Now showing items 1-20 of 177

  • 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 ...
  • 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 ...
  • 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 MAC protocol for underwater sensors networks 

    Santos, Rodrigo; Orozco, Javier; Ochoa, Sergio; Meseguer Pallarès, Roc; Eggly, Gabriel (2015)
    Conference report
    Open Access
    Underwater sensor networks are becoming an important field of research, because of its everyday increasing application scope. Examples of their application areas are environmental and pollution monitoring (mainly oil ...
  • 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 ...
  • A multi-agent adaptive protocol for femto-satellite applications 

    González Rufián, Raquel; Naudó Vallverdú, Juan (Universitat Politècnica de Catalunya, 2011-07-15)
    Bachelor thesis
    Open Access
    Femto-satellites are a very promising category of satellites that weigh less than 100 grams. Also, a Pico-Rover it is a self-contained robot that weighs less than 1 kilogram and its motion works by rolling the external ...
  • 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 ...
  • An IoT sensor framework for smart offices 

    Alet Barcons, Bernat (Universitat Politècnica de Catalunya, 2016-02-03)
    Bachelor thesis
    Restricted access - confidentiality agreement
    Covenantee:  Rijksuniversiteit te Groningen
  • Aplicación de la tecnología de radio cognitiva en redes de área corporal 

    Nuevo Boo, Ruben (Universitat Politècnica de Catalunya, 2017-01-17)
    Bachelor thesis
    Open Access
    For the past few years, a number of new wireless technologies have emerged, allowing users to access the Internet and a myriad of services through mobile devices such as smartphones, tablets, wearables..., Among others, ...
  • Applying OGC sensor web enablement to ocean observing systems 

    Toma, Daniel; Río Fernandez, Joaquín del; Martínez Padró, Enoc; Delory, Eric; Jirka, Simon; Pearlman, Jay S; Waldmann, Christoph (2016)
    Conference report
    Open Access
    The complexity of marine installations for ocean observing systems has grown significantly in recent years. In a network consisting of tens, hundreds or thousands of marine instruments, manual configuration and integration ...
  • Applying sensor web technology to marine sensor data 

    Jirka, Simon; Río Fernandez, Joaquín del; Toma, Daniel; Nüst, Daniel; Stasch, Christoph; Delory, Eric (2015)
    Conference report
    Open Access
  • A proxy design to leverage the interconnection of CoAP wireless sensor networks with web applications 

    Ludovici, Alessandro; Calveras Augé, Anna M. (2015-01-09)
    Article
    Open Access
    In this paper, we present the design of a Constrained Application Protocol (CoAP) proxy able to interconnect Web applications based on Hypertext Transfer Protocol (HTTP) and WebSocket with CoAP based Wireless Sensor Networks. ...
  • A sensor web architecture for integrating smart oceanographic sensors into the semantic sensor web 

    Río Fernandez, Joaquín del; Toma, Daniel; Martínez Padró, Enoc; O'Reilly, Thomas C.; Delory, Eric; Pearlman, Jay S; Waldmann, Christoph; Jirka, Simon (2018-10)
    Article
    Open Access
    Effective ocean and coastal data management are needed to manage marine ecosystem health. Past ocean and coastal data management systems were often very specific to a particular application and region, but this focused ...
  • A Sensor web architecture for sharing oceanographic sensor data 

    Jirka, Simon; Toma, Daniel; Río Fernandez, Joaquín del; Delory, Eric (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Restricted access - publisher's policy
    This paper introduces the Sensor Web architecture of the NeXOS project as example how interoperable standards help, to facilitate the creation of an infrastructure for sharing oceanographic observation data and the ...