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Ara es mostren els items 58-71 de 71

    • Receive antenna selection and hybrid precoding for receive spatial modulation in massive MIMO systems 

      Raafat Hosny Mohamed Fahm, Ahmed; Agustín de Dios, Adrián; Vidal Manzano, José (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Comunicació de congrés
      Accés obert
      Recently, a receive spatial modulation (RSM) for massive multiple-input-multiple-output operating in millimeter wave (mmWave) was introduced with the purpose of simplifying user terminal circuit by employing only one ...

    • Receive spatial modulation for massive MIMO systems 

      Raafat Hosny Mohamed Fahm, Ahmed; Agustín de Dios, Adrián; Vidal Manzano, José (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Text en actes de congrés
      Accés obert
      In this paper, we consider the downlink of a massive multiple-input-multiple-output (MIMO) single user transmission system operating in the millimeter wave outdoor narrowband channel environment. We propose a novel receive ...

    • Relay-assited transmission and radio resource management for wireless networks 

      Agustín de Dios, Adrián (Universitat Politècnica de Catalunya, 2008-01-01)
      Tesi
      Accés obert
      La transmisión asistida por relay o transmisión cooperativa es una nueva técnica de diversidad espacial donde aparece un elemento nuevo (un relay o un usuario cooperativo) en la tradicional transmisión punto a punto (fuente ...

    • Resource optimization in the decode-and-forward multiple relay-assisted channel 

      Vidal Manzano, José; Agustín de Dios, Adrián (2008)
      Text en actes de congrés
      Accés obert
      The half-duplex multiple relay-assisted channel is investigated, where the relays work under decode-and-forward (DF) in time/frequency orthogonal resources. Achievable rates are optimized with respect to the transmitted ...

    • Retrospective interference alignment for the 3-user MIMO interference channel with delayed CSIT 

      Torrellas Socastro, Marc; Agustín de Dios, Adrián; Vidal Manzano, José (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The degrees of freedom (DoF) of the 3-user multiple input multiple output interference channel (3-user MIMO IC) are investigated where there is delayed channel state information at the transmitters (dCSIT). We generalize ...

    • Retrospective interference alignment for the MIMO interference broadcast channel 

      Torrellas, Marc; Agustín de Dios, Adrián; Vidal, Josep (Institute of Electrical and Electronics Engineers (IEEE), 2015)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Retrospective Interference Alignment is a linear precoding strategy that seizes delayed channel state information at the transmitters (CSIT), improving the degrees of freedom (DoF) that can be achieved without CSIT for ...

    • Signal-timing offset compensation in dense TDD OFDM-based networks 

      Agustín de Dios, Adrián; Lagén Morancho, Sandra; Vidal Manzano, José (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Text en actes de congrés
      Accés obert
      Orthogonal Frequency Division Multiplexing (OFDM)-based networks rely on time synchronization to obtain their best performance. Time synchronization with neighboring nodes can be satisfied by increasing the cyclic prefix ...

    • Space-time front-ends for RAKE receivers in the FDD mode of UTRA 

      Vidal Manzano, José; Cabrera-Bean, Margarita; Agustín de Dios, Adrián (AMADEIA. Association Marocaine pour le Développement de l'Electrique, l'Electronique, l'Informatique et l'Automatique, 2000-01)
      Article
      Accés obert
      A unified and general vision of different space-time processors is presented. Many popular receivers can be accomodated, like V-RAKE receivers, weighted V-RAKE, or spatial narrowband beamforming. By making appropriate ...

    • State-of-the-art assessment of 5G mmWave communications 

      Agustín de Dios, Adrián; Vidal Manzano, José; Corre, Yoann; Gougeon, Gregory; Letourneux, Florian; Basavarajappa, Vedaprabhu; Bedia, Beatri; Tan, Yi (2016-04-30)
      Report de recerca
      Accés obert
      Main objective of the European 5Gwireless project, which is part of the H2020 Marie Slodowska- Curie ITN (Innovative Training Networks) program resides in the training and involvement of young researchers in the elaboration ...

    • Technoeconomic evaluation of cooperative relaying transmission techniques in OFDM cellular networks 

      Moral, Antolín; Vidal Manzano, José; Pérez, Jorge; Agustín de Dios, Adrián; Marina, Ninoslav; Host-Madsen, Anders (HINDAWI, 2011-02-27)
      Article
      Accés restringit per política de l'editorial
      We evaluate the costs in the deployment of a 4G relay-assisted network in the 2.6GHz band following a technoeconomic methodology that departs fromcell dimensioning based on spectral efficiency and outage capacity requirements. ...

    • The DoF of the 3-User (p, p+1) MIMO Interference Channel 

      Torrellas Socastro, Marc; Agustín de Dios, Adrián; Vidal Manzano, José; Muñoz Medina, Olga (2014-11-01)
      Article
      Accés restringit per política de l'editorial
      The degrees of freedom (DoF) of the 3-user multiple-input multiple-output (MIMO) interference channel (IC) with full channel state information and constant channel coefficients are investigated when (p, p + 1) antennas are ...

    • The TUCAN3G project: wireless technologies for isolated rural communities in developing countries based on 3G small-cell deployments 

      Martínez Fernández, Andrés; Vidal Manzano, José; Simó Reigadas, Javier; Prieto Egido, Ignacio; Agustín de Dios, Adrián; Paco Fernández, Juan; Rendón, Álvaro (2016-07-01)
      Article
      Accés obert
      Recent years have witnessed a massive penetration of cellular systems in developing countries. However, isolated rural areas (sparsely inhabited by low-income population) have been disregarded because classical access and ...

    • TROPIC-D21 Scenario and Requirements 

      Becvar, Zdenek; Vondra, Michal; Dolezal, Jakub; Mach, Pavel; Rohlik, Matej; Agustín de Dios, Adrián; Lagén Morancho, Sandra; Muñoz Medina, Olga; Pascual Iserte, Antonio; Torrellas Socastro, Marc; Vidal Manzano, José; Lobillo Vilela, Felicia; Juan, Ana; Puente, Miguel Angel; Simamora, Lamhot; Anugrahani, Melani; Kelana, Eka; Hariyanto, Hari; Ari Wibowo, Franciscus X.; Ludfy, Ahmad; Budiono, Karno; Nainggolan, Lesmin; Chandra, Lunel; Goldhammer, Mariana; de Marinis, Enrico; Gambetti, Fabrizio; Lo Presti, D.; Mei, Alessandro; Stefa, Julinda; Vivier, Guillaume; Sezginer, Serdar; Sarkiss, Mireille; Barbarossa, Sergio; di Lorenzo, Paolo; Sardellitti, Stefania; Baiocchi, Andrea (2013-07-22)
      Report de recerca
      Accés obert
      This deliverable defines general framework for consequent technical workpackages in TROPIC. First, scenarios from the business point of view are defined and further transformed to more technical representation. Then, ...

    • Wideband receive spatial modulation with time domain pre-equalizer for large MIMO systems 

      Raafat Hosny Mohamed Fahm, Ahmed; Agustín de Dios, Adrián; Vidal Manzano, José (2018)
      Text en actes de congrés
      Accés obert
      Receive spatial modulation (RSM) schemes are promising for massive multiple-input-multiple-output (MIMO) systems at millimeter wave (mmWave) bands because they require reduced complexity and low consumption hardware at the ...