Results 31 to 40 of about 1,347 (153)
Applied Sciences, 2021 This paper presents an experimental realization of multiband 5G new radio (NR) optical front haul (OFH) based radio over fiber (RoF) system using digital predistortion (DPD).
Muhammad Usman Hadi +4 more
doaj +1 more source
Digital Predistortion for MIMO Transmitters Using Multi-Channel Error Feedback Adaptation
IEEE Access, 2020 Digital predistortion (DPD) is known as an efficient solution to suppress nonlinear distortion of power amplifiers (PAs) in wireless transmitters to achieve both high linearity and power efficiency.
Ying Liu +5 more
doaj +1 more source
Practically Feasible Closed-Loop Digital Predistortion for VCSEL-MMF-Based Radio-over-Fiber Links [PDF]
Radioengineering, 2020 The article demonstrates a novel Digital Predistortion (DPD) architecture for Mobile Front Haul links for the advanced Long-Term Evolution (LTE) and upcoming 5G networks.
M. U. Hadi +5 more
doaj
On-line memory polynomial predistortion based on the adapted kalman filtering algorithm [PDF]
, 2008 International audienceA new adaptive technique for digital predistortion is presented. The proposed method uses the real-time digital processing of baseband signals to compensate the nonlinearities and memory effects in radio-frequency power amplifier ...
Bachir, Smail +2 more
core +3 more sources
Heuristic Model Structure Optimization for Digital Predistortion
IEEE Access, 2021 Power amplifiers (PAs) are widely used in RF broadcasting applications. However, they exhibit nonlinear behavior and deteriorate the quality of transmitted signals.
Wen Qiao +5 more
doaj +1 more source
Independent digital predistortion parameters estimation using adaptive principal component analysis [PDF]
, 2018 ©2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new ...
Gilabert Pinal, Pere Lluís +3 more
core +2 more sources
A Digital Predistortion Scheme Exploiting Degrees-of-Freedom for Massive MIMO Systems
, 2018 The primary source of nonlinear distortion in wireless transmitters is the power amplifier (PA). Conventional digital predistortion (DPD) schemes use high-order polynomials to accurately approximate and compensate for the nonlinearity of the PA.
Marojevic, Vuk +4 more
core +1 more source
TCN-DPD: Parameter-Efficient Temporal Convolutional Networks for Wideband Digital Predistortion
2025 IEEE/MTT-S International Microwave Symposium - IMS 2025Digital predistortion (DPD) is essential for mitigating nonlinearity in RF power amplifiers, particularly for wideband applications. This paper presents TCN-DPD, a parameter-efficient architecture based on temporal convolutional networks, integrating noncausal dilated convolutions with optimized activation functions.
Duan, Huanqiang +4 more
openaire +2 more sources
, 2016 Noncontiguous transmission schemes combined with high power-efficiency requirements pose big challenges for radio transmitter and power amplifier (PA) design and implementation.
Abdelaziz, Mahmoud +5 more
core +1 more source
Linearization of dual-input Doherty power amplifiers [PDF]
, 2014 This paper studies the linearity of dual-input Doherty power amplifiers. We propose a linearization scheme that uses a combination of an efficiency-optimized static splitter and a vector-switched digital predistorter.
Cahuana, Jessica Chani +4 more
core +1 more source