Results 81 to 90 of about 1,347 (153)

EVM and Achievable Data Rate Analysis of Clipped OFDM Signals in Visible Light Communication [PDF]

, 2012
Orthogonal frequency division multiplexing (OFDM) has been considered for visible light communication (VLC) thanks to its ability to boost data rates as well as its robustness against frequency-selective fading channels.
D O’Brien, F Peng, Guo Tong Zhou, H Elgala, H Elgala, H Elgala, H Kuhn, H Ochiai, H Ochiai, J Armstrong, J Armstrong, J Armstrong, J Bussgang, J Carruthers, J Kahn, J Tellado, M Abramowitz, M Grant, M Hanson, N Fernando, O Gonzalez, P Banelli, R Mesleh, Robert J Baxley, S Hranilovic, S Wilson, T Komine, T Komine, W Davenport, X Li, Zhenhua Yu   +30 more
core   +2 more sources

Dynamic Power Splitting in a Hybrid Common-Emitter/Common-Base Doherty Amplifier for High Average Efficiency Above 100 GHz Using an InP HBT Process

IEEE Journal of Microwaves
A Doherty power amplifier is introduced that uses a hybrid combination of common-emitter (CE) and common-base (CB) devices for operation above 100 GHz. The use of CE and CB devices demonstrates dynamic input power splitting between a main and auxiliary ...
Eythan Lam, James F. Buckwalter
doaj   +1 more source

Design and analysis of 80-W wideband asymmetrical Doherty amplifier [PDF]

, 2014
Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence
Bathich, Khaled, Böck, Georg
core   +1 more source

Memory polynomial with binomial reduction in digital pre-distortion for wireless communication systems [PDF]

, 2017
One of the biggest power consuming devices in wireless communications system is the Power Amplifier (PA) which amplifies signals non-linearly when operating in real-world systems.
Abdul Latiff, Nurul Adilah, Choo, Hong Ning, Mohd Ali, Borhanuddin, Varahram, Pooria   +3 more
core  

Full-Wave Digital Predistortion Linearization Based on Memory Polynomials for HF Power Amplifiers

IEEE Access
In order to suppress the intermodulation distortion and harmonic distortion caused by the nonlinearity of a HF power amplifier (PA), this paper presents a nonlinear correction method for full wave digital predistortion (DPD) of a HF PA based on a memory ...
Junshi Lv, Gaoming Xu, Chengting Zhang, Haili Zhang, Taijun Liu   +4 more
doaj   +1 more source

GPU-Based Implementation of Pruned Artificial Neural Networks for Digital Predistortion Linearization of Wideband Power Amplifiers

IEEE Journal of Microwaves
This paper presents a feature selection technique based on $\ell _{1}$ regularization to select the most relevant weights of artificial neural networks (ANNs) for digital predistortion (DPD) linearization of wideband radio-frequency (RF) power amplifiers
Wantao Li, Raul Criado, William Thompson, Gabriel Montoro, Kevin Chuang, Pere L. Gilabert   +5 more
doaj   +1 more source

A 0.6–0.8 GHz CMOS Frequency-Tunable Nonmagnetic Circulator With Digital Predistortion-Based Linearity Enhancement for in-Band Full-Duplex Radios

IEEE Access
In this article, a 0.6–0.8 GHz CMOS frequency-tunable nonmagnetic circulator employing a hybrid-capacitor-based C–L–C transmission line and digital-predistortion (DPD)-assisted linearization is presented for advanced in-band full ...
Donggu Lee, Chanhee Cho, Taekyu Kim, Seungyeon Kim, Sukju Yun, Seungyoung Park, In-Chul Hwang, Kabseok Ko, Kuduck Kwon   +8 more
doaj   +1 more source

Digital Predistorter Design Using a Reduced Volterra Model to Linearize GaN RF Power Amplifiers [PDF]

Radioengineering, 2018
In this paper, a novel method for reducing a Simplified Volterra Series (SVS) model size is proposed for GaN RF Power Amplifier (PA) Digital Predistorter (DPD) design.
H. Rezgui, F. Rouissi, A. Ghazel
doaj  

Digital Predistortion Based Experimental Evaluation of Optimized Recurrent Neural Network for 5G Analog Radio Over Fiber Links

IEEE Access
In the context of Enhanced Remote Area Communications (ERAC), Radio over Fiber (RoF) technology plays a crucial role in extending reliable connectivity to underserved and remote areas. This paper explores the significance of fifth-generation (5G) Digital
Muhammad Usman Hadi, Kamaluddeen Usman Danyaro, Alawi AlQushaibi, Rizwan Qureshi, Tanvir Alam   +4 more
doaj   +1 more source

A Crest Factor Reduction Technique for LTE Signals with Target Relaxation in Power Amplifier Linearization. [PDF]

Sensors (Basel), 2022
Cárdenas-Valdez JR, Galaviz-Aguilar JA, Vargas-Rosales C, Inzunza-González E, Flores-Hernández L.   +4 more
europepmc   +1 more source