Ara es mostren els items 1-14 de 14

    • Analysis of prediction diversity TCM-MPSK and postdetection diversity TCM-MDPSK systems on a Rayleigh fading channel 

      Femenias Nadal, Guillem; Agustí Comes, Ramon (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1995-02)
      Article
      Accés obert
      In this paper, the bit error rate (BER) performance of predetection diversity trellis coded multilevel phase shift keying (TCM-MPSK) and postdetection diversity trellis coded multilevel differential phase shift keying ...
    • Desarrollo de un modem Fh- TCM-8 DPSK basado en el TMS320C30 para comunicaciones móviles 

      Femenias Nadal, Guillem (1991)
      Text en actes de congrés
      Accés obert
      This paper describes the real-time all-digital implementation of a FDMA/TDMA Slow Frcquency Hopping-Trellis Coded 8DPSK modem for operation in narrow band indoor mobile radio environments. The modem architecture as well ...
    • Design and implementation of a wide-band real-time mobile channel emulator 

      Olmos Bonafé, Juan José; Gelonch Bosch, Antonio José; Casadevall Palacio, Fernando José; Femenias Nadal, Guillem (1999-05)
      Article
      Accés obert
      A new wide-band mobile channel emulator for the CODIT project is designed and implemented. The UMTS code-division testbed (CODIT R2020) is a research project within the European RACE-II program set up by the Commission of ...
    • Design and implementation of a wide-band real-time mobile channel emulator 

      Olmos Bonafé, Juan José; Gelonch Bosch, Antonio José; Casadevall Palacio, Fernando José; Femenias Nadal, Guillem (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1999-05)
      Article
      Accés obert
      A new wide-band mobile channel emulator for the CODIT project is designed and implemented. The UMTS code-division testbed (CODIT R2020) is a research project within the European RACE-II program set up by the Commission of ...
    • Downlink scheduling and resource allocation for 5G MIMO-multicarrier: OFDM vs FBMC/OQAM 

      Femenias Nadal, Guillem; Riera Palou, Felip; Mestre, Xavier; Olmos Bonafé, Juan José (Institute of Electrical and Electronics Engineers (IEEE), 2017-07-20)
      Article
      Accés obert
      OAPA The definition of the next generation of wireless communications, so-called 5G networks, is currently underway. Among many technical decisions, one that is particularly fundamental is the choice of the physical layer ...
    • Enhancing cell-free massive MIMO networks through LEO satellite integration 

      Riera Palou, Felip; Femenias Nadal, Guillem; Caus López, Màrius; Shaat, Musbah; García Morales, Jan; Pérez Neira, Ana Isabel (Institute of Electrical and Electronics Engineers (IEEE), 2021)
      Text en actes de congrés
      Accés obert
      This paper proposes a hybrid network architecture combining a cell-free Massive MIMO terrestrial layout with a low Earth orbit satellite segment jointly targeting the maximization of the minimum per-user rate in the coverage ...
    • Frequency-hopping trellis-coded 8-DPSK for indoor communications 

      Agustí Comes, Ramon; Femenias Nadal, Guillem (Institute of Electrical and Electronics Engineers (IEEE), 1991)
      Text en actes de congrés
      Accés obert
      A TDMA (time-division multiple-access) slow frequency hopping-trellis-coded 8-DPSK (differential phase-shift keying) scheme is proposed for indoor mobile radio communications. In order to assess the performance of this ...
    • Joint frequency assignment and flow control for hybrid terrestrial-satellite wireless backhauling network 

      Shaat, Musbah; Pérez Neira, Ana Isabel; Femenias Nadal, Guillem; Riera Palou, Felip (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this paper, we investigate the problem of cross-layer design of the link scheduling, frequency assignment and flow control in hybrid terrestrial-satellite wireless backhauling networks. Considering network limitations ...
    • Performance of trellis-coded 8-DPSK modulation with co-channel interference in land mobile radio channels 

      Femenias Nadal, Guillem; Agustí Comes, Ramon (Institute of Electrical and Electronics Engineers (IEEE), 1989)
      Text en actes de congrés
      Accés obert
      The BER (bit error rate) performance of uncoded 4-DPSK (differential phase shift keying) and coded 8-DPSK (with 8 and 16 state codes) modulation schemes have been studied. A Rayleigh mobile channel and the presence of ...
    • Scalable cell-free massive MIMO networks with LEO satellite support 

      Riera Palou, Felip; Femenias Nadal, Guillem; Caus López, Màrius; Shaat, Musbah; Pérez Neira, Ana Isabel (Institute of Electrical and Electronics Engineers (IEEE), 2022-04-01)
      Article
      Accés obert
      This paper presents an integrated network architecture combining a cell-free massive multiple-input multiple-output (CF-M-MIMO) terrestrial layout with a low Earth orbit satellite segment where the scalability of the ...
    • Sistema TDMA-FH-TCM-8PSK en un entorno de comunicaciones móviles celulares de banda ancha 

      Femenias Nadal, Guillem (1991)
      Text en actes de congrés
      Accés obert
      In this paper we propase a TOMA Slow Frequency Hopping-Trellis Coded BPSK scheme for wideband cellular mobile communications. TCM wilh channel interleaving allows us to achieve coding gain without bandwith increase on ...
    • Sistemas TCM-8PSK en canales con interferencia intersimbolica 

      Femenias Nadal, Guillem (1991)
      Text en actes de congrés
      Accés obert
    • Switched-diversity trellis-coded 8-DPSK for mobile radio applications 

      Femenias Nadal, Guillem; Agustí Comes, Ramon (1990)
      Text en actes de congrés
      Accés obert
    • Trellis-coded 8-DPSK with postdetection combining diversity for digital land mobile radio 

      Femenias Nadal, Guillem; Agustí Comes, Ramon (Institute of Electrical and Electronics Engineers (IEEE), 1991)
      Text en actes de congrés
      Accés obert
      The performance of rate 2/3 postdetection combining diversity TCM-8DPSK systems is analyzed. A simulated Rayleigh mobile radio channel and the presence of cochannel interferers are assumed. Only the case where an ideal ...