Results 11 to 20 of about 854,677 (295)

Characterization of multi-channel interference [PDF]

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.
Durmaz Incel, Ozlem, Jansen, Pierre
core   +4 more sources

On the characterization of multi-channel applications [PDF]

open access: yesProceedings of the 5th international student workshop on Emerging networking experiments and technologies, 2009
We are assisting to the evolution of new generation applications and services, progressively providing - through a single interface - more interactions among the users and between the users and the network. This is promoting the development of multi-channel applications (e.g.
PESCAPE', ANTONIO, DE DONATO, WALTER
openaire   +2 more sources

Characterizing dispersion in microfluidic channels [PDF]

open access: yesLab on a Chip, 2009
Dispersion or spreading of analyte bands is a barrier to achieving high resolution in microfluidic separations. The role of dispersion in separations is reviewed with emphasis on metrics, sources and common principles of analysis. Three sources of dispersion (a) inhomogeneous flow fields, (b) solute wall interactions and (c) force fields normal to ...
Subhra, Datta, Sandip, Ghosal
openaire   +2 more sources

Channel Measurements and Characterizations for Long Range Air-to-Ground Communication Systems in the UHF Band

open access: yesIEEE Access, 2022
In this paper, we consider long range air-to-ground (AG) communication systems which support aeronautical platforms including unmanned aerial vehicles (UAVs) in the ultra high frequency (UHF) band. For such a system, we present the measurement based path
Jaesin Kim, Inkyu Lee
doaj   +1 more source

Frequency Offset Compensation for OFDM Systems Using a Combined Autocorrelation and Wiener Filtering Scheme

open access: yesJournal of Telecommunications and Information Technology, 2023
One of the orthogonal frequency division multiplexing (OFDM) system disadvantages is its sensitivity to frequency offset and phase noise, which lead to losing the orthogonality between the subcarriers and thereby degrade the system performance.
Ali Ramadan Ali   +2 more
doaj   +1 more source

Analyzing the Performance of WBAN Links during Physical Activity Using Real Multi-Band Sensor Nodes

open access: yesApplied Sciences, 2021
Wireless body area networks (WBANs) present unique challenges due to their specific characteristics of mobility and over-the-body radio propagation. A huge amount of factors—both internal and external to the network—affect WBAN channel conditions, so a ...
Alba Rozas, Alvaro Araujo, Jan M. Rabaey
doaj   +1 more source

Characterization and Performance of a Thermal Camera Communication System

open access: yesSensors, 2020
This work presents a novel communications technology named Thermal Camera Communication (TCC), which is analogous to Optical Camera Communication (OCC).
Victor Guerra   +3 more
doaj   +1 more source

A Software-Defined Channel Sounder for Industrial Environments with Fast Time Variance [PDF]

open access: yes, 2018
Novel industrial wireless applications require wideband, real-time channel characterization due to complex multipath propagation. Rapid machine motion leads to fast time variance of the channel's reflective behavior, which must be captured for radio ...
Block, Dimitri   +2 more
core   +3 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

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

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