoro López, Gabriel; Bertran Albertí, Eduardo; Jové Casals, Jose M. (2009-09)
Conference lecture
Open Access -
Application of pptimal delays selection on parallel cascade Hammerstein models for the prediction of RF-power amplifier behavior
Silveira, Daniel D.; Arthaber, Holger; Gilabert Pinal, Pere Lluís; Magerl, Gottfried; Bertran Albertí, Eduardo (2006-12)
Conference lecture
Open AccessIn this work two different black-box modeling strategies are combined in order to achieve improved RF Power Amplifier (PA) models based on measured input/output signals. The model validation is here done within the low ... -
Arquitecturas de transmisión inalámbrica de alta eficiencia
Gilabert Pinal, Pere Lluís; García, José Angel; de Mingo, Jesús; Montoro López, Gabriel; Cabria, Lorena; Marante, Reinel; García, Paloma; Sánchez, César; Bertran Albertí, Eduardo (2011)
Conference report
Open Access -
Behavioral modeling and linearization of a mm-wave power amplifier
Melczarsky, I; Gilabert Pinal, Pere Lluís; Giacomo, Di V; Bertran Albertí, Eduardo; Filicori, F (2009-04)
Article
Open Access -
Beyond the Moore-Penrose inverse: Strategies for the estimation of digital predistortion linearization parameters
Gilabert Pinal, Pere Lluís; Braithwaite, R. Neil; Montoro López, Gabriel (2020-12)
Article
Open AccessDigital predistortion (DPD) is the linearization technique most often used to cope with the inherent tradeoff between linearity and efficiency in power amplifiers (PAs). Adaptation is needed to optimize DPD performance. ... -
Comparison of feature selection techniques for power amplifier behavioral modeling and digital predistortion linearization
Barry, Abdoul; Li, Wantao; Becerra González, Juan Antonio; Gilabert Pinal, Pere Lluís (Multidisciplinary Digital Publishing Institute (MDPI), 2021-08-27)
Article
Open AccessThe power amplifier (PA) is the most critical subsystem in terms of linearity and power efficiency. Digital predistortion (DPD) is commonly used to mitigate nonlinearities while the PA operates at levels close to saturation, ... -
Comparison of model order reduction techniques for digital predistortion of power amplifiers
Gilabert Pinal, Pere Lluís; Montoro López, Gabriel; Wang, Teng; Ruiz, Nieves; García García, José Ángel (Institute of Electrical and Electronics Engineers (IEEE), 2016)
Conference report
Open AccessThis paper compares and discusses four techniques for model order reduction based on compressed sensing (CS), less relevant basis removal (LRBR), principal component analysis (PCA) and partial least squares (PLS). CS and ... -
Computationally efficient real-time digital predistortion architectures for envelope tracking power amplifiers
Gilabert Pinal, Pere Lluís; Montoro López, Gabriel (2013-03-05)
Article
Open AccessThis paper presents and discusses two possible real-time digital predistortion (DPD) architectures suitable for envelope tracking (ET) power amplifiers (PAs) oriented at a final computationally efficient implementation ... -
Constant-gain envelope tracking in a UHF outphasing transmitter based on continuousmode class-E GaN HEMT PAs
Ruiz Lavin, Maria de las Nieves; Benito, Adán L.; Pérez Cisneros, J. R.; Gilabert Pinal, Pere Lluís; Montoro López, Gabriel; García, J. A. (Institute of Electrical and Electronics Engineers (IEEE), 2016)
Conference report
Restricted access - publisher's policyA UHF outphasing transmitter, based on continuous-mode class-E power amplifiers (PAs) and implementing a constant-gain envelope tracking (ET) strategy, is presented in this paper. Drain terminating and biasing networks are ... -
Dataset reduction for neural network based digital predistorters under strong nonlinearities
López Bueno, David; Gilabert Pinal, Pere Lluís; Montoro López, Gabriel (Institute of Electrical and Electronics Engineers (IEEE), 2021)
Conference report
Open AccessThe artificial neural networks (ANN) are gaining momentum in the digital predistorters (DPD) thanks to their inherently good approximation capabilities. Under strong or complex power amplifier nonlinearities, the size of ... -
Design and digital predistortion linearization of a wideband outphasing amplifier supporting 200 MHz bandwidth
Gilabert Pinal, Pere Lluís; Vegas, David; Ren, Zhixiong; Montoro López, Gabriel; Pérez-Cisneros, José Ramón; Ruiz, Nieves; Si, Xiaoshu; García García, José Ángel (2020)
Conference report
Open AccessThis paper presents a holistic approach to design and linearize a wideband outphasing power amplifier (PA) to efficiently amplify a 200 MHz bandwidth (BW) signal compliant with the Data Over Cable Service Interface ... -
Design and implementation of a GPU-Based digital predistortion linearizer for RF power amplifiers
Li, Wantao; Montoro López, Gabriel; Gilabert Pinal, Pere Lluís (Institute of Electrical and Electronics Engineers (IEEE), 2023)
Conference report
Restricted access - publisher's policyThis paper presents an automated process for generating computationally efficient radiofrequency (RF) power amplifier (PA) behavioural models that can be used for digital-predistortion (DPD) linearization. The implementation ... -
Digital control and predistortion linearization of Dual-input load modulated power amplifiers
Li, Wantao; Thompson, William; Montoro López, Gabriel; Cope, Mark; BenArfi, Anis; Outaleb, Noureddine; Chuang, Kevin; Gilabert Pinal, Pere Lluís (European Space Agency (ESA), 2023)
Conference report
Open AccessIn a satellite communication system, due to the limited amount of energy that can be obtained through photovoltaic cells, there are some constraints on the downlink capabilities, especially for small satellites. A typical ... -
Digital linearization of wideband envelope tracking power amplifiers for mobile terminals
Li, Wantao; Montoro López, Gabriel; Gilabert Pinal, Pere Lluís (IEEE Microwave Theory and Techniques Society, 2023-01)
Article
Open AccessThis article presents a low-complexity linearization method to compensate for multisource nonlinear distortion in wideband envelope tracking (ET) power amplifiers (PAs) for 5G new radio (NR) mobile terminals. The proposed ... -
Digital predistorters go multidimensional: DPD for concurrent multiband envelope tracking and outphasing power amplifiers
Gilabert Pinal, Pere Lluís; Montoro López, Gabriel; Vegas Garcia, Ángel; Ruiz Lavin, Maria de las Nieves; García García, José Ángel (2019-05-01)
Article
Open AccessOver at least the last two decades, digital predistortion (DPD) has become the most common and widespread solution to cope with the power amplifier's (PA's) inherent linearity-versus-efficiency tradeoff. When compared with ... -
Digital predistortion linearization of a GaN HEMT push-pull power amplifier for cable applications with high fractional bandwidth
Gilabert Pinal, Pere Lluís; Pérez-Cisneros, José Ramón; Ren, Zhixiong; Montoro López, Gabriel; Ruiz Lavin, Maria de las Nieves; García García, José Ángel (2023-03-07)
Article
Open AccessThis paper presents two linearization strategies for a custom-designed wideband push-pull (PP) power amplifier (PA) for wired communication applications such as, for example, cable TV. Two digital predistortion (DPD) ... -
Digital predistortion of envelope tracking amplifiers driven by slew-rate limited envelopes
Montoro López, Gabriel; Gilabert Pinal, Pere Lluís; Berenguer Sau, Jordi; Bertran Albertí, Eduardo (IEEE Microwave Theory and Techniques Society, 2011)
Conference report
Restricted access - publisher's policyThis paper presents a new Digital Predistorter (DPD) to compensate for nonlinear distortion that arises in Envelope Tracking (ET) Power Amplifiers (PAs) driven by slew-rate limited versions of the real signal's envelope. ... -
Digital shaping and linearization of a dual-input load-modulated balanced amplifier
Li, Wantao; Montoro López, Gabriel; Thompson, William; Chuang, Kevin; Gilabert Pinal, Pere Lluís (Institute of Electrical and Electronics Engineers (IEEE), 2023)
Conference report
Restricted access - publisher's policyThis paper presents shaping and linearization techniques to trade-off linearity and power efficiency in a dual-input pseudo-Doherty load-modulated balanced amplifier (PD-LMBA). The proposed shaping function is defined to ... -
Dynamic selection and estimation of the digital predistorter parameters for power amplifier linearization
Pham, Thi Quynh Anh; Montoro López, Gabriel; López Bueno, David; Gilabert Pinal, Pere Lluís (IEEE Microwave Theory and Techniques Society, 2019-07-03)
Article
Open AccessThis paper presents a new technique that dynamically estimates and updates the coefficients of a digital predistorter (DPD) for power amplifier (PA) linearization. The proposed technique is dynamic in the sense of estimating, ... -
Dynamic selection and update of digital predistorter coefficients for power amplifier linearization
Pham, Thi Quynh Anh; López Bueno, David; Montoro López, Gabriel; Gilabert Pinal, Pere Lluís (Institute of Electrical and Electronics Engineers (IEEE), 2019)
Conference lecture
Restricted access - publisher's policyIn this paper, a new method for dynamically estimating and updating the coefficients of a digital predistortion (DPD) linearizer is presented. By means of the partial least squares (PLS) algorithm, the basis matrix used ...