Results 41 to 50 of about 61,598 (216)

Compressive TDOA Estimation Method Based on Amplitude Phase Clustering in Time‐Frequency Domain

IET Signal Processing, Volume 2026, Issue 1, 2026.
In the field of signal processing, modulation signals, including phase shift keying (PSK) and quadrature amplitude modulation (QAM), can significantly enhance the signal‐to‐noise ratio (SNR) through aliasing transmission following clustering and sorting.
Yang Jiao, Changxiong Xia, Jingyu Zhai, Tianyi Xing, Qun Wan, Lyudmila Mihaylova   +5 more
wiley   +1 more source

Scene‐Driven Semantic Alignment for Generative Communication in Underwater Images

IET Signal Processing, Volume 2026, Issue 1, 2026.
Underwater images serve as one of the most intuitive media for human perception of underwater environments. However, the limited bandwidth and susceptibility to noise in underwater acoustic (UWA) channels pose significant challenges for traditional image encoding and transmission methods, thereby hindering high‐quality image reconstruction.
Yuetong Li, Zhenyu Jia, Yuyang Peng, Yi Zhu, Fei Yuan, Li Chai   +5 more
wiley   +1 more source

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

Implementasi skema pengacakan subcarrier OFDM dengan algoritma RSA pada NI-USRP

Jurnal Eltek, 2022
Keamanan jaringan nirkabel merupakan salah satu hal terpenting dalam sistem komunikasi. Karena sinyal dikirim dari pengirim melalui saluran nirkabel, tidak hanya penerima yang sah, tetapi juga penyadap dapat menangkap dan menyimpan sinyal informasi ...
Nihayatus Sa’adah, I Gede Puja Astawa, Amang Sudarsono   +2 more
doaj   +1 more source

Blocking Interference Mechanism in Networked Radios Under UWB HPM

IET Science, Measurement &Technology, Volume 20, Issue 1, January/December 2026.
This paper conducts a systematic cross‐level analysis of the damage mechanism encompassing ‘electromagnetic interference–hardware impairment–communication performance’ for QPSK‐based networked radios. Using ultra‐wide spectrum pulse signals as the interference source, the study considers the scenario where electromagnetic interference causes damage to ...
Jiale Zhou, Yijie Bai, Daojie Yu, Kaibai Chen, Jianping Du, Tao Li, Liyue Liang   +6 more
wiley   +1 more source

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

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

Pilot‐Based Iterative Path Estimation and Maximum Ratio Combining (MRC)–Based Signal Detection of Orthogonal Time–Frequency Space (OTFS) Modulation for 6G in Fractional Doppler Channels

Journal of Computer Networks and Communications, Volume 2026, Issue 1, 2026.
The sixth generation (6G) wireless networks are used to provide a large coverage, and also this generation needed to support different emerging applications in harsh areas with higher user equipment mobility. For the above case, a new modulation technique called orthogonal time–frequency space (OTFS) modulation has emerged as a promising technique to ...
Ephrem Gelamite Demere, Zelalem Hailu Gebeyehu, Sohini Basu Roy   +2 more
wiley   +1 more source

Nonlinear Distortion Equalization in Multi‐Span Optical Links Via a Feed‐Forward Photonic Neural Network

Laser &Photonics Reviews, Volume 19, Issue 23, December 3, 2025.
A feed‐forward photonic neural network equalizes linear and nonlinear impairments in multi‐span IMDD optical fiber transmission. The linear processing stage employs an 8‐tap optical Finite Impulse Response filter integrated on a silicon photonics platform, while the end‐of‐line photodetector represents the nonlinear stage.
Emiliano Staffoli, Elisabetta Ferri, Stefano Gretter, Lorenzo Pavesi   +3 more
wiley   +1 more source

OFDM Signal Research with Varied Subcarriers Number

Transport and Telecommunication, 2016
The orthogonal frequency division multiplexing (OFDM) aggregate signal energy characteristics are studied based on the OFDM signal simulation model. The information reliability of OFDM signal is explored for different sets of OFDM subcarrier numbers and ...
Uryvsky Leonid, Osypchuk Serhii
doaj   +1 more source