Exploració per autor "Rey Micolau, Francesc"Més informacióMés informació

Ara es mostren els items 15-34 de 53

    • Channel-aware energy allocation for throughput maximization in massive low-rate multiple access 

      Molina Oliveras, Francesc; Sala Álvarez, José; Rey Micolau, Francesc; Villares Piera, Nemesio Javier (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Text en actes de congrés
      Accés obert
      A multiple access (MA) optimization technique for massive low-rate direct-sequence spread spectrum communications is analyzed in this work. A dense network of users transmitting at the same rate to a common central node ...

    • Correlation study between the access mark and the performance in project-based and standard courses 

      Bragós Bardia, Ramon; Aoun, Louay; Charosky Larrieu-Let, Guido; Bermejo Broto, Sandra; Rey Micolau, Francesc; Pegueroles Vallés, Josep R. (Universitat Politècnica de Catalunya, 2022-09)
      Text en actes de congrés
      Accés obert
      The access mark to engineering studies is often used as an a priori success estimator. In our institution, we have observed that the correlation of the access mark with the grades obtained in project-based courses (R=0.52) ...

    • Correlation study between the performance in different engineering courses and project-based courses 

      Bermejo Broto, Sandra; Bragós Bardia, Ramon; Rey Micolau, Francesc; Pegueroles Vallés, Josep R. (NTNU SEED, 2023)
      Comunicació de congrés
      Accés obert
      In a previous study, already published (Bragós, 2022), we analyzed the correlation between the University access mark to the engineering studies with the grades obtained in projectbased courses and in non-project-based ...

    • D1. Estudio de códigos PN para mejorar el ensanchado y la eficiencia espectral del sistema CDMA síncrono y asíncrono 

      Lamarca Orozco, M. Meritxell; Rey Micolau, Francesc; Riba Sagarra, Jaume; Sala Álvarez, José; Vázquez Grau, Gregorio; Villares Piera, Nemesio Javier (2008-11-10)
      Report de recerca
      Accés restringit per acord de confidencialitat

    • D2. Estructuras de detector multiusuario para CDMA síncrono y asíncrono 

      Lamarca Orozco, M. Meritxell; Rey Micolau, Francesc; Riba Sagarra, Jaume; Sala Álvarez, José; Vázquez Grau, Gregorio; Villares Piera, Nemesio Javier (2008-11-10)
      Report de recerca
      Accés restringit per acord de confidencialitat

    • D3. Sincronización robusta de frecuencia y fase para M-PSK sobre CDMA 

      Lamarca Orozco, M. Meritxell; Rey Micolau, Francesc; Riba Sagarra, Jaume; Sala Álvarez, José; Vázquez Grau, Gregorio; Villares Piera, Nemesio Javier (2008-11-10)
      Report de recerca
      Accés restringit per acord de confidencialitat

    • DA-GLRT burst detection and synchronization based on a chirp-like preamble 

      Rodríguez, E; Lamarca Orozco, M. Meritxell; López Salcedo, José Antonio; Rey Micolau, Francesc; Riba Sagarra, Jaume; Sala Álvarez, José; Vázquez Grau, Gregorio; Villares Piera, Nemesio Javier; Jalón, A (2008)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      A specific preamble for the tasks of signal detection and synchronization in burst digital communications is presented. The preamble resembles a chirp signal used in RADAR applications. Its main benefit is that it allows ...

    • 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. ...

    • Diversity in mobile communications for blind detection of block-coded modulations 

      Vázquez Grau, Gregorio; Rey Micolau, Francesc; Lamarca Orozco, M. Meritxell; Rodríguez Fonollosa, Javier (Institute of Electrical and Electronics Engineers (IEEE), 1999)
      Text en actes de congrés
      Accés obert
      Spatial, temporal, and frequency diversity structures are analyzed to address the blind equalization problem in the presence of time-variant frequency selective channels. The aim of the paper is to present equalization ...

    • 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 final de reavaluació, curs 2018-2019: enunciat i solucions genèriques 

      Gasull Llampallas, Antoni; Moreno Bilbao, M. Asunción; Sayrol Clols, Elisa; Rey Micolau, Francesc; Salavedra Molí, Josep; Vallverdú Bayés, Sisco (Universitat Politècnica de Catalunya, 2019-07-10)
      Examen
      Accés restringit a la comunitat UPC

    • Examen final del quadrimestre de tardor, curs 2013-2014: enunciat 

      Gasull Llampallas, Antoni; Moreno Bilbao, M. Asunción; Rey Micolau, Francesc; Salavedra Molí, Josep; Vallverdú Bayés, Sisco (Universitat Politècnica de Catalunya, 2014-01-10)
      Examen
      Accés restringit a la comunitat UPC

    • Examen final del quadrimestre de tardor, curs 2014-2015: enunciat 

      Gasull Llampallas, Antoni; Moreno Bilbao, M. Asunción; Pascual Iserte, Antonio; Rey Micolau, Francesc; Salavedra Molí, Josep; Vallverdú Bayés, Sisco (Universitat Politècnica de Catalunya, 2015-01-13)
      Examen
      Accés restringit a la comunitat UPC

    • Examen final del quadrimestre de tardor, curs 2017-2018: enunciat 

      Gasull Llampallas, Antoni; Moreno Bilbao, M. Asunción; Rey Micolau, Francesc; Sala Álvarez, José; Salavedra Molí, Josep; Sayrol Clols, Elisa; Vallverdú Bayés, Sisco (Universitat Politècnica de Catalunya, 2018-01-18)
      Examen
      Accés restringit a la comunitat UPC

    • Feedback-channel and adaptative mimo coded-modulations. 

      Rey Micolau, Francesc (Universitat Politècnica de Catalunya, 2006-05-12)
      Tesi
      Accés obert
      En els sistemes de comunicacions on el transmissor disposa de certa informació sobre l'estat del canal (CSI), es possible dissenyar esquemes lineals de precodificació que assignin la potència de manera òptima induint guanys ...

    • 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 ...

    • Joint synchronization and symbol detection in asynchronous DS-CDMA systems 

      Rey Micolau, Francesc; Vázquez Grau, Gregorio; Riba Sagarra, Jaume (Institute of Electrical and Electronics Engineers (IEEE), 2000)
      Text en actes de congrés
      Accés obert
      The design of accurate estimators which also consider the noise term in low SNR scenarios is paramount for achieving optimal solutions and obtaining precise symbol detectors. Particularly, this paper estimates the propagation ...