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Ara es mostren els items 83-102 de 102

    • Rate optimization for RIS-aided mMTC networks in the finite blocklength regime 

      Liesegang Maria, Sergi; Zappone, Alessio; Muñoz Medina, Olga; Pascual Iserte, Antonio (2023-03)
      Article
      Accés obert
      Reconfigurable intelligent surfaces (RISs) have become a promising candidate for the development of future mobile systems. In the context of massive machine-type communications (mMTC), a RIS can be used to support the ...

    • Reconfigurable intelligent surfaces for receive spatial modulation in rank-deficient channels 

      Moreno Locubiche, Ainna Yue; Vidal Manzano, José; Pascual Iserte, Antonio; Muñoz Medina, Olga (Institute of Electrical and Electronics Engineers (IEEE), 2023)
      Text en actes de congrés
      Accés obert
      Receive spatial modulation (RSM) has been proposed as an effective transmission technology for next-generation wireless communications systems because of its reduced complexity and low energy consumption at the receiver ...

    • Resource allocation between feedback and forward links: impact on system performance and CSI 

      Sacristán Murga, Daniel; Pascual Iserte, Antonio; Tradacete, Pedro (2011)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      The performance of multiple-input multiple-output (MIMO) communication systems is greatly increased by exploiting channel state information (CSI) for the transmitter design. In systems where channel reciprocity does not ...

    • Resource allocation between feedback and forward MIMO links and energy consumption 

      Sacristán Murga, Daniel; Pascual Iserte, Antonio; Gil Jiménez, Víctor P. (Institute of Electrical and Electronics Engineers (IEEE), 2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This work deals with the problem of radio resource allocation in a point-to-point multiple-input multiple-output (MIMO) communications system with feedback of channel state information. A total pool of radio resources ...

    • Resource allocation in multi-antenna MAC networks: FBMC vs OFDM 

      Payaró Llisterri, Miquel; Pascual Iserte, Antonio; García Armada, Ana; Sánchez Fernández, Matilde (2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This paper addresses the problem of resource allocation in a multiple access channel where several mobile terminals (MT’s) are transmitting simultaneously to a single receiving base station, all of them with multiple ...

    • Robust linear precoding for MSE minimization in MIMO broadcast systems with channel Gram matrix feedback 

      Sacristán Murga, Daniel; Payaró Llisterri, Miquel; Pascual Iserte, Antonio (IEEE, 2011)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      In this paper we deal with amultiple-input multiple-output (MIMO) multiuser broadcast channel (BC) featuring linear precoding at the transmitter. The design of such precoder is performed according to the channel state ...

    • Robust precoding for multi-user visible light communications with quantized channel information 

      Muñoz Medina, Olga; Pascual Iserte, Antonio; San Arranz, Guillermo (Multidisciplinary Digital Publishing Institute (MDPI), 2022-11-28)
      Article
      Accés obert
      In this paper, we address the design of multi-user multiple-input single-output (MU-MISO) precoders for indoor visible light communication (VLC) systems. The goal is to minimize the transmitted optical power per light ...

    • Sensor selection and distributed quantization for energy efficiency in massive MTC 

      Liesegang Maria, Sergi; Muñoz Medina, Olga; Pascual Iserte, Antonio (2021-12)
      Article
      Accés obert
      This paper presents an estimation approach within the framework of uplink massive machine-type-communications (mMTC) that considers the energy limitations of the devices. We focus on a scenario where a group of sensors ...

    • Simultaneous wireless information and power transfer in multiuser MIMO systems 

      Rubio López, Javier; Pascual Iserte, Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this paper, we focus on a broadcast multiuser multiple-input multiple-output (MIMO) system in a network with short links. In this scenario we consider that some terminals harvest power and, thus, recharge their ...

    • Stochastic geometry analysis and design of wireless powered MTC networks 

      Liesegang Maria, Sergi; Muñoz Medina, Olga; Pascual Iserte, Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Text en actes de congrés
      Accés obert
      Machine-type-communications (MTC) are being crucial in the development of next generation mobile networks. Given that MTC devices are usually battery constrained, wireless power transfer (WPT) and energy harvesting (EH) ...

    • Stochastic resource allocation with a backhaul constraint for the uplink 

      Rubio López, Javier; Muñoz Medina, Olga; Pascual Iserte, Antonio; Vidal Manzano, José (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Text en actes de congrés
      Accés obert
      We propose a novel stochastic radio resource alloca- tion strategy for the uplink that achieves long-term fairness in terms of similar bitrates considering backhaul and air-interface capacity limitations. We focus on a ...

    • SWIPT techniques for multiuser MIMO broadcast systems 

      Rubio López, Javier; Pascual Iserte, Antonio; Perez Palomar, Daniel; Goldsmith, Andrea (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Text en actes de congrés
      Accés obert
      In this paper, we present an approach to solve the nonconvex optimization problem that arises when designing the transmit covariance matrices in multiuser multiple-input multiple-output (MIMO) broadcast networks implementing ...

    • Técnicas de encaminamiento en redes ad-hoc basadas en criterios de potencia y batería 

      Martín Hermosín, Jesus; Pascual Iserte, Antonio (Escola Tècnica Superior d'Enginyers de Telecomunicació de Barcelona, 2005)
      Article
      Accés obert
      Las redes ad hoc están formadas únicamente por terminales móviles que funcionan a partir de baterías, es decir, no hay estaciones base. El consumo de energía es, por lo tanto, un punto muy importante ala hora de diseñar ...

    • Técnicas de procesado de señal basadas en múltiples antenas para redes inalámbricas con modulaciones OFDM 

      Palou Agostinho, Marcel; Pascual Iserte, Antonio (Escola Tècnica Superior d'Enginyers de Telecomunicació de Barcelona, 2004)
      Article
      Accés obert

    • Trade-off between feedback load for the channel state information and system performance in MIMO communications 

      Sacristán Murga, Daniel; Pascual Iserte, Antonio (2010-05)
      Comunicació de congrés
      Accés obert

    • Transceiver design framework for multiuser MIMO-OFDM broadcast systems with channel gram matrix feedback 

      Sacristán Murga, Daniel; Payaró Llisterri, Miquel; Pascual Iserte, Antonio (2012-05-17)
      Article
      Accés restringit per política de l'editorial
      This work considers a multiple-input multipleoutput (MIMO) orthogonal frequency division multiplexing based multiuser broadcast system with precoding at the transmitter and feedback of channel state information. A ...

    • 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, ...

    • User association for load balancing in heterogeneous networks powered with energy harvesting sources 

      Rubio López, Javier; Pascual Iserte, Antonio; Olmo Alòs, Jaume del; Vidal Manzano, José (2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      User association strategies for heterogeneous networks are proposed in order to balance the load among different base stations (BSs) and obtain higher downlink aggregate network utility based on per-user throughputs. ...

    • User association strategies in HetNets leading to rate balancing under energy constraints 

      Rubio López, Javier; Pascual Iserte, Antonio; Olmo Alòs, Jaume del; Vidal Manzano, José (2017-12)
      Article
      Accés obert
      This paper deals with the development of several strategies for associating users to base stations (BSs) in heterogeneous networks. These strategies are able to balance the rate among users and BSs and increase the overall ...

    • User grouping and resource allocation in multiuser MIMO systems under SWIPT 

      Rubio López, Javier; Pascual Iserte, Antonio (2019-06)
      Article
      Accés obert
      This paper considers a broadcast multiple-input multiple-output (MIMO) network with multiple users and simultaneous wireless information and power transfer (SWIPT). In this scenario, it is assumed that some users are able ...