Results 21 to 30 of about 251,819 (258)
Energies, 2023 The signal power in wireless communication systems is influenced by various factors, including the environment. These factors include path differences, operational frequency, and environmental conditions.
Chilakala Sudhamani +5 more
doaj +1 more source
Path Loss Modelling for High Speed Rail in 5G Communication System
International Journal of Technology, 2022 A new path loss model for high-speed rail (HSR) in the 5G communication system is constructed in this paper. The model is identified to obtain an accurate mathematical representation of path loss multipath propagation in line of sight of HSR ...
Selvi Lukman +3 more
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60 GHz Path Loss Modelling Inside Ships [PDF]
2020 14th European Conference on Antennas and Propagation (EuCAP), 2020 This paper presents the results of a mmWave channel sounding campaign in a bulk carrier vessel. Using the Terragraph channel sounder, we measured path loss at 60.48 GHz for different separations between the transmit and receiving nodes in the engine room and steering control room of the vessel.
De Beelde, Brecht +5 more
openaire +2 more sources
Path Loss Model Based on Machine Learning Using Multi-Dimensional Gaussian Process Regression
IEEE Access, 2022 For beyond fifth-generation (5G) and future wireless communications, spatial consistency that represents the correlation between propagation channel characteristics in close proximity has become one of the major issues in channel modeling to describe ...
Ki Joung Jang +6 more
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Modeling the wireless in vivo path loss [PDF]
2014 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-Bio2014), 2014 Our long-term research goal is to model the in vivo wireless channel. As a first step towards this goal, in this paper we performed in vivo path loss measurements at 2.4 GHz and make a comparison with free space path loss. We calculate the path loss by using the electric field radiated by a Hertzian-Dipole located inside the abdominal cavity.
Yang Liu +3 more
openaire +1 more source
Sensors, 2017 The Global Positioning System demonstrates the significance of Location Based Services but it cannot be used indoors due to the lack of line of sight between satellites and receivers. Indoor Positioning Systems are needed to provide indoor Location Based
Iyad Husni Alshami +3 more
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Measurement-Based Characterization and Modeling for Low-Altitude UAV Air-to-Air Channels
IEEE Access, 2019 In this paper, we characterize the unmanned aerial vehicle (UAV) air-to-air (A2A) channel for an 802.11-based low altitude network based on a preliminary measuring result over user datagram protocol (UDP) throughput, latency, received signal strength ...
Tianyu Liu +6 more
doaj +1 more source
Applied Sciences, 2022 Modern cellular communication networks are already being perturbed by large and steadily increasing mobile subscribers in high demand for better service quality.
Joseph Isabona +6 more
doaj +1 more source
Resource Optimization in Multi-Tier HetNets Exploiting Multi-Slope Path Loss Model
IEEE Access, 2017 Current resource allocation techniques in cellular networks are largely based on single-slope path loss model, which falls short in accurately capturing the effect of physical environment.
Hamnah Munir +4 more
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Applied Sciences, 2022 One of the most critical problems in a communication system is losing information between the transmitter and the receiver. WiMAX (Worldwide Interoperability of Microwave Access) technology is gaining popularity and recognition as a Broadband Wireless ...
Moamen Alnatoor +2 more
doaj +1 more source