Ara es mostren els items 74-93 de 101

    • OFDM and FBMC Performance Comparison for Multistream MIMO Systems 

      Estella, Iñaki; Pascual Iserte, Antonio; Payaró Llisterri, Miquel (2010-06)
      Comunicació de congrés
      Accés obert
    • On the coordination of base stations in ultra dense cellular networks 

      Aravanis, Alexios; Muñoz Medina, Olga; Pascual Iserte, Antonio; di Renzo, Marco (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Text en actes de congrés
      Accés obert
      Ultra dense networks (UDNs) allow for efficient spatial reuse of the spectrum, giving rise to substantial capacity and power gains. However, recent findings have demonstrated that the reduction of inter-site distances after ...
    • Optimization of radio and computational resources for energy efficiency in latency-constrained application offloading 

      Muñoz Medina, Olga; Pascual Iserte, Antonio; Vidal Manzano, José (2015-10)
      Article
      Accés obert
      Providing femto access points (FAPs) with computational capabilities will allow (either total or partial) offloading of highly demanding applications from smartphones to the so-called femto-cloud. Such offloading promises ...
    • Performance comparison between FBMC and OFDM in MIMO systems under channel uncertainty 

      Payaró Llisterri, Miquel; Pascual Iserte, Antonio; Nájar Martón, Montserrat (2010)
      Text en actes de congrés
      Accés obert
    • Performance degradation of an OFDM-MIMO system with imperfect channel state information at the transmitter 

      Pascual Iserte, Antonio; Pérez Neira, Ana Isabel; Lagunas Hernandez, Miguel A. (2003)
      Text en actes de congrés
      Accés obert
      In this paper we analyze the performance degradation of a communications system combining the Orthogonal Frequency Division Multiplexing (OFDM) modulation with the simultaneous use of an array of antennas at both the ...
    • Performance of waterfilling-based schemes for interference cancellation in 4G networks 

      Pablo González, Mari Luz; García Armada, Ana; Sánchez Fernández, Matilde; Pascual Iserte, Antonio; Payaró Llisterri, Miquel (Institute of Electrical and Electronics Engineers (IEEE), 2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this work we consider the optimization of the power assigned to the user streams in a coordinated base station downlink environment with Orthogonal Frequency Division Modulation (OFDM). In this scenario the base stations ...
    • Precoding and feedback schemes for a MIMO backhaul link in the presence of interference 

      Sacristán Murga, Daniel; Pascual Iserte, Antonio (2010)
      Text en actes de congrés
      Accés obert
    • Preemption and QoS management algorithms for coordinated and uncoordinated base stations 

      Muñoz Medina, Olga; Pascual Iserte, Antonio; Baquero, Pau; Vidal Manzano, José (Institute of Electrical and Electronics Engineers (IEEE), 2011)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      This paper addresses the problem of resource allocation and quality of service (QoS) management in a downlink communication system where the users are allowed to be attached to and receive data from one or several ...
    • Prototyping processing-demanding physical layer systems featuring single or multi-antenna schemes 

      Font Bach, Oriol; Bartzoudis, Nikolaos; Pascual Iserte, Antonio; López Bueno, David (2011)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      In the past years numerous algorithms, schemes and techniques have been proposed, in order to improve the performance of the wireless multi-antenna communication systems. Real-time multi-antenna testbeds are offering ...
    • 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 ...
    • 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 ...