Concept
Low Power Wide Area Network
Publications associées (32)
Ultra Low-Power Frequency Synthesizers for Duty Cycled IoT radios
Internet of Things (IoT), which is one of the main talking points in the electronics industry today, consists of a number of highly miniaturized sensors and actuators which sense the physical environment around us and communicate that information to a cent ...
EPFL2016Multiple-Independent-Gate Field-Effect Transistors for High Computational Density and Low Power Consumption
Transistors are the fundamental elements in Integrated Circuits (IC). The development of transistors significantly improves the circuit performance. Numerous technology innovations have been adopted to maintain the continuous scaling down of transistors. W ...
EPFL2016Design of Ultra-Low-Power Smart Wearable Systems
David Atienza Alonso, Francisco Javier Rincon Vallejos, Srinivasan Murali, Grégoire Casimir Joseph Surrel
Latest progress in microelectronics have enabled a new generation of low cost, low power, miniaturized, yet, smart sensor nodes. This new generation of wearable sensor nodes promise to deploy automated complex bio-signals analysis. In this paper, we presen ...
IEEE Press2015OpenIoT: Open Source Internet-of-Things in the Cloud
Karl Aberer, Manfred Hauswirth, Jean Paul Calbimonte Perez, Ivana Podnar, Mehdi Riahi
Despite the proliferation of Internet-of-Things (IoT) platforms for building and deploying IoT applications in the cloud, there is still no easy way to integrate heterogeneous geographically and administratively dispersed sensors and IoT services in a sema ...
Springer2015Plug-and-play decentralized frequency regulation for power networks with FACTS devices
In this paper, we propose decentralized controllers for the design of the Automatic Generation Control (AGC) layer in power networks equipped with Flexible AC Transmission Systems (FACTS) devices. We focus on the capability, provided by FACTS, of redirecti ...
2014RF MEMS power sensors for ultra-low power wake-up circuit applications
Mihai Adrian Ionescu, Catherine Dehollain, Montserrat Fernandez-Bolanos Badia, Antonios Bazigos, Wolfgang Amadeus Vitale
Power savings requirements in wake-up circuits and RFID applications can greatly benefit from the emerging RF MEM technology. In this paper we report an RF MEM power sensor that can simultaneously offer significant power savings and co-integration with wak ...
2013Structured Overlay For Heterogeneous Environments: Design and Evaluation of Oscar
Karl Aberer, Anwitaman Datta, Sarunas Girdzijauskas
Recent years have seen advances in building large internet-scale index structures, generally known as structured overlays. Early structured overlays realized distributed hash tables (DHTs) which are ill suited for anything but exact queries. The need to su ...
2010Ultra Low Power Communication Protocols for UWB Impulse Radio Wireless Sensor Networks
This thesis evaluates the potential of Ultra Wideband Impulse Radio for wireless sensor network applications. Wireless sensor networks are collections of small electronic devices composed of one or more sensors to acquire information on their environment, ...
EPFL2010An Analytical Model for the Contention Access Period of the Slotted IEEE 802.15.4 with Service Differentiation
Giovanni De Micheli, Nadia Khaled, Eugène David Ngangue Ndih
The IEEE 802.15.4 standard is poised to become the global standard for low data rate, low energy consumption wireless sensor networks (WSN). By assigning the same sets of contention access parameters for all data frames and nodes, the contention access per ...
2009Stochastic Modeling and Analysis for Environmentally Powered Wireless Sensor Nodes
Giovanni De Micheli, David Atienza Alonso, Alexandru Emilian Susu
Environmental energy is becoming a feasible alternative for many low-power systems, such as wireless sensor nodes. Designing an environmentally powered device faces several challenges: choosing the exact type of the energy harvester, the energy storage ele ...
IEEE Press2008