Exploració per autor "Femenias Nadal, Guillem"

Ara es mostren els items 6-14 de 14

    • 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)
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      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)
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      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)
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      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)
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      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)
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      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)
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      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)
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    • Switched-diversity trellis-coded 8-DPSK for mobile radio applications 

      Femenias Nadal, Guillem; Agustí Comes, Ramon (1990)
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    • 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)
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      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 ...