Digital predistortion of LTE-A power amplifiers using compressed-sampling-based unstructured pruning of Volterra series
A Abdelhafiz, A Kwan, O Hammi… - IEEE Transactions on …, 2014 - ieeexplore.ieee.org
This paper presents a method for pruning power amplifier (PA) behavioral models and
digital predistorters based on compressed sampling theory. Using this method, the number …
digital predistorters based on compressed sampling theory. Using this method, the number …
Output impedance mismatch effects on the linearity performance of digitally predistorted power amplifiers
This paper analyzes the effects of load impedance mismatch in power amplifiers which
linearity has been enhanced using various digital predistortion (DPD) algorithms. Two …
linearity has been enhanced using various digital predistortion (DPD) algorithms. Two …
A parameter‐reduced Volterra model for dynamic RF power amplifier modeling based on orthonormal basis functions
M Isaksson, D Rönnow - … of RF and Microwave Computer‐Aided …, 2007 - Wiley Online Library
A nonlinear dynamic behavioral model for radio frequency power amplifiers is presented. It
uses orthonormal basis functions, Kautz functions, with complex poles that are different for …
uses orthonormal basis functions, Kautz functions, with complex poles that are different for …
Energy-efficient digital predistortion with lookup table training using analog Cartesian feedback
SW Chung, JW Holloway… - IEEE Transactions on …, 2008 - ieeexplore.ieee.org
We demonstrate energy-efficient low-complexity adaptive linearization for wideband
handset power amplifiers (PAs). Due to power overhead and complexity, traditional …
handset power amplifiers (PAs). Due to power overhead and complexity, traditional …
Digital predistortion of single and concurrent dual-band radio frequency GaN amplifiers with strong nonlinear memory effects
Electrical anomalies due to trapping effects in gallium nitride (GaN) power amplifiers (PAs)
give rise to long-term or strong memory effects. We propose novel models based on infinite …
give rise to long-term or strong memory effects. We propose novel models based on infinite …
Distortion mitigation in RF power amplifiers through FPGA-based amplitude and phase predistortion
JL Mato, M Pereira… - IEEE Transactions …, 2008 - ieeexplore.ieee.org
Strong requirements are currently imposed to limit the negative effects of distortion or bad
synchronization between emitter and receiver in digital communication channels. Distortion …
synchronization between emitter and receiver in digital communication channels. Distortion …
Digital baseband modeling and correction of radio frequency power amplifiers
P Landin - 2012 - diva-portal.org
Aspects related to behavioral modeling and correction of distortions for radio frequency (RF)
power amplifiers (PAs) are treated in the thesis. When evaluating the performance of a …
power amplifiers (PAs) are treated in the thesis. When evaluating the performance of a …
Peak-power controlled digital predistorters for RF power amplifiers
PN Landin, W Van Moer, M Isaksson… - IEEE transactions on …, 2012 - ieeexplore.ieee.org
This paper investigates the issue of “predistorter blow-up,” ie, uncontrolled peak expansion
caused by the predistorter. To control the peak expansion, an extension of the multistep …
caused by the predistorter. To control the peak expansion, an extension of the multistep …
Adaptive nonlinearity compensation technique for 4G wireless transmitters
M Cabarkapa, N Neskovic, A Neskovic… - Electronics …, 2012 - search.proquest.com
A new adaptive digital predistortion based on an iterative injections approach is
experimentally verified using a 4G signal. An error vector magnitude and spectrum regrowth …
experimentally verified using a 4G signal. An error vector magnitude and spectrum regrowth …
Modeling analog to digital converters at radio frequency
N Björsell - 2007 - diva-portal.org
This work considers behavior modeling of analog to digital converters with applications in
the radio frequency range, including the field of telecommunication as well as test and …
the radio frequency range, including the field of telecommunication as well as test and …