Now showing items 1-20 of 230

  • A cluster head decision system for sensor networks using fuzzy logic and number of neighbor nodes 

    Anno, Junpei; Barolli, Leonard; Durresi, Arjan; Xhafa Xhafa, Fatos; Koyama, Akio (Institute of Electrical and Electronics Engineers (IEEE), 2009)
    Conference report
    Open Access
    Cluster formation and cluster head selection are important problems in sensor network applications and can drastically affect the network’s communication energy dissipation. However, the selection of cluster head is not ...
  • A cluster head selection method for wireless sensor networks based on fuzzy logic 

    Anno, Junpei; Barolli, Leonard; Xhafa Xhafa, Fatos; Durresi, Arjan (Institute of Electrical and Electronics Engineers (IEEE), 2007)
    Conference report
    Open Access
    Sensor networks supported by recent technological advances in low power wireless communications along with silicon integration of various functionalities are emerging as a critically important computer class that enable ...
  • A context-aware service architecture for the integration of body sensor networks and social networks through IP multimedia subsystem 

    Domingo Aladrén, Mari Carmen (2011-01-01)
    Article
    Restricted access - publisher's policy
    In this article a new context-aware architecture is proposed for the integration of body sensor networks and social networks through the IP Multimedia Subsystem. Its motivating application scenarios are described. The ...
  • Acoustic telemetry system for underwater sensors 

    Sarriá Gandul, David; Molino Minero, Erik; Manuel Lázaro, Antonio (IEEE, 2012)
    Conference report
    Restricted access - publisher's policy
    The design of an acoustic telemetry system is presented and evaluated. We describe the main characteristics of the communication system, the transmitter and the receiver. The scheme of the proposed design consists of ...
  • Acquisition system for improving energy efficiency in trawler vessels 

    Sarriá Gandul, David; Sánchez García, Antonio Francisco; Río Fernandez, Joaquín del; Molino Minero, Erik; Manuel Lázaro, Antonio; Valls Vilaespasa, Frederic (2010)
    Conference report
    Restricted access - publisher's policy
    A remote data measurement and acquisition system has been developed to study the energy consumption of fishing trawler vessels, with the purpose to improve their efficiency. The system consists on a sensor network ...
  • Adaptación de plataformas de sensores inalámbricas a la arquitectura de TinyOS 

    Gómez Sans, Álvaro (Universitat Politècnica de Catalunya, 2010-07)
    Master thesis (pre-Bologna period)
    Open Access
    Covenantee:  Pontificia Universidad Católica de Chile
    Este estudio esta realizado para dar una visión global del mundo de las redes de sensores inalámbricas a partir de aquí WSN, y sus aplicaciones. Tras una breve introducción se describe el proceso de selección de una ...
  • Adaptive localization and tracking of objects in a sensor network 

    López Rodríguez, Adrian (Universitat Politècnica de Catalunya, 2014-12-18)
    Master thesis (pre-Bologna period)
    Open Access
    Covenantee:  Northeastern University
    [ANGLÈS] Wireless Sensor Networks (WSNs) are used to monitor physical or environmental conditions, and to pass their data through the network to a central location. These networks have applications in diverse areas including ...
  • A diffusion-based distributed EM algorithm for density estimation in wireless sensor networks 

    Silva Pereira, Silvana; López Valcarce, Roberto; Pagès Zamora, Alba Maria (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Conference report
    Restricted access - publisher's policy
    We address the problem of distributed estimation of a parameter from a set of noisy observations collected by a sensor network, assuming that some sensors may be subject to data failures and report only noise. In such ...
  • A diffusion-based em algorithm for distributed estimation in unreliable sensor networks 

    Silva Pereira, Silvana; López Valcarce, Roberto; Pagès Zamora, Alba Maria (2013-01)
    Article
    Restricted access - publisher's policy
    We address the problem of distributed estimation of a parameter from a set of noisy observations collected by a sensor network, assuming that some sensors may be subject to data failures and report only noise. In such ...
  • A distributed energy-aware routing protocol for underwater wireless sensor networks 

    Domingo Aladrén, Mari Carmen (2011-04-01)
    Article
    Restricted access - publisher's policy
    The design of routing protocols for Underwater Wireless Sensor Networks (UWSNs) poses many challenges due to the intrinsic properties of underwater environments. In this paper we present DUCS (Distributed Underwater ...
  • Advancing the interoperability of ocean sensors. Workshop demostration at ocean innovation 2008 congress 

    Río Fernandez, Joaquín del; Toma, Daniel; Manuel Lázaro, Antonio (2008-12-01)
    Article
    Open Access
    The aim of this project is to implement a smart sensor worldwide network based on IEEE 1451 family of standards which can provide multiple interoperable clients to access geospatial and sensor data for national local ...
  • Agitació tèrmica mitjançant ultrasons 

    Rodríguez Gómez, Juan Pablo (Universitat Politècnica de Catalunya, 2007-01)
    Master thesis (pre-Bologna period)
    Restricted access - author's decision
    El que es pretén amb aquest projecte és deixar oberta una línia de treball i investigació sobre l’aplicació dels ultrasons en la humidificació i producció de vapor fred (boira). Es vol veure com evolucionen magnituds tals ...
  • A hybrid cooperative design for energy-efficient surveillance in wireless multimedia sensor networks 

    Alaei, Mohammad; Barceló Ordinas, José María (VDE Conference Publications, 2012)
    Conference report
    Restricted access - publisher's policy
    In Wireless Multimedia Sensor Networks (WMSNs) the lifetime of battery-operated visual nodes is limited by their energy consumption, which is proportional to the energy required for sensing, processing, and transmitting ...
  • Almacenamiento en nodos de redes inalámbricas de sensores 

    Pérez Rodríguez, Iria (Universitat Politècnica de Catalunya, 2013-01-21)
    Master thesis (pre-Bologna period)
    Open Access
    [ANGLÈS] The aim of this project is to store data inside a Wireless Sensor Network node, in order to transmit it when the conditions are favourable, using a certain hardware and software stack. This necessity comes from ...
  • A method for clustering and cooperation in wireless multimedia sensor networks 

    Alaei, Mohammad; Barceló Ordinas, José María (2010-04)
    Article
    Open Access
    Wireless multimedia sensor nodes sense areas that are uncorrelated to the areas covered by radio neighbouring sensors. Thus, node clustering for coordinating multimedia sensing and processing cannot be based on classical ...
  • A mixed-signal control system for Lorentz-force resonant MEMS magnetometers 

    Sánchez Chiva, José María; Valle Fraga, Juan José; Fernández, Daniel; Madrenas Boadas, Jordi (2019-09-01)
    Article
    Open Access
    This paper presents a mixed-signal closed-loop control system for Lorentz force resonant MEMS magnetometers. The control system contributes to 1) the automatic phase control of the loop, that allows start-up and keeps ...
  • An alternative wearable tracking system based on a low-power wide-area network 

    Fernández García, Raúl; Gil Galí, Ignacio (2017-03-14)
    Article
    Open Access
    This work presents an alternative wearable tracking system based on a low-power wide area network. A complete GPS receiver was integrated with a textile substrate, and the latitude and longitude coordinates were sent to ...
  • 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. ...
  • An intelligent fuzzy-based cluster head selection system for wireless sensor networks and its performance evaluation 

    Ando, Hironori; Barolli, Leonard; Durresi, Arjan; Xhafa Xhafa, Fatos; Koyama, Akio (Institute of Electrical and Electronics Engineers (IEEE), 2010)
    Conference report
    Open Access
    Sensor networks supported by recent technological advances in low power wireless communications along with silicon integration of various functionalities are emerging as a critically important computer class that enable ...
  • An intelligent fuzzy-based cluster head selection system for WSNs and its performance evaluation for D3N parameter 

    Ando, Hironori; Barolli, Leonard; Durresi, Arjan; Xhafa Xhafa, Fatos; Koyama, Akio (Institute of Electrical and Electronics Engineers (IEEE), 2010)
    Conference report
    Open Access
    Cluster formation and cluster head selection are important problems in sensor network applications and can drastically affect the network's communication energy dissipation. However, selecting of the cluster head is not ...