A5052769061- Energy Harvesting in Wireless Networks
- Microgrid Control and Optimization
- Power Line Communications and Noise
- Wind Turbine Control Systems
- Antenna Design and Analysis
- Advanced Wireless Communication Techniques
- Smart Grid Energy Management
- Islanding Detection in Power Systems
- Advanced MIMO Systems Optimization
- Wireless Communication Networks Research
- Electromagnetic Compatibility and Noise Suppression
- Microwave Engineering and Waveguides
- Error Correcting Code Techniques
- IoT Networks and Protocols
- Radio Frequency Integrated Circuit Design
- Bluetooth and Wireless Communication Technologies
- Smart Grid Security and Resilience
- Frequency Control in Power Systems
- Wireless Power Transfer Systems
- Telecommunications and Broadcasting Technologies
- RFID technology advancements
- Innovative Energy Harvesting Technologies
- Full-Duplex Wireless Communications
- Cooperative Communication and Network Coding
- Advanced Antenna and Metasurface Technologies
Universidade Federal do ABC
2015-2024
Federal Institute of São Paulo
2018-2024
Suzano (Brazil)
2024
Toronto Metropolitan University
2024
Pontifícia Universidade Católica de São Paulo
2023
Secretaria de Planejamento e Gestão
2013
Universidade Estadual de Campinas (UNICAMP)
2013
University of Bremen
2011
Universidade de São Paulo
2002-2005
Universidade Politecnica
2004
This paper presents a performance analysis of wireless direct power control system for switched reluctance aerogenerators. Aiming at smart grid scenario, the utilization technologies transmitting information requires powerful modulation and error-correction coding schemes to avoid any serious problems energetic plant. These transmission errors can cause permanent damages in components turbine converters, they also compromise quality energy delivered grid. The proposed is investigated...
Combined solar and radio frequency (RF) harvesting systems are drawing attention by offering self-powered ability to low-power devices, an essential aspect the success of Internet Things. One main challenges these is improve rectennas efficiency optimizing individual energy collection conversion capacity each source. To overcome this issue, letter presents a novel 2.4-GHz rectenna structure for applications based on coplanar antenna array integrated with multicrystalline cells, whose...
Background/Objectives: The timely initiation of antiretroviral therapy (ART) in persons living with HIV (PLWH) improves clinical outcomes. However, ART commencement is often delayed. Portugal, which has one the highest new diagnosis rates within European Union, limited available data. Evidence from 2017-2018 suggests that average time to exceeds recommendations for optimal benefits. This study aimed assess number days first hospital appointment among newly diagnosed PLWH Portugal between...
The PLC technology could be an additional alternative on the market for data transmission in industrial applications, like networks used to controlling machines and collecting sensor readings at field level. This paper presents a study about needs concerning transmission, sources of interference attenuation signal industry best available these applications. results real communication tests with G3-PLC MODEMs working physically simulated environment are presented. Different bands subcarrier...
This article aims to contribute for the improvement of low-power Radio Frequency Energy Harvesting (RFEH) designs based on Schottky Barrier Diode (SBD) rectifiers, presenting a study relationship between RF-DC Power Conversion Efficiency (PCE) and circuit temperature, which is directly related non-linear behavior metal-semiconductor junction SBDs. For this purpose, SPICE diode models were revisited, evaluating temperature dependence its effects forward reverse conduction modes. The SBDs...
Wind energy can be considered a push-driver factor in the integration of renewable sources within concept smart grids. For its full deployment, it requires modern telecommunication infrastructure for transmitting control signals around distributed generation, which, wireless communication standards stand out employing digital modulation and coding schemes error correction, order to guarantee power plant operability. In some developing countries, such as Brazil, high penetration commercial...
The aim of this work is to model Schottky diodes series rectifier for application in Radio Frequency Energy Harvesting (RFEH). A time-domain approach proposed, including the reverse conduction diodes, which can significantly degrade Power Conversion Efficiency (PCE) as diode input power increases. influences load, temperature, matching network and choke inductor have also been considered. representativeness was validated by means computer simulations experimental results.
The aim of this work is to analyze and optimize the design low-power Radio Frequency (RF) Energy Harvesting rectifiers by using an Evolutionary Algorithm. Although, generally neglected in literature, RF rectifier operation strongly depends on temperature. When it varies, input impedance can change significantly, affecting circuit matching its power conversion efficiency. In work, evolutionary algorithm used identify which parameters diode are responsible for performance degradation as a...
This paper presents a patch antenna array topology for Simultaneous Wireless Information and Power Transfer (SWIPT) applications. The resulting Double Patch Antenna Array (DPA) is composed of two antennas operating at different frequencies fabricated on unique substrate. One the patches operates 1.8 GHz mobile communication band used wireless communication, while other one 2.4 Industrial, Scientific, Medical (ISM) band, Radio Frequency Energy Harvesting (RFEH). analyzes measurements carried...
Transmit diversity can be applied to orthogonal frequency division multiplexing (OFDM) systems by adopting space-frequency block coding (SFBC). To carry out simple linear decoding, it is usually assumed that the channel remains constant within an OFDM symbol. However, this assumption becomes unreliable when system operates in a severe multipath environment presenting time and selective fading. Due fact received signal composed overlapped signals transmitted from different transmit antennas,...
Due to the shutdown of analog TV signal transmissions and proliferation new installations Brazilian Digital System throughout country, it is necessary a deeper understanding main characteristics digital propagation channels enable implementation these systems in more streamlined efficient manner. The models considered for deployment follow national international standards recommendations, however, general, are not very accurate due specific terrain variations intrinsic stochastic each...
Much has been advanced in the area of Smart Grids, and such progress not bigger only because related technology is usually restricted often relies on proprietary components. Using Agent-Based paradigm, we intend to build an open, scalable, interoperable Grid architecture complaince with IEEE FIPA specifications. In this paper, present a model for remote measurement environment order validate use agent Advanced Metering Infrastructure (AMI) systems.