Now showing items 1-20 of 101

    • A battery-less, self-sustaining RF energy harvesting circuit with TFETs for µW power applications 

      Nunes Cavalheiro, David Manuel; Moll Echeto, Francisco de Borja; Valtchev, Stanimir (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Conference report
      Open Access
      This paper proposes a Tunnel FET (TFET) power management circuit for RF energy harvesting applications. In contrast with conventional MOSFET technologies, the improved electrical characteristics of TFETs promise a better ...
    • A comprehensive method to taxonomize mechanical energy harvesting technologies 

      Diez, P.L.; Gabilondo, I.; Alarcón Cot, Eduardo José; Moll Echeto, Francisco de Borja (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Restricted access - publisher's policy
      Traditional industry is experiencing a worldwide development with Industry 4.0. Wireless sensor networks (WSNs) have a main role in this revolution as an essential part of data acquisition. The way in which WSNs are powered ...
    • A new MPPT method for low-power solar energy harvesting 

      López Lapeña, Oscar; Penella López, María Teresa; Gasulla Forner, Manuel (2010-09)
      Article
      Open Access
      This paper describes a new maximum-power-pointtracking (MPPT) method focused on low-power (< 1 W) photovoltaic (PV) panels. The static and dynamic performance is theoretically analyzed, and design criteria are provided. ...
    • A nonlinear kinetic energy harvester for light suface ocean drifters 

      Toma, Daniel; Carandell Widmer, Matias; Carbonell Ventura, Montserrat; Vals, Lluis; Río Fernandez, Joaquín del (SARTI, 2018)
      Article
      Open Access
      A nonlinear kinetic energy harvester for ocean drifter devices is presented. The design contains a gyroscopic wave energy harvesting system, capable of generating power from the wave-induced translational and rotational ...
    • A novel wake-up communication system using solar panel and visible light communication 

      Carrascal, Carolina; Seyfettin Demirkol, Ilker; Paradells Aspas, Josep (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Conference report
      Restricted access - publisher's policy
      One of the most promising energy-efficient communication methods is the use of wake-up receivers. In this paper, we propose and develop a novel wake-up communication system that uses Visible Light Communication (VLC) and ...
    • A review of commercial energy harvesters for autonomous sensors 

      Penella López, María Teresa; Gasulla Forner, Manuel (2007-05-01)
      Conference report
      Open Access
      Current commercial autonomous sensors are mainly powered by primary batteries. Batteries need to be replaced and hence can become the largest and most expensive part of the system. On the other hand, our environment is ...
    • A review of pzt patches applications in submerged systems 

      Presas, Alexandre; Luo, Yongyao; Wang, Zhengwei; Valentín Ruiz, David; Egusquiza Montagut, Mònica (Multidisciplinary Digital Publishing Institute (MDPI), 2018-07-12)
      Article
      Open Access
      Submerged systems are found in many engineering, biological, and medicinal applications. For such systems, due to the particular environmental conditions and working medium, the research on the mechanical and structural ...
    • A simple and efficient MPPT method for low-power PV cells 

      Penella López, María Teresa; Gasulla Forner, Manuel (2014-01-01)
      Article
      Open Access
      Small-size PV cells have been used to power sensor nodes. These devices present limited computing resources and so low complexity methods have been used in order to extract the maximum power from the PV cells. Among them, ...
    • A stochastic approach for resource allocation with backhaul and energy harvesting constraints 

      Rubio López, Javier; Muñoz Medina, Olga; Pascual Iserte, Antonio (2016-07)
      Article
      Open Access
      We propose a novel stochastic radio-resource-allocation strategy that achieves long-term fairness considering backhaul and air-interface capacity limitations. The base station (BS) is powered only with a finite battery ...
    • An impacting energy harvester through piezoelectric device for oscillating water flow 

      Toma, Daniel Mihail; Carbonell Ventura, Montserrat; Pujol Bresco, David; Manuel Lázaro, Antonio; Miquel Masalles, Jaume (2013)
      Conference report
      Open Access
      The reduced power requirements of miniaturized electronics offers the opportunity to create devices having their power supply based on energy harvesters. In this paper a new idea is proposed and studied to supply underwater ...
    • Analysis of bifurcation behavior of a piecewise linear vibrator with electromagnetic coupling for energy harvesting applications 

      El Aroudi, Abdelali; Ouakad, Hassen; Benadero García-Morato, Luis; Younis, Mohammad (2014-05)
      Article
      Open Access
      Recently, nonlinearities have been shown to play an important role in increasing the extracted energy of vibration-based energy harvesting systems. In this paper, we study the dynamical behavior of a piecewise linear (PWL) ...
    • Anàlisi comparativa de polítiques energètiques pels prosumidors residencials de la UE 

      Rovira Torné, Òscar (Universitat Politècnica de Catalunya, 2020-02-06)
      Bachelor thesis
      Open Access
      Efectuar una comparació de la legislació referent als prosumidors en diferents països de la Unió Europea, principalment la tecnología solar fotovoltaica. I finalment, aplicar-la a un cas pràctic.
    • Anàlisi d'un sistema de recol·lecció d'energia a partir de treball mecànic per l'automatització de contenidors d'escombraries 

      Gaspà i Manzana, Ferran (Universitat Politècnica de Catalunya, 2013-06-10)
      Bachelor thesis
      Open Access
      S’ha realitzat aquest projecte amb l’objectiu de comprovar la viabilitat tècnica d’operar un sistema de recol·lecció d’energia basat en el treball mecànic d’una persona. La primera part del projecte presenta l’estat de ...
    • Aportación al estudio de la eficiencia energética 

      Puerta Marin, Xavier (Universitat Politècnica de Catalunya, 2013-06-10)
      Bachelor thesis
      Restricted access - author's decision
      L’objectiu d’aquest projecte es el de realitzar una aportació al estudi de l’eficiència energètica. Concretament, el projecte té la finalitat d’augmentar l’eficiència energètica dels sistemes de bombeig de baixa potencia ...
    • Area model and dimensioning guidelines of multisource energy harvesting for nano-micro interface 

      Gomez Cid-Fuentes, Raül; Cabellos Aparicio, Alberto; Alarcón Cot, Eduardo José (2016-02-01)
      Article
      Open Access
      Multisource energy harvesters are a promising, robust alternative to power the future Internet of Nano Things (IoNT), since the network elements can maintain their operation regardless of the fact that one of its energy ...
    • Battery-aware probabilistic access scheme with nature and RF energy harvesting for cognitive radio networks 

      Molina Oliveras, Francesc (Universitat Politècnica de Catalunya, 2015-07)
      Bachelor thesis
      Open Access
      In this work, a short-range unlicensed link intends to coexist with a directional-nodes licensed network, deployed as a 2D Homogeneous Poisson Point Process. The unlicensed transmitter uses two energy harvesting mechanisms ...
    • Caracterización y diseño de sistemas de adquisición y gestión de datos, aplicados a la medición de la actividad sísmica volcánica 

      Carreras Pons, Normandino (Universitat Politècnica de Catalunya, 2016-04-11)
      Doctoral thesis
      Open Access
      Volcanic eruptions result of the energy stored within the planet are a danger to both populations and to the towns. As inevitable natural events, it is necessary to continue evolving in the study of the physics of the Earth ...
    • Circuit area optimization in energy temporal sparse scenarios for multiple harvester powered systems 

      Gomez Cid-Fuentes, Raül; Cabellos Aparicio, Alberto; Alarcón Cot, Eduardo José (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Conference report
      Restricted access - publisher's policy
      Multi-source energy harvesters are gaining interest as a robust alternative to power wireless sensors, since the sensor node can maintain its operation regardless of the fact that one of its energy sources might be temporarily ...
    • Competitive analysis of energy harvesting wireless communication systems 

      Gomez-Vilardebo, Jesus; Gündüz, Deniz (Institute of Electrical and Electronics Engineers, 2014-05-16)
      Conference lecture
      Open Access
      A competitive analysis for the online and offline optimization problems for a slotted energy harvesting (EH) wireless communication system is studied. The objective is to design online strategies that minimize the competitive ...
    • Competitive design of energy harvesting communications in wireless fading channels 

      Gómez-Vilardebò, Jesus (Institute of Electrical and Electronic Engineers, 2015-07-01)
      Conference lecture
      Open Access
      This paper considers the design of online transmission policies for slotted energy harvesting point-to-point communications systems in wireless fading channels. The objective is to minimize the competitive rate gap that ...