Enviaments recents

  • Flexible coherent UDWDM-PON adapting dynamically to different bandwidths 

    Segarra Mullerat, Josep; Sales Zaragoza, Vicente; Prat Gomà, Josep Joan; Kazovsky, Leonid (2017)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Ultra-Dense Wavelength Division Multiplexing (UDWDM) is a candidate for future Passive Optical Networks (PONs) to sustain the increase of access traffic, providing enhanced capacity with point-to-point logical connections ...
  • Dimensioning OLT architectures for UDWDM-PONs employing coherent transceivers 

    Segarra Mullerat, Josep; Sales Zaragoza, Vicente; Polo Querol, Víctor; Prat Gomà, Josep Joan (Institute of Electrical and Electronics Engineers (IEEE), 2015)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Ultra-Dense Wavelength Division Multiplexing (UDWDM) is a new method for access PON, introducing the wavelength-to-the-user concept. The main technology will be a cost-effective coherent detection scheme providing low-cost ...
  • Cost-effective active learning for melanoma segmentation 

    Górriz, Marc; Giró Nieto, Xavier; Carlier, Axel; Faure, Emmanuel (2017)
    Comunicació de congrés
    Accés obert
    We propose a novel Active Learning framework capable to train effectively a convolutional neural network for semantic segmentation of medical imaging, with a limited amount of training labeled data. Our contribution is a ...
  • Using static connections to improve elastic optical networks performance 

    Comellas Colomé, Jaume; Vicario, L.; Junyent Giralt, Gabriel (Optical Society of American (OSA), 2017)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Network resources are poorly used in Elastic Optical Networks under dynamic traffic conditions. A hybrid scheme where some resources are statically allocated and the remaining ones are devoted to dynamic traffic, is proposed ...
  • Performance comparison of up-link and down-link techniques under DUDe strategy for heterogeneous networks 

    Wang, Hui; García Lozano, Mario; Mutafungwa, Edward; Yin, Xuefeng; Ruiz Boqué, Sílvia (2017)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    This paper provides new insights about the performance of Down-link and Up-link Decoupling (DUDe) when compared with Cell Range Expansion (CRE) combined with enhanced Inter-Cell Interference Coordination (eICIC). Instead ...
  • An improved dynamic wavelength assignment in statistical UDWDM-PONs 

    Sales Zaragoza, Vicente; Segarra Mullerat, Josep; Prat Gomà, Josep Joan (Institute of Electrical and Electronics Engineers (IEEE), 2015)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Dynamic wavelength assignment (DWA) is investigated for managing ultra-dense wavelength division multiplexing-passive optical networks (UDWDM-PONs). The optical network units (ONUs) own lasers under limited thermal tunability ...
  • Non parametric coding of speech by means of a MLP with hints 

    Hernández, G; Monte Moreno, Enrique; Mariño Acebal, José Bernardo (Springer, 1997)
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    This paper presents a non parametric compression system which makes use of the fact that a MLP has an internal representation of the data in the hidden layer. The system that we present makes a compression by using 4 or 8 ...
  • Modelling approach used in the real time emulator of the rainbow demostrator 

    Díaz Romero, M. del Pilar; Olmos Bonafé, Juan José; Berberana, Ignacio; Casadevall Palacio, Fernando José (Institute of Electrical and Electronics Engineers (IEEE), 1997)
    Text en actes de congrés
    Accés obert
    An overview of the main characteristics of the real time emulator (RTE) to be implemented in the context of the Rainbow project is presented. First of all, the RTE functional description is shown in order to justify the ...
  • Experimental results for an SDMA mobile communication's antenna array system 

    Goldberg, Jason Matthew; Pagès Zamora, Alba Maria; Lagunas Hernandez, Miguel A.; Rodríguez Fonollosa, Javier; Vázquez Grau, Gregorio (Institute of Electrical and Electronics Engineers (IEEE), 1996)
    Text en actes de congrés
    Accés obert
    This paper presents experimental results for a SpatialDivision Multiple Access cellular mobile communicationssystem. The basestation antenna array testbedused to obtain the results is described in addition tosophisticated ...
  • Minimum PER user-energy profile for massive SIC receivers under an average energy constraint 

    Sala Álvarez, José; Rey Micolau, Francesc; Villares Piera, Nemesio J.; Molina Oliveras, Francesc (Institute of Electrical and Electronics Engineers (IEEE), 2017)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    Interference may pose a severe limitation to massive wireless multiple access unless the central receiver is endowed with strong multipacket reception capabilities. In that respect, Interference Cancellation (IC) has been ...
  • On the implementation of channel selection for LTE in unlicensed bands using Q-learning and game theory algorithms 

    Castañe, Anna; Pérez Romero, Jordi; Sallent Roig, José Oriol (Institute of Electrical and Electronics Engineers (IEEE), 2017)
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    Accés restringit per política de l'editorial
    The use of Long Term Evolution (LTE) in the unlicensed 5 GHz band, referred to as LTE-U or Licensed Assisted Access (LAA), is a promising enhancement to increase the capacity of LTE networks and meet the requirements of ...
  • A wind-lidar buoy for offshore wind measurements: first commissioning test-phase results 

    Gutiérrez Antuñano, Miguel Ángel; Tiana Alsina, Jordi; Rocadenbosch Burillo, Francisco; Sospedra, Joaquim; Aghabi, Rajai; González Marco, Daniel (Institute of Electrical and Electronics Engineers (IEEE), 2017)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    This paper presents the development of a new commercial floating lidar system aimed to measure the wind resource and other environmental variables at candidate wind farm locations. This work describes this new lidar system ...

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