Ara es mostren els items 21-40 de 65

    • Decentralized random energy allocation for massive non-orthogonal code-division multiple access 

      Molina Oliveras, Francesc; Villares Piera, Nemesio Javier; Rey Micolau, Francesc; Sala Álvarez, José (2019-10-07)
      Article
      Accés obert
      This work studies the spectral efficiency achievable when a very large number of terminals are connected simultaneously to a central node (uplink) through independent and identically-distributed flat-fading channels. ...
    • Energy and rate allocation for massive multiple access with interference cancelation 

      Molina Oliveras, Francesc; Sala Álvarez, José; Villares Piera, Nemesio Javier; Rey Micolau, Francesc (Institute of Electrical and Electronics Engineers (IEEE), 2022)
      Article
      Accés obert
      This article addresses the problem of energy and code allocation to many users accessing, under spreading-based nonorthogonal multiple access, a wireless node set up with a successive interference cancellation architecture ...
    • Examen 

      Monte Moreno, Enrique; Morros Rubió, Josep Ramon; Villares Piera, Nemesio Javier (Universitat Politècnica de Catalunya, 2020-01-20)
      Examen
      Accés restringit a la comunitat UPC
    • Examen Final 

      Villares Piera, Nemesio Javier; Ruiz Mirones, Javier; Mariño, J.; Monte Moreno, Enrique (Universitat Politècnica de Catalunya, 2014-01-15)
      Examen
      Accés restringit a la comunitat UPC
    • Examen Final 

      Monte Moreno, Enrique; Pérez Pueyo, Rosanna; Soneira Ferrando, M. José; Villares Piera, Nemesio Javier (Universitat Politècnica de Catalunya, 2021-01-19)
      Examen
      Accés restringit a la comunitat UPC
    • Examen Final 

      Nájar Martón, Montserrat; Pascual Iserte, Antonio; Villares Piera, Nemesio Javier (Universitat Politècnica de Catalunya, 2023-06-01)
      Examen
      Accés restringit a la comunitat UPC
    • Examen Final 

      Hernando, J.; Mariño Acebal, José Bernardo; Oliveras Vergés, Albert; Villares Piera, Nemesio Javier (Universitat Politècnica de Catalunya, 2015-06-16)
      Examen
      Accés restringit a la comunitat UPC
    • Examen Final 

      Oliveras Vergés, Albert; Mariño Acebal, José Bernardo; Hernando Pericás, Francisco Javier; Villares Piera, Nemesio Javier (Universitat Politècnica de Catalunya, 2014-06-10)
      Examen
      Accés restringit a la comunitat UPC
    • Examen Final 

      Hernando, J.; Mariño, J.; Monte Moreno, Enrique; Villares Piera, Nemesio Javier (Universitat Politècnica de Catalunya, 2014-01-08)
      Examen
      Accés restringit a la comunitat UPC
    • Examen Final 

      Esquerra Llucià, Ignasi; López Martínez, Carlos; Muñoz Medina, Olga; Vilaplana Besler, Verónica; Villares Piera, Nemesio Javier (Universitat Politècnica de Catalunya, 2021-06-03)
      Examen
      Accés restringit a la comunitat UPC
    • Examen Final 

      Monte Moreno, Enrique; Pérez Pueyo, Rosanna; Soneira Ferrando, M. José; Villares Piera, Nemesio Javier (Universitat Politècnica de Catalunya, 2022-01-14)
      Examen
      Accés restringit a la comunitat UPC
    • EXAMEN FINAL 

      Nájar Martón, Montserrat; Pascual Iserte, Antonio; Villares Piera, Nemesio Javier (Universitat Politècnica de Catalunya, 2022-05-30)
      Examen
      Accés restringit a la comunitat UPC
    • Feasibility study for a spacecraft navigation system relying on pulsar timing information 

      Sala Álvarez, José; Urruela Planas, Andreu; Villares Piera, Nemesio Javier; Estalella, R; Paredes, J M (2004-06)
      Report de recerca
      Accés obert
      Estudi de fiabilitat per un sistema de navegacio d'espai profund basat en referencies de radio-estrelles pulsants (pulsar).
    • Floating Doppler Wind Lidar motion simulator for horizontal wind speed measurement error assessment 

      Salcedo Bosch, Andreu; Farré Guarné, Joan; Sala Álvarez, José; Villares Piera, Nemesio Javier; Tanamachi, Robin; Rocadenbosch Burillo, Francisco (Institute of Electrical and Electronics Engineers (IEEE), 2021)
      Text en actes de congrés
      Accés obert
      This study presents a wind retrieval simulator of a floating Doppler Wind Lidar (DWL) with 6 Degrees of Freedom (DoF) motion. The simulator considers a continuous-wave conical-scanning floating DWL which retrieves the wind ...
    • Frequency-domain GLR detection of a second-order cyclostationary signal over fading channels 

      Riba Sagarra, Jaume; Font Segura, Josep; Villares Piera, Nemesio Javier; Vázquez Grau, Gregorio (2014-04-01)
      Article
      Accés obert
      Cyclostationary processes exhibit a form of frequency diversity. Based on that, we show that a digital waveform with symbol period T can be asymptotically represented as a rank-1 frequency-domain vector process which ...
    • Frequency-domain GLR detection of cyclostationary signals in frequency-selective channels 

      Font Segura, Josep; Riba Sagarra, Jaume; Villares Piera, Nemesio Javier; Vázquez Grau, Gregorio (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Text en actes de congrés
      Accés obert
      The frequency diversity exhibited by cyclostationary signals is exploited in this paper. A novel rank-1 frequency-domain representation of a digital waveform is proposed to address the generalized likelihood ratio (GLR) ...
    • Informe final. Demostrador de serveis Galileo per Catalunya 

      Villares Piera, Nemesio Javier; Calvo Muntaner, Eduard; Carlavilla Márquez, Màxim; Lamarca Orozco, M. Meritxell; López Salcedo, José Antonio; Rey Micolau, Francesc; Riba Sagarra, Jaume; Sala Álvarez, José; Vázquez Grau, Gregorio (2007-09-25)
      Report de recerca
      Accés restringit per acord de confidencialitat
    • Informe Número 1: Projecte SETRAM 

      Sala Álvarez, José; Rey Micolau, Francesc; Riba Sagarra, Jaume; Villares Piera, Nemesio Javier; Lamarca Orozco, M. Meritxell; Vázquez Grau, Gregorio (2008-10-01)
      Report de recerca
      Accés restringit per acord de confidencialitat
      L’objectiu del projecte SETRAM és l’especificació d’algorismes de classificació no supervisada d’informació de mobilitat d’usuaris a partir de dades de posició proporcionades per la xarxa mòbil i/o satèl.lit. En el projecte ...
    • Interference power recycling in two-scale ad hoc wireless networks 

      Villares Piera, Nemesio Javier; Sala Álvarez, José; Rey Micolau, Francesc (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Text en actes de congrés
      Accés obert
      A two-scale ad hoc wireless network is envisaged in which the interference power generated in long-range connections is recycled by the surrounding wireless nodes in order to support their own short-range communications. ...
    • Joint energy and rate allocation for successive interference cancellation in the finite blocklength regime 

      Molina Oliveras, Francesc; Sala Álvarez, José; Villares Piera, Nemesio Javier; Rey Micolau, Francesc (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Comunicació de congrés
      Accés obert
      This work addresses the optimization of the network spectral efficiency (SE) under successive interference cancellation (SIC) at a given blocklength n. We adopt a proof-of-concept satellite scenario where network users can ...