Results 51 to 60 of about 49,826 (236)

Performance Investigation of Peak Shrinking and Interpolating the PAPR Reduction Technique for LTE-Advance and 5G Signals

Information, 2019
Orthogonal frequency division multiplexing (OFDM) has become an indispensable part of waveform generation in wideband digital communication since its first appearance in digital audio broadcasting (DAB) in Europe in 1980s, and it is indeed in use. As has
Somayeh Mohammady, Ronan Farrell, David Malone, John Dooley   +3 more
doaj   +1 more source

Analisis Inverse Pulse Position Modulation OFDM pada Komunikasi Ultra Wideband

Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems), 2022
Peningkatkan keandalan sistem multiband orthogonal frequency division multiplexing (MB-OFDM) ultra-wideband (UWB) dengan memanfaatkan waktu bersama dan demodulasi domain frekuensi diharapkan dapat meningkatkan kinerja.
Lucky Nindya Palupi, Totok Winarno
doaj   +1 more source

Acceleration‐Aware Estimation and Compensation of Doppler Scale for Mobile UWA OFDM Systems

IET Communications, Volume 20, Issue 1, January/December 2026.
We propose a novel method to estimate and compensate for the Doppler scale caused by acceleration in orthogonal frequency division multiplexing (OFDM)‐based underwater acoustic (UWA) systems. Simulation results under additive white Gaussian noise (AWGN), synthetic multipath and realistic waymark channel conditions demonstrate that the proposed approach
Yong‐Ho Cho, Seung‐Geun Kim
wiley   +1 more source

Deep Learning-Aided OFDM Demodulation Scheme for Undersea RF Short-Range Communication [PDF]

Radioengineering
The realization of undersea wireless communication using radio frequency (RF) signals is hindered by severe attenuation and signal distortion, particularly due to complex propagation mechanisms and limitations of RF hardware.
I. Pasya, M. S. A. Megat Ali, A. A. Jamal   +2 more
doaj  

Performance Analysis of Framelet Based OFDM System Under Different Channel Conditions [PDF]

Engineering and Technology Journal, 2012
In this paper, the Framelet Transform (FT) is proposed as a new modulation technique in the realization of Orthogonal Frequency Division Multiplexing (OFDM).
Atheer A. Sabri, Ziad Q. Abdulkareem
doaj   +1 more source

Multiuser MIMO-OFDM for Next-Generation Wireless Systems

, 2007
This overview portrays the 40-year evolution of orthogonal frequency division multiplexing (OFDM) research. The amelioration of powerful multicarrier OFDM arrangements with multiple-input multiple-output (MIMO) systems has numerous benefits, which are ...
Jiang, M, Ming Jiang, Hanzo, L, Lajos Hanzo   +3 more
core   +1 more source

Hybrid STA With FNN and CNN Models for Robust Channel Estimation in Turbulent FSO and Doppler‐Affected OFDM transmission for LEO Satellite Communication

IET Communications, Volume 20, Issue 1, January/December 2026.
A hybrid framework of deep learning‐based channel estimation for robust communication in free space optical (FSO)‐based low earth orbit (LEO) satellite system using advanced modulation formats for orthogonal frequency division multiplexing (OFDM) transmission. Simulations demonstrate that STA‐ SRCNN and STA‐DNCNN excel in terrestrial FSO channels (NMSE
Saad Rustum, Usman Habib, Salman Ahmed, Muhammad Ahmad, Muhammad Ijaz   +4 more
wiley   +1 more source

Optical distribution of OFDM and impulse-radio UWB in FTTH networks

, 2008
Proposal, experimental demonstration and performance comparison of impulse-radio UWB and OFDM UWB distribution in FTTH networks for high-definition audio/video broadcasting is presented.
Marti, Javier, Morant, Maria, J. Marti, Beltran, Marta, T. Alves, M. Beltran, J. Perez, Alves, Tiago, Llorente, Roberto, R. Llorente, Perez Soler, Joaquin, A. Cartaxo, Cartaxo, Adolfo, M. Morant   +13 more
core   +1 more source

Closed‐Form Approximation of Average Error Probability With Finite‐Blocklength Coding Over Lognormal Wireless Communication Links

IET Communications, Volume 20, Issue 1, January/December 2026.
This work extends the Polyanskiy‐Poor‐Verdu (PPV) framework to lognormal wireless links. Specifically, the paper derives a closed‐form approximation for the average error probability under lognormal distribution, effectively generalizing the PPV analysis beyond the additive white Gaussian noise assumption.
Peng Du, Yuan Zhang
wiley   +1 more source

Transformer‐Enhanced Multi‐Satellite IRS Coordination for Next‐Generation LEO Communications

IET Communications, Volume 20, Issue 1, January/December 2026.
This paper introduces a novel transformer‐enhanced framework for multi‐satellite intelligent refelecting surfaces (IRS) coordination that addresses these fundamental limitations through physics‐informed neural architectures incorporating orbital dynamics modelling, multi‐head self‐attention mechanisms for temporal dependency capture across rapidly ...
Ali Hussein Radhi, Mahmood Mohassel Feghhi, Mohammad Ali Balafar   +2 more
wiley   +1 more source