Results 21 to 30 of about 854,467 (293)

Evaluation of OFDM Channel Sounding Techniques with Three Modulation Sequences

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications, 2019
This paper presents an evaluation of multicarrier channel sounding techniques using different random and pseudo-random sequences to modulate the OFDM sounding signal.
Marcelo Molina Silva   +6 more
doaj   +1 more source

Power line communication: A review on couplers and channel characterization

open access: yesAIMS Electronics and Electrical Engineering, 2022
Powerline communication is gaining momentum with the rise of the smart grid, the Internet of Things as part of the 4th industrial revolution and associated applications such as transportation and energy efficiency.
Martial Giraneza , Khaled Abo-Al-Ez
doaj   +1 more source

Characterization of multi-channel interference

open access: yes2008 6th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks and Workshops, 2008
Multi-channel communication protocols in wireless networks usually assume perfect orthogonality between wireless channels or consider only the use of interference-free channels. The first approach may overestimate the performance whereas the second approach may fail to utilize the spectrum efficiently.
Durmaz, O., Jansen, P.G.
openaire   +2 more sources

Terahertz wave propagation and channel characterization

open access: yesTongxin xuebao, 2022
Firstly, the different characteristics of terahertz waves compared to lower frequency bands were summarized, including the influence of meteorological factors and rough surfaces of materials on THz waves.Next, it was proposed to use ray-tracing (RT ...
Haofan YI   +5 more
doaj   +2 more sources

Accuracy of the Point-Source Model of a Multi-LED Array in High-Speed Visible Light Communication Channel Characterization

open access: yesIEEE Photonics Journal, 2015
During the indoor visible light communication (VLC) channel modeling procedure, the transmitter constituted by an array of light-emitting diodes (LED's) is frequently modeled as a single point source for convenience. However, how accurate this simplified
Jupeng Ding, Zhengyuan Xu, Lajos Hanzo
doaj   +1 more source

In-Tunnel Vehicular Radio Channel Characterization [PDF]

open access: yes2011 IEEE 73rd Vehicular Technology Conference (VTC Spring), 2011
Inside a tunnel, electromagnetic wave propagation differs strongly from the well understood "open-air" situation. The characterization of the tunnel environment is crucial for deploying vehicular communication systems. In this paper we evaluate vehicle-to-vehicle (V2V) radio channel measurements inside a tunnel.
Bernadó, Laura   +9 more
openaire   +2 more sources

Investigation of QoS Performance Evaluation over 5G Network for Indoor Environment at Millimeter Wave Bands [PDF]

open access: yesInternational Journal of Electronics and Telecommunications, 2019
One of the crucial advancements in next-generation 5G wireless networks is the use of high-frequency signals specifically those are in the millimeter wave (mm-wave) bands.
Faizan Qamar   +4 more
doaj   +1 more source

Characterization of Thermographic Covert Channel

open access: yesPomiary Automatyka Robotyka, 2023
The paper presents a method for determining the characteristics of the information capacity of a thermographic covert communication channel made of a heat radiator (technical black body) and a thermal camera. The determined characteristics are an additional parameter describing these devices in the context of their non-obvious use for data transmission.
Krzysztof Sawicki   +3 more
openaire   +1 more source

Unmanned Aerial Vehicle Propagation Channel over Vegetation and Lake Areas: First- and Second-Order Statistical Analysis

open access: yesSensors, 2021
The use of unmanned aerial vehicles (UAV) to provide services such as the Internet, goods delivery, and air taxis has become a reality in recent years.
Deyvid L. Leite   +4 more
doaj   +1 more source

THz Channel Sounding and Modeling Techniques: An Overview

open access: yesIEEE Access, 2023
As the world warms up to the idea of millimeter wave (mmWave) communication and fifth generation (5G) mobile networks, realization slowly dawns that the data rate, latency, throughput, and other performance metrics that are used to assess a new wireless ...
Anirban Ghosh, Minseok Kim
doaj   +1 more source

Home - About - Disclaimer - Privacy