Buscar
Mostrando ítems 1-10 de 49
Deterministic wireless channel characterization towards the integration of communication capabilities to enable context aware industrial internet of thing environments
(Springer, 2022)
Artículo / Artikulua,
In order to provide interactive capabilities within the context of Internet of Thing (IoT) applications, wireless communication systems play a key role, owing to in-herent mobility, ubiquity and ease of deployment. However, ...
A comprehensive survey on 'circular polarized antennas' for existing and emerging wireless communication technologies
(IOP Publishing, 2022)
info:eu-repo/semantics/article,
Circular polarized (CP) antennas are well suited for long-distance transmission attainment. In order to be adaptable for beyond 5G communication, a detailed and systematic investigation of their important conventional ...
Performance analysis of ZigBee wireless networks for AAL through hybrid ray launching and collaborative filtering
(Hindawi, 2016)
info:eu-repo/semantics/article,
This paper presents a novel hybrid simulation method based on the combination of an in-house developed 3D ray launching
algorithm and a collaborative filtering (CF) technique, which will be used to analyze the performance ...
Implementation and operational analysis of an interactive intensive care unit within a smart health context
(MDPI, 2018)
info:eu-repo/semantics/article,
In the context of hospital management and operation, Intensive Care Units (ICU) are
one of the most challenging in terms of time responsiveness and criticality, in which adequate
resource management and signal processing ...
Spatial characterization of personal RF-EMF exposure in public transportation buses
(IEEE, 2019)
Artículo / Artikulua,
New services and applications within vehicular environments employ multiple wireless communication systems,
within a Heterogeneous Network framework. In this context, evaluation of electromagnetic field impact is compulsory, ...
3D-ray launching MIMO channel geometric estimation
(IEEE, 2022)
Artículo / Artikulua,
The complete multiple-input–multiple-output
(MIMO) channel simulation in deterministic techniques can
be a computationally intensive task, due to the inherent scenario’s
complexity and number of antennas. The spatial ...
Impedance bandwidth improvement of a planar antenna based on metamaterial-inspired T-matching network
(Institute of Electrical and Electronics Engineers Inc., 2021)
Artículo / Artikulua,
In this paper a metamaterial-inspired T-matching network is directly imbedded inside the feedline of a microstrip antenna to realize optimum power transfer between the front-end of an RF Wireless transceiver and the antenna. ...
Optimum power transfer in RF front end systems using adaptive impedance matching technique
(Nature Research, 2021)
Artículo / Artikulua,
Matching the antenna’s impedance to the RF-front-end of a wireless communications system is challenging as the impedance varies with its surround environment. Autonomously matching the antenna to the RF-front-end is therefore ...
A comprehensive survey on "Various decoupling mechanisms with focus on metamaterial and metasurface principles applicable to SAR and MIMO antenna systems"
(IEEE, 2020)
Artículo / Artikulua,
Nowadays synthetic aperture radar (SAR) and multiple-input-multiple-output (MIMO)
antenna systems with the capability to radiate waves in more than one pattern and polarization are playing a
key role in modern telecommunication ...
Empirical and modeling approach for environmental indoor RF-EMF assessment in complex high-node density scenarios: public shopping malls case study
(IEEE, 2021)
Artículo / Artikulua,
This work provides an intensive and comprehensive in-depth study from an empirical and modeling approach of the environmental radiofrequency electromagnetic fields (RF-EMF) radiation exposure in public shopping malls, as ...