Results 41 to 50 of about 300 (138)
A CNN‐BiLSTM–Based Deep Learning Model for CPM Signal Detection
Electronics Letters, Volume 61, Issue 1, January/December 2025.This paper proposes a novel convolutional neural network–bidirectional long short‐term memory (CNN‐BiLSTM) architecture for continuous phase modulation (CPM) signal detection, effectively addressing the challenges of computational complexity and memory inherent in CPM signals.
Yang He, Ning Cao, Can Hu, Hao Lu
wiley +1 more source
Design and Reception Method of Code Shift Keying Signals With Power‐of‐Two Phase Intervals
IET Radar, Sonar &Navigation, Volume 19, Issue 1, January/December 2025.A novel approach for the design and reception of CSK signals with a phase interval mapping of power‐of‐two chips is proposed. This method is capable of significantly reducing the demodulation complexity while mitigating the intersymbol interference. ABSTRACT Precise point positioning (PPP) technology has garnered extensive attention for its ability to ...
Nengjie Yu +4 more
wiley +1 more source
Interference Mitigation in Cooperative SFBC-OFDM
EURASIP Journal on Advances in Signal Processing, 2008 We consider cooperative space-frequency block-coded OFDM (SFBC-OFDM) networks with amplify-and-forward (AF) and decode-and-forward (DF) protocols at the relays. In cooperative SFBC-OFDM networks that employ DF protocol, (i), intersymbol interference (ISI)
A. Chockalingam, D. Sreedhar
doaj +1 more source
A Flexible Constrained ICA Approach for Multisubject fMRI Analysis
International Journal of Biomedical Imaging, Volume 2025, Issue 1, 2025.Large‐scale analysis of functional connectivity within intrinsic brain networks using functional magnetic resonance imaging (fMRI) data has been widely used for identifying biomarkers in various psychiatric disorders. While the emerging access to large neuroimaging datasets provides unprecedented opportunities for exploring brain functions, they also ...
Hanlu Yang +5 more
wiley +1 more source
Performance Enhancement of OFDM‐Based Hybrid Multiplexed Ro‐FSO System Under Complex Rain Conditions
International Journal of Optics, Volume 2025, Issue 1, 2025.The radio over free‐space optical (Ro‐FSO) link serves as an effective and resilient solution for distributing radio frequency (RF) signals over turbulent and adverse weather conditions, using high‐frequency optical carriers. This work proposes an architecture for a high‐speed, spectral‐efficient, and long‐reach hybrid multiplexed Ro‐FSO system that ...
Shivaji Sinha +4 more
wiley +1 more source
3D Geometry Modeling Method for MIMO Communication Systems Using Correlation Coefficients
Journal of Computer Networks and Communications, Volume 2025, Issue 1, 2025.Channel models are the basis of system design, theoretical analysis, performance evaluation, optimization, and deployment of communication systems in wireless fading environments. LTE, a global standard for high‐speed data transmission, relies on channel modeling techniques due to its multiple‐input multiple‐output (MIMO) architecture. In MIMO systems,
Hassan Abdollahpour +3 more
wiley +1 more source
Journal of Electrical and Computer Engineering, Volume 2025, Issue 1, 2025.Orthogonal frequency division multiplexing (OFDM) is a widely used modern communications technology due to its resistance to selective frequency fading and efficient use of spectrum. However, the security of OFDM signals remains a source of serious concern, especially in the face of network encryption that aims to disrupt communications or extract ...
Ammar Mohammedali Fadhil +2 more
wiley +1 more source
Canceling Interferences for High Data Rate Time Reversal MIMO UWB System: A Precoding Approach
EURASIP Journal on Wireless Communications and Networking, 2011 An ultra-high data rate time reversal (TR) multiple-input multiple-output (MIMO) ultra-wideband (UWB) communication system with space-time precoding is proposed.
Wang Taotao, Lv Tiejun
doaj
Sensors, 2012 Underwater communication channels are often complicated, and in particular multipath propagation may cause intersymbol interference (ISI). This paper addresses how to remove ISI, and evaluates the performance of three different receiver structures and ...
Hefeng Dong +2 more
doaj +1 more source