Results 71 to 80 of about 2,155 (213)
, 2011 In this paper a new nonlinear digital baseband predistorter design is introduced based on direct learning, together with a new Wiener system modeling approach for the high power amplifiers (HPA) based on the B-spline neural network.
Xia Hong +7 more
core +1 more source
International Journal of RF and Microwave Computer-Aided Engineering, Volume 2026, Issue 1, 2026.This paper presents the design and implementation of a high‐efficiency two‐way Doherty power amplifier (DPA) for sub‐6 GHz 5G New Radio (NR) applications, specifically targeting the n78 band (3.3–3.8 GHz). The proposed gallium nitride (GaN)‐based DPA delivers a peak output power of 42.5 dBm, a gain of 13.3 dB, and a maximum power‐added efficiency (PAE)
Tugba Haykir Ergin +2 more
wiley +1 more source
EURASIP Journal on Advances in Signal Processing, 2007 Many modern communication signal formats, such as orthogonal frequency-division multiplexing (OFDM) and code-division multiple access (CDMA), have high peak-to-average power ratios (PARs).
Zhou G Tong, Qian Hua, Chen Ning
doaj +2 more sources
International Journal of Numerical Modelling: Electronic Networks, Devices and Fields, Volume 38, Issue 5, September/October 2025.ABSTRACT In this article, we provide a novel, expanded, and adapted pruning approach for the Simplified Volterra Series (SVS) model that makes it applicable to a wider range of Power Amplifiers (PAs). The proposed Modified SVS (MSVS) model is then applied in a Digital Predistortion (DPD) architecture to linearize a 25 W Gallium Nitride (GaN) RF PA.
Haithem Rezgui +3 more
wiley +1 more source
Tongxin xuebao, 2015 Based on the low-IF digital predistortion (DPD) architecture,a coordinate transformation based low-complex coefficients estimation algorithm is proposed to reduce the hardware implementation cost and numerical calculation complexity significantly.The ...
GHao HUAN +3 more
doaj +2 more sources
Performance Analysis of MIMO Links With Non‐Isolated Active Antenna Arrays
Microwave and Optical Technology Letters, Volume 67, Issue 8, August 2025.ABSTRACT In this paper, we analyze the performance of non‐isolated active arrays in a multiple‐input multiple‐output (MIMO) system. When ferromagnetic‐type isolators are removed in the transmitter (Tx) chains, the antenna mutual coupling will dynamically change the load impedance seen by the power amplifiers (PAs) at their outputs, which subsequently ...
Jiayu Hou +3 more
wiley +1 more source
EURASIP Journal on Advances in Signal Processing, 2010 Digital predistortion is an effective means to compensate for the nonlinear effects of a memoryless system. In case of a cellular transmitter, a digital baseband predistorter can mitigate the undesirable nonlinear effects along the signal chain ...
G. Tong Zhou +2 more
doaj +2 more sources
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
Binary Search‐Based Division (BSBD): A Technique for Efficient Division in Hardware
Journal of Electrical and Computer Engineering, Volume 2025, Issue 1, 2025.The division techniques play a key role in several computer‐implemented algorithms and applications; regrettably, they impose significant implementation constraints that hinder parallelization. The proposed binary search‐based division (BSBD) technique is inherited from the variable latency dividers, which have the potential to adjust the quotient bit ...
Mustafa Muhammed Hendawi +5 more
wiley +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