- idUS
- Listar por autor
Listar por autor "Crespo Cadenas, Carlos"
Mostrando ítems 1-20 de 29
-
Artículo
A bivariate volterra series model for the design of power amplifier digital predistorters
Crespo Cadenas, Carlos; Madero Ayora, María José; Becerra González, Juan Antonio (MDPI, 2021)The operation of the power amplifier (PA) in wireless transmitters presents a trade-off between linearity and power ...
-
Artículo
A Doubly Orthogonal Matching Pursuit Algorithm for Sparse Predistortion of Power Amplifiers
Becerra González, Juan Antonio; Madero Ayora, María José; Reina Tosina, Luis Javier; Crespo Cadenas, Carlos; García-Frías, Javier; Arce, Gonzalo (IEEE, 2018-08)This letter presents a new method for the digital predistortion (DPD) of power amplifiers (PAs) based on sparse behavioral ...
-
Artículo
A New Approach to Pruning Volterra Models for Power Amplifiers
Crespo Cadenas, Carlos; Reina Tosina, Luis Javier; Madero Ayora, María José; Muñoz-Cruzado, Jesús (IEEE, 2010-04)The objective of this paper is to present an approach to behavioral modeling that can be applied to predict the nonlinear ...
-
Artículo
A Sparse-Bayesian Approach for the Design of Robust Digital Predistorters Under Power-Varying Operation
Crespo Cadenas, Carlos; Madero Ayora, María José; Becerra González, Juan Antonio; Cruces Álvarez, Sergio Antonio (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2022)In this article, a sparse-Bayesian treatment is proposed to solve the crucial questions posed by power amplifier (PA) ...
-
Tesis Doctoral
Advanced signal processing techniques for the modeling and linearization of wireless communication systems.
Becerra González, Juan Antonio (2019-02-14)Los nuevos estándares de comunicaciones digitales inalámbricas están impulsando el diseño de amplificadores de potencia ...
-
Artículo
Amplifier Nonlinear Modeling with RF Pulses
Crespo Cadenas, Carlos; Reina Tosina, Luis Javier; Madero Ayora, María José (IEEE, 2008-11)This paper proposes a Volterra kernel identification procedure for wireless amplifiers with nonlinear memory. The technique ...
-
Artículo
An Impedance-Based Model for the Evaluation of IM3 in Nonlinear Amplifiers Showing Memory Effects
Madero Ayora, María José; Reina Tosina, Luis Javier; Crespo Cadenas, Carlos (Wiley, 2008-03)A simple model that captures nonlinear memory effects inwideband amplifiers is presented in this work. The model defines ...
-
Artículo
An Upgraded Dual-Band Digital Predistorter Model for Power Amplifiers Linearization
Pérez Hernández, Abraham; Becerra González, Juan Antonio; Madero Ayora, María José; Crespo Cadenas, Carlos (IEEE, 2021-01)Digital predistortion (DPD) based on Volterra models is commonly employed to counteract the nonlinear distortion of power ...
-
Tesis Doctoral
Analysis and experimental characterization of nonlinear circuits applied to wireless communications systems
Madero Ayora, María José (2008)La Tesis realizada pretende dar una visión amplia y detallada sobre el análisis de circuitos no lineales para comunicaciones ...
-
Trabajo Fin de Grado
La capa física de los futuros sistemas de 5ª Generación 5G
Arias Macías, Luis Fernando (2016)Este trabajo se centra en la investigación de una futura capa física que de soporte a la generación de telefonía móvil ...
-
Artículo
Circuit-level simulation of W-CDMA communication systems applied to the analysis of nonlinear distortion
Madero Ayora, María José; Reina Tosina, Luis Javier; Freire-Pérez, Ramón; Crespo Cadenas, Carlos (Wiley, 2004-11)Different circuit-level approaches to analyze the effects of non linear distortion on coded division multiple access (CDMA) ...
-
Artículo
Comparative Analysis of Greedy Pursuits for the Order Reduction of Wideband Digital Predistorters
Becerra González, Juan Antonio; Madero Ayora, María José; Crespo Cadenas, Carlos (IEEE, 2019-09)This paper provides a review of greedy pursuits for optimizing Volterra-based behavioral models structure and estimating ...
-
Trabajo Fin de Grado
Despliegue de sistema de comunicaciones ópticas en emplazamiento situado en cliente Empresa para implementación de la tecnología 5G
Acuña Goñi, Claudia (2020)Este proyecto de fin de grado consiste en un documento teórico-práctico que aborda el estudio de una red FTTN (Fiber To ...
-
Artículo
Digital predistortion of power amplifiers using structured compressed-sensing Volterra series
Becerra González, Juan Antonio; Madero Ayora, María José; Reina Tosina, Luis Javier; Crespo Cadenas, Carlos (The Institution of Engineering and Technology, 2017-01)Digital predistortion has become an attractive technique for power amplifier linearisation whose limiting factor for using ...
-
Artículo
Digital predistortion technique with in-band interference optimisation applied to DVB-T2
Allegue-Martínez, Michel; Madero Ayora, María José; Doblado, J.G.; Crespo Cadenas, Carlos; Reina Tosina, Luis Javier; Baena Lecuyer, Vicente (The Institution of Engineering and Technology, 2012-05)The efficient transmission and nonlinear modelling of orthogonal frequency division multiplexing (OFDM) signals are difficult ...
-
Trabajo Fin de Grado
Estudio de formatos de señales para los futuros sistemas de comunicaciones de 5ª generación 5G.
Sánchez Muñoz, Eugenio José (2018)La modulación OFDM ha sido la modulación multiportadora más empleada en los estándares de comunicaciones inalámbricas ...
-
Artículo
Experimental study of two-tone intermodulation products in a communications modulator
Madero Ayora, María José; Allegue-Martínez, Michel; Crespo Cadenas, Carlos; Reina Tosina, Luis Javier; Navarro-Lázaro, Javier (Wiley, 2011-01)This article presents the experimental nonlinear characterization of a quadrature modulator following a two‐tone test ...
-
Artículo
Formal deduction of a Volterra series model for complex-valued systems
Crespo Cadenas, Carlos; Madero Ayora, María José; Reina Tosina, Luis Javier; Becerra González, Juan Antonio (Elsevier, 2017-02)This paper demonstrates a general model for nonlinear systems with complex-valued inputs and its application to communication ...
-
Tesis Doctoral
Modeling and compensation of non-linear effects in wireless communications systems
Allegue-Martínez, Michel (2012)La Ingeniería de Microondas y Radiofrecuencia ha ido adquiriendo una importancia cada vez mayor en los últimos años, ...
-
Artículo
Nonlinear effects in lte downlink signals and application of a compensation technique at the receiver side
Allegue-Martínez, Michel; Madero Ayora, María José; Crespo Cadenas, Carlos; Reina Tosina, Luis Javier; Bernardo, Francisco (Wiley, 2012-01)This article proposes a nonlinear compensation technique for long-term evolution downlink signals based on the memoryless ...