Results 161 to 170 of about 3,039,671 (230)

Numerov-Padé Scheme for the One-Way Helmholtz Equation in Tropospheric Radio-Wave Propagation

IEEE Antennas and Wireless Propagation Letters, 2020
This letter is devoted to applying the higher order finite-difference approximations to the tropospheric radio-wave propagation problem. It is proposed to use the fourth-order approximation (Numerov discretization) of the transverse differential operator,
M. Lytaev
semanticscholar   +1 more source

A Radio Wave Propagation Modeling Method Based on High-Precision 3-D Mapping in Urban Scenarios

IEEE Transactions on Antennas and Propagation
Knowledge of the radio channel in urban environments is of key importance in many critical applications, such as wireless communication and autonomous driving.
Fubing Zhang, Chen Zhou, Conor Brennan, Rui Wang, Yufeng Li, Guo Xia, Zhen Zhao, Yin Xiao   +7 more
semanticscholar   +1 more source

Comparative Study of VPE-Driven CNN Models for Radio Wave Propagation Modeling in Tunnels

IEEE Transactions on Antennas and Propagation
Radio wave propagation modeling in railway environments is of fundamental importance in designing reliable train communication systems. In recent years, many machine learning (ML) techniques have been applied to accelerate the modeling process.
Si-Yi Huang, Shiqi Wang, Xin-Yue Zhang, Xing-Qi Zhang   +3 more
semanticscholar   +1 more source

Propagation of Radio Waves in Wine Cellars

2023 30th International Conference on Systems, Signals and Image Processing (IWSSIP), 2023
Monitoring, control and management of wine production using sensors, IoT and machine learning methods is becoming more and more common. Wireless connection of sensors requires knowledge of losses due to electromagnetic (EM) wave propagation, and wine cellars represent a specific environment due to their architecture and wine vessels that hinder wave ...
Snjezana Rimac-Drlje, Slavko Rupcic, Tomislav Keser, Ivan Aleksi, Ivana Kovacevic, Robert Miling, Vanja Mandric   +6 more
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Radio Wave Propagation in Vehicular Environments

, 2020
Providing a unified treatment of radio wave propagation in vehicular environments, this book offers a thorough discussion of their theoretical background and fundamental limits, and paves the way to a better understanding of more advanced topics. Further,
L. Azpilicueta, C. Vargas-Rosales, F. Falcone, A. Vazquez-Alejos   +3 more
semanticscholar   +1 more source

Advanced Radio Wave Propagation Models for Next Generation Wireless Networks Using AIML

2026 5th International Conference on Sentiment Analysis and Deep Learning (ICSADL)
Exact radio wave propagation modeling is an essential need of designing and optimising the fifth-generation (5 G) and beyond wireless networks in the challenging urban, indoor and high-frequency deployment cases. Although classical propagation models are
Ganapathy Ram, Divya Vegesna, Subbaraju Pericherla, Tejaswini Kothapalli, Lakshmi Hyma Rudraraju, M. Srikanth   +5 more
semanticscholar   +1 more source

An Efficient 3-D FDTD-PE Hybrid Model for Radio Wave Propagation With Near-Source Obstacles

IEEE Transactions on Antennas and Propagation, 2019
A novel 3-D hybrid model is presented for the prediction of propagation of radio waves in the presence of complex obstacles located on regular perfectly conducting terrain.
Zeina El Ahdab, F. Akleman
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Radio Wave Propagation

AIP Conference Proceedings, 2007
Electromagnetic radio waves traveling within earth’s atmosphere are called terrestrial waves, and communications between two or more points on earth is called terrestrial radio communications. Terrestrial waves are influenced by the atmosphere and earth itself.
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Fast Radio-Wave Propagation Modeling in Tunnels With a Hybrid Vector Parabolic Equation/Waveguide Mode Theory Method

IEEE Transactions on Antennas and Propagation, 2018
Radio-wave propagation modeling in tunnels plays an important role in designing reliable train communication systems. In recent years, various channel modeling techniques have been presented, each with its own advantages and limitations.
Xing-Qi Zhang, Neeraj Sood, Costas D. Sarris   +2 more
semanticscholar   +1 more source

Radio waves and propagation

2003
This chapter discusses properties of radio waves and their propagation. Radio waves are a form of radiation known as electromagnetic waves. The properties of radio waves and the way in which they travel or propagate are of prime importance in the study of radio technology.
openaire   +1 more source