Results 31 to 40 of about 5,147 (108)

Bidirectional Deep Learning Decoder for Polar Codes in Flat Fading Channels

IEEE Access
One of the main issues facing in the future wireless communications is ultra-reliable and low-latency communication. Polar codes are well-suited for such applications, and recent advancements in deep learning have shown promising results in enhancing ...
Md Abdul Aziz, Md Habibur Rahman, Mohammad Abrar Shakil Sejan, Rana Tabassum, Duck-Dong Hwang, Hyoung-Kyu Song   +5 more
doaj   +1 more source

Design and meshing characteristics of curvilinear cylindrical gears with asymmetric teeth

Scientific Reports
Current research on curvilinear cylindrical gears primarily focuses on symmetric teeth, with little attention given to curvilinear cylindrical gears with asymmetric teeth. To investigate the impact of asymmetric tooth design on the meshing performance of
Xuegang Zhang
doaj   +1 more source

Covert Communication System Based on Walsh Modulation and Noise Carriers [PDF]

Radioengineering
This study proposes a covert communication system, in which a non-zero-mean normally distributed random process is used as a carrier, and its mean is modulated by a Walsh code carrying M covert bits.
Z.-J. Xu, S. Zhang, Z.-W. Liu, J.-L. Lin, X.-S. Huang, J.-Y. Hua   +5 more
doaj  

Polynomial Regression-Based Channel Interpolation and Structure-Aware Pilot Design for RoF–OFDM FSO Systems

Photonics
Radio-over-Fiber (RoF) integrated with Free-Space Optical (FSO) communication as a fronthaul is a promising solution for next-generation wireless systems, but severely suffers from the frequency-selective characteristics of hybrid RoF-FSO channels.
Saad Rustum, Usman Habib, Muhammad Irfan, Muhammad Avais Qureshi, Muhammad Ijaz, Jayaprasath Elumalai   +5 more
doaj   +1 more source

Design and Laboratory Validation of a Low-Cost Vision-Based Strain Monitoring System Using ESP32-CAM with Centralized Processing

Buildings
Vision-based structural health monitoring offers a promising alternative to conventional wired sensing systems; however, its adoption is often limited by high hardware costs and computational constraints at sensing nodes.
Asare Kwaku Anim, Weijie Li, Xuefeng Zhao, Jun Ma, Ronghuan Liu, Dong Sun   +5 more
doaj   +1 more source

Distributed GRS‐coded differential spatial modulation for half‐duplex cooperative network based on relay optimization and joint decoding

IET Communications
To ensure the reliable transmission with increased spectral efficiency of the small information block, this article proposes the novel distributed generalized Reed‐Solomon coded differential spatial modulation (DGRSC‐DSM) scheme in the relay cooperation ...
Chen Chen, Fengfan Yang
doaj   +1 more source

Development of a user friendly interface software for design and analysis of paralel axes external gears including quasi-static transmission error calculations

, 2020
Gears are one of the most important power transmission elements required to transmit both torque and motion between shafts. The design or analyze of these very crucial elements of power transmission systems require too much time because of huge numbers of the parameters affect the gear static and dynamic performance.
openaire   +1 more source

Constitutive Model of Bolted Connections and Modeling Method of Bolt Connected Precast Concrete Wall Panel Structure

工程科学与技术
Objective The bolt-connected precast concrete wall panel structural system provides multiple advantages, including speedy construction, convenient installation, trustworthy connections, disassembly, and repairability, which make it particularly suitable ...
Feng XIONG, Chaoan WU, Mingming RAN, Yachao ZHONG, Yuhao WANG   +4 more
doaj  

A Fatigue-Damage-Based Failure-Triggering Method for Shock Absorbers and Its Influence on the Seismic Response of Railway Bridges

工程科学与技术
Objective Metallic shock absorbers are widely used in railway bridge isolation systems to dissipate seismic energy through repeated plastic deformation.
LIU Haitao, ZHANG Yongliang, LI Zite, LIU Tianci   +3 more
doaj  

A hybrid transformer-zero-shot learning framework with Muon optimization for intelligent channel estimation in MIMO wireless systems. [PDF]

Sci Rep
Salama WM, Aly MH, Alshathri S, El-Shafai W.   +3 more
europepmc   +1 more source