Results 11 to 20 of about 164 (124)
IET Science, Measurement & Technology, 2021 The noise is an inherent part of a transceiver system, which becomes more severe on low‐cost systems. The power amplifier (PA) further enhances this noise and the signal to be propagated to the receiver. The conventional approach of digital predistortion
Girish Chandra Tripathi, Meenakshi Rawat
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Neural Network-Assisted DPD of Wideband PA Nonlinearity for Sub-Nyquist Sampling Systems [PDF]
SensorsThe design of conventional digital predistortion (DPD) requires an analogue-to-digital converter (ADC) with a sampling frequency that is multiple times the signal bandwidth, which is extremely challenging for sub-Nyquist sampling systems with ...
Mengqiu Liu +6 more
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Hardware-Efficient Real-Valued Neural Predistorter for Multimode Power Amplifiers [PDF]
SensorsDigital predistortion (DPD) is essential for mitigating nonlinear distortion in radio-frequency (RF) power amplifiers (PAs), particularly in modern multimode transmitters.
Luiza Beana Chipansky Freire +2 more
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Concurrent Multi-Beam Digital Predistortion Using FFT Beamforming and Virtual Arrays [PDF]
SensorsA digital predistortion (DPD) scheme for concurrent multi-beam transmission in fully digital multiple-input, multiple-output (MIMO) systems, using Fast Fourier Transform (FFT) beamforming and so-called virtual-array processing, is proposed.
Björn Langborn +3 more
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Electronics (Switzerland), 2023 We demonstrate in this work effective linearization on a millimeter-wave (mm-Wave) broadband monolithic gallium nitride (GaN) power amplifier (PA) using digital predistortion (DPD). The PA used is a two-stage common-source (CS)/2-stack PA that operates in the mm-Wave 5G FR2 band, and it is linearized with the generalized memory polynomial (GMP) DPD and
Clint Sweeney +2 more
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Comparison of Feature Selection Techniques for Power Amplifier Behavioral Modeling and Digital Predistortion Linearization [PDF]
Sensors, 2021 The 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, where the device presents its
Abdoul Barry +3 more
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Upgrading Behavioral Models for the Design of Digital Predistorters [PDF]
Sensors, 2021 This work presents a strategy to upgrade models for power amplifier (PA) behavioral modeling and digital predistortion (DPD). These incomplete structures are the consequence of nonlinear order and memory depth model truncation with the purpose of ...
Carlos Crespo-Cadenas +2 more
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IEEE Microwave and Wireless Technology LettersDigital Pre-Distortion (DPD) enhances signal quality in wideband RF power amplifiers (PAs). As signal bandwidths expand in modern radio systems, DPD's energy consumption increasingly impacts overall system efficiency. Deep Neural Networks (DNNs) offer promising advancements in DPD, yet their high complexity hinders their practical deployment.
Yizhuo Wu +2 more
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Digital Predistortion (DPD) Algorithm For 5G Applications [PDF]
, 2021 Abstract The wireless networks of upcoming fifth generation (5G) promises connection speeds and data rates that are one hundred times faster than the existing networks and much improved signal and connection quality. As there is the development of wireless communication systems, the requirement of Power Amplifier’s linearity is hard.
S.G. SHIVAPRASAD YADAV, MEGHANA .
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Digital Predistortion in High Throughput Satellites: Architectures and Performance
IEEE Access, 2021 The future of satellites lies in the deployment of high throughput satellites (HTS). Moreover, HTS will also play an important role in the up coming 5G mobile networks where HTS will provide services like disaster relief, remote automation, maritime ...
Ovais Bin Usman, Andreas Knopp
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