Ara es mostren els items 1-20 de 85

    • A 16-kV HBM RF ESD Protection Codesign for a 1-mW CMOS Direct Conversion Receiver Operating in the 2.4-GHz ISM Band 

      González Jiménez, José Luis; Solar, H.; Adin, Iñigo; Mateo Peña, Diego; Berenguer, Roc (2011-09)
      Article
      Accés restringit per política de l'editorial
      A decreasing-sized π -model electrostatic discharge (ESD) protection structure is presented and applied to protect against ESD stresses at the RF input pad of an ultra-low power CMOS front-end operating in the 2.4-GHz ...
    • A cognitive management framework for spectrum selection 

      Bouali, Faouzi; Sallent Roig, Oriol; Pérez Romero, Jordi; Agustí Comes, Ramon (2013-10-04)
      Article
      Accés restringit per política de l'editorial
      To increase cognitive radio (CR) operation efficiency, there has been an interest in enhancing the awareness level of spectrum utilization. In this context, this paper builds a new cognitive management functional architecture ...
    • A discrete bit loading algorithm for FBMC/OQAM 

      Caus López, Marius; Pérez Neira, Ana Isabel; García Armada, Ana (2012-06)
      Article
      Accés restringit per política de l'editorial
      In this letter the discrete rate maximization problem is investigated for FBMC/OQAM. The analysis reveals that if there is crosstalk certain bit allocations violate the power constraints. Aiming at ensuring the feasibility ...
    • A framework for multidimensional modelling of spectrum occupancy in the simulation of cognitive radio systems 

      López Benitez, Miguel; Casadevall Palacio, Fernando José (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Spectrum models play a key role in the research of Dynamic Spectrum Access/Cognitive Radio (DSA/CR) systems. Models existing to date are able to characterise the statistical properties of spectrum occupancy in only one ...
    • A low-cost tracking system for running race applications based on bluetooth low energy technology 

      Pérez Díaz de Cerio, David; Hernandez Solana, Angela; Valdovinos, Antonio; Valenzuela González, José Luis (Multidisciplinary Digital Publishing Institute (MDPI), 2018-03-20)
      Article
      Accés obert
      Timing points used in running races and other competition events are generally based on radio-frequency identification (RFID) technology. Athletes’ times are calculated via passive RFID tags and reader kits. Specifically, ...
    • A new RAN slicing strategy for multi-tenancy support in a WLAN scenario 

      Koutlia, Aikaterini; Umbert Juliana, Anna; Riggio, R.; Vilà Muñoz, Irene; Casadevall Palacio, Fernando José (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Radio Access Network (RAN) slicing is a key technology, based on Software Defined Networks (SDN) and Network Function Virtualization (NFV), which aims at providing a more efficient utilization of the available network ...
    • A novel reconstruction algorithm for the improvement of SMOS brightness temperatures 

      González Gambau, Veronica; Turiel, Antonio; Martinez, Justino; Olmedo, Edson; Corbella Sanahuja, Ignasi (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      RFI (Radio Frequency Interference) sources, Sun signal and even land-sea transitions may generate large sidelobes that corrupt SMOS brightness temperature products and therefore, the quality of the soil moisture and sea ...
    • A radio spectrum measurement platform for spectrum surveying in cognitive radio 

      López Benítez, Miguel; Casadevall Palacio, Fernando José (2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This paper presents a sophisticated radio spectrum measurement platform specifically envisaged and designed for spectrum occupancy surveys in the context of Dynamic Spectrum Access/Cognitive Radio (DSA/CR). The presented ...
    • An agent-based simulation model of a market for dynamic spectrum access 

      López Berga, Ester; Murcia, César; Beltran, Fernando (2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The dramatic increase in the demand for spectrum-based services and devices, combined with the long-term exclusive model of spectrum management, has led to an apparent spectrum scarcity. To overcome this scarcity, the ...
    • An open-source software-defined radio collection for GNSS receivers 

      Bernabeu Frias, Joan Miguel (Universitat Politècnica de Catalunya, 2022-07-04)
      Projecte Final de Màster Oficial
      Accés obert
      Realitzat a/amb:   University of Colorado Boulder
      The master's thesis has as a main objective to encompass the progress and efforts dedicated to the development and improvement of an open-source collection of Software-Defined Radios (SDR) for Global Navigation Satellite ...
    • Analyzing the effect of power control algorithms on the receiver's computing resource consumption 

      Gómez Miguelez, Ismael; Marojevic, Vuk; Salazar Hernández, Dagoberto José; Gelonch Bosch, Antonio José (2010)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Traditional Software-Defined Radios are limited in their ability to share the computational infrastructure between different channel flows of different demands. Future terminals should move to a shared resource model to ...
    • Beyond the ID in RFID: novel applications of the RFID technology 

      Armengol Urpí, Alexandre (Universitat Politècnica de Catalunya, 2016-05-25)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      Realitzat a/amb:   Massachusetts Institute of Technology
      Radio Frequency Identification (RFID) is a technology that uses radio waves to read and capture information stored in a tag attached to an object or location. In this work, we further exploit this technology to find other ...
    • Caracterización indoor y ampliación de un rem (radio enviroment map) en el campus nord de la UPC 

      Mendes Gonçalves, Dayana Fátima (Universitat Politècnica de Catalunya, 2015-02)
      Projecte/Treball Final de Carrera
      Accés obert
      [ANGLÈS] Currently the radio spectrum is almost entirely assigned or licensed to different operators. However, from the rise of wireless technologies in the last decade, different studies conducted independently in different ...
    • Carrier phase synchronisation scheme for very long baseline coherent arrays 

      Merlano Duncan, Juan Carlos; Mallorquí Franquet, Jordi Joan; López Dekker, Francisco J. (Institution of Electrical Engineers, 2012-07-19)
      Article
      Accés restringit per política de l'editorial
      Proposed is a new carrier phase synchronisation scheme used to provide a stable phase reference to a very distant station. Channel induced phase fluctuations are characterised and compensated for with a round-trip loop ...
    • Centralized vs distributed resource allocation in multi cell OFDMA systems 

      Cicalò, Sergio; Tralli, Velio; Pérez Neira, Ana Isabel (2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Radio Resource Management with Inter-cell Interference Coordination (ICIC), is a key issue under investigation for next generation wireless systems such as Long Term Evolution (LTE). Although centralized resource allocation ...
    • Characterization and exploitation of heterogeneous OFDM primary users in cognitive radio networks 

      Vizziello, Anna; Akyildiz, Ian F.; Agustí Comes, Ramon; Favalli, Lorenzo; Savazzi, Pietro (2013-08)
      Article
      Accés restringit per política de l'editorial
    • Cognitive radio resource management exploiting heterogeneous primary users and a radio environment map database 

      Vizziello, Anna; Akyildiz, Ian F.; Agustí Comes, Ramon; Favalli, Lorenzo; Savazzi, Pietro (2013-08)
      Article
      Accés restringit per política de l'editorial
      The efficient utilization of radio resources is a fundamental issue in cognitive radio (CR) networks. Thus, a novel cognitive radio resource management (RRM) is proposed to improve the spectrum utilization efficiency. ...
    • Construction of a Radio Environment Map of TV White Spaces for Barcelona Metropolitan Area 

      Cervià Caballé, Martí (Universitat Politècnica de Catalunya, 2015-02)
      Treball Final de Grau
      Accés obert
      [ANGLÈS] This thesis covers the construction of a REM (Radio Environment Map) for TV-WS (TV white spaces) for the metropolitan area of Barcelona, and a GUI for accessing it. A REM is a key piece in the implementation of a ...
    • Construradio 

      Escola Politècnica Superior d'Edificació de Barcelona (Escola Politècnica Superior d'Edificació de Barcelona. Serveis Informàtics, 2014-04-28)
      Audiovisual
      Accés obert
      El dilluns dia 28 d'abril vam tenir la ràdio en directe. Des de la sala d'actes de l'Escola, es va emetre el programa de ràdio "CONSTRURADIO" amb la participació de convidats i tertulians relacionats amb el sector i vinculats ...
    • Control remoto vía internet utilizando la tarjeta de sonido del ordenador 

      Agustí Costa, Oriol; Miguel López, José María (2014-12-01)
      Article
      Accés restringit per acord de confidencialitat
      Simple y eficaz sistema para conectar/desconectar cualquier equipo desde cualquier parte del mundo. Lo único que se requiere es una conexión a internet.