Results 31 to 40 of about 4,829 (219)

Reducing PAPR of OFDM signals using a tone reservation method based on $$\ell_{\infty }$$ ℓ ∞ -norm minimization

Journal of Electrical Systems and Information Technology, 2022
Orthogonal frequency division multiplexing (OFDM) continues to be the most preferred signal-multiplexing scheme for high-speed data communication. However, OFDM signals are known to have the problem of high peak-to-average power ratio (PAPR), especially ...
Stephen Kiambi, Elijah Mwangi, George Kamucha   +2 more
doaj   +1 more source

Firm‐Size Heterogeneity in the Effects of ESG Disclosure on Firm Value Under Institutional Reform: Evidence From Japan

Business Strategy and the Environment, EarlyView.
ABSTRACT Focusing on firm‐size heterogeneity, this study examines how institutional reform reshapes the effects of environmental, social, and governance (ESG) disclosure on firm value. Using 2019–2023 panel data on 1427 Japanese listed firms (before and after the 2022 Tokyo Stock Exchange reorganization and Corporate Governance Code revision), this ...
Akio Nakashima, Kimitaka Nishitani
wiley   +1 more source

An Improved GreenOFDM Scheme for PAPR Reduction

, 2020
International audienceThis paper proposes an improvement to a recent Peak-to-Average-Power-Ratio (PAPR) reduction technique for Orthogonal Frequency Division Multiplexing (OFDM), the GreenOFDM. This technique, which is inspired by SeLected Mapping (SLM),
Ros, Laurent, Denis Mestdagh, Jean-Marc Brossier, Brossier, Jean-Marc, Gulfo Monsalve, Jorge Luis, Laurent Ros, Mestdagh, Denis, Jorge Luis Gulfo Monsalve   +7 more
core   +1 more source

Novel PAPR Reduction Algorithms for OFDM Signals

IEEE Access, 2022
This paper proposes two efficient peak-to-average power ratio (PAPR) reduction algorithms for OFDM signals based on the principle of tone reservation. The first algorithm is performed in the time domain, whereas the second algorithm is a new clipping-and-filtering method. Both algorithms consist of two stages.
Quang Nguyen, The Khai Nguyen, Ha H. Nguyen 0001, Brian Berscheid   +3 more
openaire   +2 more sources

Research on Low-complexity PAPR Reduction Algorithm in Radar-communication Integrated System [PDF]

Jisuanji gongcheng, 2016
This paper proposes a low-complexity Peak to Average Power Ratio(PAPR) reduction algorithm to deal with the high PAPR of radar-communication integrated system of Orthogonal Frequency Division Multiplexing(OFDM) based on Fractional Fourier Transform(FRFT).
CHEN Kangrun,LIU Yang,ZHANG Wei
doaj   +1 more source

Thermal Transformations of Platinum‐Heterobimetallic Iminodiacetate Dithiocarbamates Comprising Group 2 and Group 12 Metal Ions

Zeitschrift für anorganische und allgemeine Chemie, EarlyView.
The heterobimetallic amino‐acid dithiocarbamates [M(H2O)n]2[Pt(L)2] (M = Ca, Sr, Ba, Zn, Cd; L = N‐dithioato‐iminodiacetate) are thermally dehydrated to their respective anhydrates M2[Pt(L)2], which further yield metal sulfate or oxide particles decorated with finely distributed metallic platinum upon combustion in air. The thermal decomposition of the
Sebastian Mangelsen, Jonas Jacobs, Aroua Aouina, Antje Wermann, Verena Müller, Benjamin Kintzel, Phil Köhler   +6 more
wiley   +1 more source

A novel generalized oppositional biogeography-based optimization algorithm: application to peak to average power ratio reduction in OFDM systems

Open Mathematics, 2016
A major drawback of orthogonal frequency division multiplexing (OFDM) signals is the high value of peak to average power ratio (PAPR). Partial transmit sequences (PTS) is a popular PAPR reduction method with good PAPR reduction performance, but its ...
Goudos Sotirios K.
doaj   +1 more source

Synergistic Enhancement of Modified‐PVDF Humidity Sensitivity via Chemical Adsorption‐Ionic Conductivity and its Application in Intelligent Powered Air‐Purifying Respirator

ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 3, May 2026.
The study developed a PVDF/SiO2 humidity sensor with superhydrophobic properties and integrated the humidity sensor into the intelligent powered air‐purifying respirator (IPAPR) for breath monitoring. Coupled with the Gated Recurrent Unit (GRU) machine learning prediction algorithm, it enables feedforward control of the fan to achieve respiratory ...
Xinjian He, Hongwei Liu, Xianjie Xu, Xinkai Qi, Danhong Gao, Hanling Deng, Dusong Hou, Qianyao Lu, Lei Zhu, Sheng Huang   +9 more
wiley   +1 more source

PAPR-Aware Massive MIMO-OFDM Downlink

IEEE Access, 2019
We investigate the peak-to-average power ratio (PAPR) reduction problem in orthogonal frequency-division multiplexing-based massive multi-user (MU) multiple-input multiple-output (MIMO) downlink systems.
Rafik Zayani, Hmaied Shaiek, Daniel Roviras   +2 more
doaj   +1 more source

A Highly Efficient Two‐Sided Temporal Convolutional Neural Network for Wideband Digital Predistortion of RF Power Amplifiers

International Journal of Numerical Modelling: Electronic Networks, Devices and Fields, Volume 39, Issue 3, May/June 2026.
ABSTRACT Behavioral models for Power Amplifier (PAs), particularly those based on Neural Networks (NNs), often suffer from high computational complexity when handling wideband signals. In this paper, we present a novel behavior model for wideband GaN PAs based on a Two‐Sided Temporal Convolutional Neural Network (TST‐CNN).
Haithem Rezgui, Rim Barrak, Amine Ben Salem, Adel Ghazel   +3 more
wiley   +1 more source