Buscar
Mostrando ítems 1-10 de 15
Analysis of radio wave propagation for ISM 2.4GHz wireless sensor networks in inhomogeneous vegetation environments
(2014)
Contribución a congreso / Biltzarrerako ekarpena,
The use of wireless networks has been extended in an exponential growing due to the improvement in terms of battery life and low consumption of the devices. However, it is highly important to conduct previous radio propagation ...
All-metallic ε-near-zero (ENZ) lens based on ultra-narrow hollow rectangular waveguides: experimental results
(IEEE, 2014)
Contribución a congreso / Biltzarrerako ekarpena,
Here we perform numerical and experimental investigation of plano-concave all-metallic ε-near-zero (ENZ) lens with operational frequency f = 144 GHz. The ENZ lens is achieved by stacking an array of narrow hollow rectangular ...
An easy to deploy street light control system based on wireless communication and LED technology
(MDPI, 2013)
Contribución a congreso / Biltzarrerako ekarpena,
This paper presents an intelligent streetlight management system based on LED lamps, designed to facilitate its deployment in existing facilities. The proposed approach, which is based on wireless communication technologies, ...
Ubiquitous connected train based on train-to-ground and intra-wagon communications capable of providing on trip customized digital services for passengers
(MDPI, 2014)
Contribución a congreso / Biltzarrerako ekarpena,
During the last years, the application of different wireless technologies has been explored in order to enable Internet connectivity from vehicles. In addition, the widespread adoption of smartphones by citizens represents ...
New approach to suppress mutual coupling between longitudinal-slotted arrays based on SIW antenna loaded with metal-fences working on VHF/UHF frequency-bands: study, investigation, and principle
(IEEE, 2019)
info:eu-repo/semantics/conferenceObject,
In this work it is demonstrated that substrate integrated waveguide longitudinal slotted array antenna (SIWLSAA) which is loaded with metal fences exhibits high-isolation across VHF/UHF bands. A reference SIWLSAA used for ...
A new waveguide slot array antenna with high isolation and high antenna bandwidth operation on Ku- and K- Bands for radar and MIMO systems
(IEEE, 2018)
info:eu-repo/semantics/conferenceObject,
In this paper a novel technique is proposed to reduce the mutual coupling between the radiating elements of a waveguide slot array antenna. This is achieved by inserting slots between the waveguide oval shaped slots. The ...
Implementation and analysis of a wireless sensor network-based pet location monitoring system for domestic scenarios
(MDPI, 2016)
Contribución a congreso / Biltzarrerako ekarpena,
The flexibility of new age wireless networks and the variety of sensors to measure a high number of variables, lead to new scenarios where anything can be monitored by small electronic devices, thereby implementing Wireless ...
Characterization of radio propagation channel in urban vehicle to infrastructure environments to support WSNs
(MDPI, 2016)
Contribución a congreso / Biltzarrerako ekarpena,
Vehicular ad hoc Networks (VANETs) enable vehicles to communicate with each other as well as with roadside units (RSUs). Although there is a significant research effort in radio channel modelling focused in vehicle to ...
Analysis of bluetooth-based wireless sensor networks performance in hospital environments
(MDPI, 2016)
Contribución a congreso / Biltzarrerako ekarpena,
In this work, a method to analyze the performance of Bluetooth-based Wireless Sensor Networks (WSN) deployed within hospital environments is presented. Due to the complexity that this kind of scenarios exhibit in terms of ...
Characterization of near-ground radio propagation channel for wireless sensor network with application in smart agriculture
(MDPI, 2017)
Contribución a congreso / Biltzarrerako ekarpena,
In this contribution, we present a narrowband radio channel model for a scenario wherein
the radio link operates under near-ground conditions, occurring on a ZigBee wireless sensor
networks applied to smart agriculture. ...