Browsing by Author "García Armada, Ana"

Now showing items 1-10 of 10

    • A discrete bit loading algorithm for FBMC/OQAM 

      Caus López, Marius; Pérez Neira, Ana Isabel; García Armada, Ana (2012-06)
      Article
      Restricted access - publisher's policy
      In this letter the discrete rate maximization problem is investigated for FBMC/OQAM. The analysis reveals that if there is crosstalk certain bit allocations violate the power constraints. Aiming at ensuring the feasibility ...

    • Adaptive block Diagonalization and user scheduling with out of cluster interferenced 

      García Fernández, Juan José; García Armada, Ana; Rubio López, Javier; Pascual Iserte, Antonio; Font Bach, Oriol; Bartzoudis, Nikolaos (2014)
      Conference report
      Restricted access - publisher's policy
      Interference in a cellular network is one of the main impairments that needs to be overcome. Coordination among the Base Stations may enable the use of the interference to improve the transmission rate at the cost of ...

    • Asymptotic analysis of multiuser-MIMO networks with battery-constrained receivers 

      Rubio López, Javier; Pascual Iserte, Antonio; García Fernández, Juan José; García Armada, Ana; Font Bach, Oriol; Bartzoudis, Nikolaos (2014)
      Conference report
      Restricted access - publisher's policy
      In this paper, we present an asymptotic analysis of the behavior of a network where the mobile terminals are considered to be battery-powered devices provided with energy harvesting capabilities. The asymptotic analysis ...

    • Design of pre-coding and combining in hybrid analog-digital massive MIMO with phase noise 

      Corvaja, Roberto; García Armada, Ana; Vazquez, Miguel Angel; Pérez Neira, Ana Isabel (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
      Restricted access - confidentiality agreement
      The design of massive MIMO, especially at millimeter waves, requires a trade-off between cost and power consumption, balancing the complexity and the performance in terms of achievable rate. A recent trend in the design ...

    • Energy profiling of FPGA-based PHY-layer building blocks encountered in modern wireless communication systems 

      Bartzoudis, Nikolaos; Font Bach, Oriol; Payaró Llisterri, Miquel; Pascual Iserte, Antonio; Rubio López, Javier; García Fernández, Juan José; García Armada, Ana (2014)
      Conference lecture
      Restricted access - publisher's policy
      Characterizing the energy cost of different physical (PHY) layer building blocks is becoming increasingly important in modern cellular-based communications, considering the cross sector requirements for performance ...

    • Mutual information analysis of frequency packing schemes in multi-beam satellite systemswith phase noise 

      Bas, Joan; Caus López, Marius; Pérez Neira, Ana Isabel; Modenini, Andrea; Ebert, Johannes; García Armada, Ana (Curran, 2017)
      Conference report
      Restricted access - publisher's policy
      This paper analyzes frequency packing schemes applied to multibeam satellite systems. In order to simulate a realistic scenario we have taken into account the presence of co-channel interference and spectrum limitations. ...

    • Network-MIMO backhauling for QOS-constrained relay transmission 

      Vidal Manzano, José; Agustín de Dios, Adrián; Lagén Morancho, Sandra; Valera, Eduard; Muñoz Medina, Olga; García Armada, Ana; Sánchez Fernández, Matilde (2011)
      Conference report
      Restricted access - publisher's policy
      A relay station (RS)-based cellular system deployment is considered, where multiple base stations (BS) cooperate in the BS-RS in-band transmission for the downlink. With the joint optimization of the resources allocated ...

    • 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)
      Conference report
      Restricted access - publisher's policy
      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 ...

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

      Payaró Llisterri, Miquel; Pascual Iserte, Antonio; García Armada, Ana; Sánchez Fernández, Matilde (2011)
      Conference report
      Restricted access - publisher's policy
      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 ...

    • Scheduling and precoding in hybrid analog-digital multiantenna spectrum sharing systems 

      Vazquez, Miguel Angel; Pérez Neira, Ana Isabel; Corvaja, Roberto; García Armada, Ana; Lagunas Hernandez, Miguel A. (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
      Restricted access - publisher's policy
      This paper investigates scheduling and precoding techniques via hybrid analog-digital transmitters in mm-wave frequency bands. As in spectrum sharing sub-6GHz scenarios, the presence of non-intended receivers limits the ...