Now showing items 1-12 of 64

    • A model for a multiresolution time series database system 

      Llusà Serra, Aleix; Escobet Canal, Teresa; Vila Marta, Sebastià (WSEAS Press, 2013)
      Conference report
      Open Access
      In this paper we propose a model for multiresolution time series database management systems. Thismodel stores compactly a time series and manages consistently its temporal dimension. This is achieved byextracting different ...
    • A survey on modulation techniques in molecular communication via diffusion 

      Kuran, Mehmet Sükrü; Yilmaz, Hüseyin Birkan; Demirkol, Ilker Seyfettin; Farsad, Nariman; Goldsmith, Andrea (Institute of Electrical and Electronics Engineers (IEEE), 2020-12-31)
      Article
      Open Access
      This survey paper focuses on modulation aspects of molecular communication, an emerging field focused on building biologically-inspired systems that embed data within chemical signals. The primary challenges in designing ...
    • Dynamic buffer sizing and pacing as enablers of 5G low-latency services 

      Irazabal Bengoa, Mikel; López Aguilera, M. Elena; Demirkol, Ilker Seyfettin; Nikaein, Navid (2020-08-17)
      Article
      Open Access
      3GPP standards organization is performing an impressive effort trying to reach sub-millisecond latencies for 5G. However, such efforts may become fruitless if exogenously generated delays at transport layer are not considered. ...
    • Superregeneration revisited: from principles to current applications 

      Palà Schönwälder, Pere; Bonet Dalmau, Jordi; Águila López, Francisco del; Moncunill Geniz, Francesc Xavier; Giralt Mas, Ma. Rosa (2020-02-01)
      Article
      Open Access
      Wireless communications play a central role in our modern connected lives; at the same time, they constitute a very broad and deep area of research. The elements that make wireless communications possible are a transmitter, ...
    • Signal and noise power spectra in superregenerative oscillators 

      Bonet Dalmau, Jordi; Palà Schönwälder, Pere; Moncunill Geniz, Francesc Xavier; Águila López, Francisco del; Giralt Mas, Ma. Rosa (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Conference lecture
      Open Access
      This paper presents a method to quantify noise in superregenerative oscillators. A frequency domain technique, originally intended to determine the signal response, can also be used to determine the noise response. This ...
    • An interdisciplinary approach to motivate students to learn digital systems and computing engineering 

      Tarres Puertas, Marta Isabel; López Riera, Alexis; Palà Schönwälder, Pere; Vila Marta, Sebastià (Tempus Publications, 2019-03-01)
      Article
      Restricted access - publisher's policy
      We report a new learning approach in collaborative learning-by doing, real-world team-based project in two ICT courses: DigitalSystems and Computing Engineering, conducted at Universitat Polite`cnica de Catalunya. Data ...
    • Optimal batch scheduling of a multiproduct dairy process using a combined optimization/constraint programming approach 

      Escobet Canal, Teresa; Puig Cayuela, Vicenç; Quevedo Casín, Joseba Jokin; Palà Schönwälder, Pere; Romera Formiguera, Juli; Adelman, Winfried (Pergamon Press, 2019-03-08)
      Article
      Open Access
      This paper presents the optimal batch scheduling of a multi-product dairy process using an approach that combines optimization and constraint programming techniques. A suitable model describing the subprocesses and production ...
    • Creació de materials docents per assignatures de telecomunicacions amb eines informàtiques de fàcil utilització 

      Giralt Mas, Ma. Rosa; Águila López, Francisco del (Universitat de Barcelona. Edicions i Publicacions, 2006)
      Conference report
      Open Access
      Seguint l’enfocament de l’Espai Europeu d’Educació Superior (EEES), on es valora l’aprenentatge cooperatiu i basat en projectes, es troba interessant disposar de materials docents, per al treball individual o col·lectiu, ...
    • An effective strategy of real-time vision-based control for a Stewart platform 

      Rossell Garriga, Josep Maria; Vicente Rodrigo, Jesús; Rubió Massegú, Josep; Barcons Xixons, Víctor (2018)
      Conference report
      Open Access
      A Stewart platform is a kind of parallel robot which can be used for a wide variety of technological and industrial applications. In this paper, a Stewart platform designed and assembled at the Universitat Polit`ecnica de ...
    • Monitoring and optimal management approaches to reduce water and energy consumption in milk processing processes 

      Quevedo Casín, Joseba Jokin; Puig Cayuela, Vicenç; Escobet Canal, Teresa; Palà Schönwälder, Pere (2017)
      Conference report
      Open Access
      This paper proposes a methodology for the monitoring and optimal management of milk processing processes to reduce water and energy consumption. First, the key variables that should be measured to characterize the water/energy ...
    • A discrete-time approach to the steady-state and stability analysis of distributed nonlinear autonomous circuits 

      Bonet Dalmau, Jordi; Palà Schönwälder, Pere; Miró Sans, Joan Maria (Institute of Electrical and Electronics Engineers (IEEE), 1998)
      Conference report
      Open Access
      We present a direct method for the steady-state and stability analysis of autonomous circuits with transmission lines and generic nonlinear elements. With the discretization of the equations that describe the circuit in ...
    • A discrete-time technique for the steady-state analysis of nonlinear class-E amplifiers 

      Águila López, Francisco del; Palà Schönwälder, Pere; Molina Gaudó, Pilar; Mediano Heredia, Arturo (Institute of Electrical and Electronics Engineers (IEEE), 2007-06-11)
      Article
      Open Access
      Switched circuits are widely used, particularly for power electronic applications in which efficiency is important. Of these applications, the class-E amplifier has been given particular attention, since it is theoretically ...