Enviaments recents

  • Hybrid analog-digital transmit beamforming for spectrum sharing satellite-terrestrial systems 

    Vazquez, Miguel Angel; Blanco, Luis; Artiga Campos, Xavier; Pérez Neira, Ana Isabel (Institute of Electrical and Electronics Engineers (IEEE), 2016)
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    This paper deals with the problem of hybrid analog-digital transmit beamforming under spectrum sharing constraints. Hybrid multiantenna architectures are ideal for high throughput wireless links, where full-digital solutions ...
  • On modeling channel selection in LTE-U as a repeated game 

    Pérez Romero, Jordi; Sallent Roig, José Oriol; Ahmadi, H.; Macaluso, I. (Institute of Electrical and Electronics Engineers (IEEE), 2016)
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    This paper addresses the channel selection problem for Long Term Evolution Unlicensed (LTE-U). Channel selection is a frequency-domain mechanism that facilitates the coexistence of multiple networks sharing the unlicensed ...
  • Network architecture and essential features for 5G: the SESAME project approach 

    Goratti, Leonardo; Costa, Cristina E.; Pérez Romero, Jordi; Sallent Roig, José Oriol; Ruiz, Cristina; Betzler, August; Sayyad Khodashenas, Pouria; Vahid, Seiamak; Nasr, Karim; Abubakar, Babangida; Whitehead, Alan; Belesioti, Maria; Chochliouros, Ioannis (Springer, 2016)
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    The outstanding and continuous growth of the request of mobile broadband Internet access is creating the unprecedented need to rethink most of the design paradigms of the mobile network. Such trend is accompanied by ...
  • Distributed multivariate regression with unknown noise covariance in the presence of outliers: an MDL approach 

    López Valcarce, Roberto; Romero Gonzalez, Daniel; Sala Álvarez, José; Pagès Zamora, Alba Maria (Institute of Electrical and Electronics Engineers (IEEE), 2016)
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    We consider the problem of estimating the coefficients in a multivariable linear model by means of a wireless sensor network which may be affected by anomalous measurements. The noise covariance matrices at the different ...
  • Novel formulation of coefficients of low-pass prototype filter for the design of fourelement planar filtering antenna array 

    Kufa, Martin; Raida, Zbynek; Mateu Mateu, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2015)
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    The paper is focused on a formulation of a new coefficient of the low-pass prototype filter for the design of a four-element filtering antenna array. Due to the new gicoefficients, we can comfortably and easily control a ...
  • Distributed AOA-based source positioning in NLOS with sensor networks 

    Giménez Febrer, Pedro Juan; Pagès Zamora, Alba Maria; Silva Pereira, Silvana; López Valcarce, Roberto (Institute of Electrical and Electronics Engineers (IEEE), 2015)
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    This paper focuses on the problem of positioning a source using angle-of-arrival measurements taken by a wireless sensor network in which some of the nodes experience non lineof-sight (LOS) propagation conditions. In ...
  • Knowledge-based 5G radio access network planning and optimization 

    Pérez Romero, Jordi; Sallent Roig, José Oriol; Ferrús Ferré, Ramón Antonio; Agustí Comes, Ramon (2016)
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    Self-Organizing Network (SON) functionalities in forthcoming 5G systems stand as a promising field for the fertilization of Artificial Intelligence (AI) mechanisms. In this respect, this paper analyzes how SON functionalities ...
  • An outdoor TV band radio environment map for a manhattan like layout 

    Umbert Juliana, Anna; Casadevall Palacio, Fernando José; Rodríguez, Estuardo G. (2016)
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    This paper presents an outdoor Radio Environment Map (REM) for the television band applied to the UPCCampus Nord, which has a Manhattan like structure. A measurement campaign of the received TV signal in the streets and ...
  • Flexible capacity and traffic management for hybrid satellite-terrestrial mobile backhauling networks 

    Mendoza, Fabián; Ferrús Ferré, Ramón Antonio; Sallent Roig, José Oriol (2016)
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    The unique wide-scale geographical coverage offered by satellite networks, coupled with its inherent broadcast/multicast capabilities and highly reliable connectivity, anticipates new opportunities for the integration of ...

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