Listar GI-GTEC - Artigos por autor "Fresnedo, Óscar"

Mostrando ítems 21-24 de 24

    • Transmission of Spatio-Temporal Correlated Sources Over Fading Multiple Access Channels With DQLC Mappings 

      Fresnedo, Óscar; Suárez-Casal, Pedro; Castedo, Luis (Institute of Electrical and Electronics Engineers, 2019-08)
      [Abstract]: The design of zero-delay Joint Source-Channel Coding (JSCC) schemes for the transmission of correlated information over fading Multiple Access Channels (MACs) is an interesting problem for many communication ...

    • Transmission of Still Images Using Low-Complexity Analog Joint Source-Channel Coding 

      Balsa, José; Domínguez-Bolaño, Tomás; Fresnedo, Óscar; García-Naya, José A.; Castedo, Luis (M D P I AG, 2019-07-03)
      [Abstract] An analog joint source-channel coding (JSCC) system designed for the transmission of still images is proposed and its performance is compared to that of two digital alternatives which differ in the source encoding ...

    • User Grouping for the Uplink of Multiuser Hybrid mmWave MIMO 

      Pérez-Adán, Darian; Fresnedo, Óscar; González-Coma, José P.; Castedo, Luis (Institute of Electrical and Electronics Engineers, 2020-03-16)
      [Abstract] Hybrid analog/digital schemes for precoding/combining have proved to be a low-complexity and/or low-power strategy to obtain reasonable beamforming gains in multiuser millimeter-wave (mmWave) multiple-input ...

    • Wideband User Grouping for Uplink Multiuser mmWave MIMO Systems With Hybrid Combining 

      Pérez-Adán, Darian; Fresnedo, Óscar; González-Coma, José P.; Castedo, Luis (Institute of Electrical and Electronics Engineers, 2021-03-10)
      [Abstract] Analog-digital hybrid precoding and combining schemes constitute an interesting approach to millimeter-wave (mmWave) multiple-input multiple-output (MIMO) systems due to the low hardware complexity and/or low ...