Concept
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Publications associées (32)
A 0.14-nJ/b 200-Mb/s 2.7-3.5-GHz Quasi-Balanced FSK Transceiver With PLL-Based Modulation and Sideband Energy Detection
This paper describes a balanced frequency shift keying (FSK) modulation, namely quasi-balanced FSK (QB-FSK), for energy-efficient high-data-rate communication. Not suffering from data-pattern dependency, the proposed modulation method enables frequency mod ...
Piscataway2024Electric-field-induced second-order nonlinear processes in stoichiometric silicon nitride
Nonlinear optical frequency conversion is one of the driving research areas in photonics. Its quasi instantaneous response and the promise of low power consumption in integrated structures could cover the demand for fast signal processing with minimal ener ...
EPFL2024Numerical and experimental investigations of a microwave interferometer for the negative ion source SPIDER
Ivo Furno, Rémy Jacquier, Riccardo Agnello
The electron density close to the extraction grids and the co-extracted electrons represent a crucial issue when operating negative ion sources for fusion reactors. An excessive electron density in the plasma expansion region can indeed inhibit the negativ ...
IOP Publishing Ltd2023A Maximum-Likelihood-Based Two-User Receiver for LoRa Chirp Spread-Spectrum Modulation
Andreas Peter Burg, Alexios Konstantinos Balatsoukas Stimming, Orion Afisiadis, Joachim Tobias Tapparel, Mathieu Pierre Xhonneux
Long Range (LoRa) is an emerging low-power wide-area network technology offering long-range wireless connectivity to Internet of Things (IoT) devices. For energy efficiency reasons, LoRa end nodes implement a nonslotted ALOHA multiple access scheme to tran ...
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2022A Cryo-CMOS Wideband Quadrature Receiver With Frequency Synthesizer for Scalable Multiplexed Readout of Silicon Spin Qubits
Edoardo Charbon, Andrea Ruffino, Yatao Peng
In this article, a cryo-CMOS receiver integrated with a frequency synthesizer for scalable multiplexed readout of qubits is presented, focusing on radio frequency (RF) reflectometry readout of silicon-based semiconductor spin qubits/quantum dots. The propo ...
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2022A Low-Complexity LoRa Synchronization Algorithm Robust to Sampling Time Offsets
Orion Afisiadis, Mathieu Pierre Xhonneux
LoRaWAN is nowadays one of the most popular protocols for low-power Internet of Things communications. Although its physical layer, namely LoRa, has been thoroughly studied in the literature, aspects related to the synchronization of LoRa receivers have re ...
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2022Electronic properties and ion migration of “in vacuo” lithiated nanoporous WO3:Mo thin films
Josef Andreas Schuler, Luc Burnier, Jérémy Jacques Antonin Fleury
Electrochromic (EC) glazing helps manage daylight and solar heat gains in building, thereby allowing a reduction in energy consumption caused by heating, cooling, and artificial lighting. This study relates the optical and electronic properties of nanoporo ...
2022Enhancing the Reliability of Dense LoRaWAN Networks With Multi-User Receivers
Andreas Peter Burg, Joachim Tobias Tapparel, Mathieu Pierre Xhonneux
LoRaWAN is a low-power wireless technology that provides long-range connectivity to battery-powered Internet of Things (IoT) devices. To minimize the energy consumption of the IoT nodes, LoRaWAN networks use for the uplink a pure non-slotted ALOHA multiple ...
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2021Indoor Positioning System Based on Global Positioning System Signals with Down- and Up-Converters in 433 MHz ISM Band
Amir Mohsen Ahmadi Najafabadi, Abdulkadir Uzun
In this paper, an indoor positioning system using Global Positioning System (GPS) signals in the 433 MHz Industrial Scientific Medical (ISM) band is proposed, and an experimental demonstration of how the proposed system operates under both line-of-sight an ...
2021High-Accuracy Calibration-Free Calorimeter for the Measurement of Low Power Losses
Elison de Nazareth Matioli, Remco Franciscus Peter van Erp, Enea Figini, Armin Jafari, Reza Soleiman Zadeh Ardebili, Furkan Karakaya, Michaël Heijnemans
Wide-band-gap technologies enable ultra-high efficiencies in high-frequency power conversion. However, inadequate accuracies in electrical measurements could lead to spurious efficiency measurements, even above 100%. Furthermore, bandwidth limitations, par ...
2020