Virtual network provisioning over flexible optical transport infrastructure 

    Pagès Cruz, Albert (Fecha de defensa: 2014-12-16)

    Current transport network owners are focused on offering services on top of the infrastructures they own, while end users have no control over them. Traditionally, this has been their business model, as the cost of building ...

    Visual object analysis using regions and local features 

    Ventura Royo, Carles (Fecha de defensa: 2016-07-08)

    The first part of this dissertation focuses on an analysis of the spatial context in semantic image segmentation. First, we review how spatial context has been tackled in the literature by local features and spatial ...

    Voice source characterization for prosodic and spectral manipulation 

    Pérez Mayos, Javier (Fecha de defensa: 2012-07-03)

    The objective of this dissertation is to study and develop techniques to decompose the speech signal into its two main components: voice source and vocal tract. Our main efforts are on the glottal pulse analysis and ...

    WDM/TDM PON bidirectional networks single-fiber/wavelength RSOA-based ONUs layer 1/2 optimization 

    López Pastor, Eduardo Tommy (Fecha de defensa: 2013-09-12)

    This Thesis proposes the design and the optimization of a hybrid WDM/TDM PON at the L1 (PHY) and L2 (MAC) layers, in terms of minimum deployment cost and enhanced performance for Greenfield NGPON. The particular case of ...

    Wideband cognitive radio: monitoring, detection and sparse noise subspace communication 

    Font Segura, Josep (Fecha de defensa: 2014-07-24)

    We are surrounded by electronic devices that take advantage of wireless technologies, from our computer mice, which require little amounts of information, to our cellphones, which demand increasingly higher data rates. ...

    Wireless sensors embedded in high permittivity lossy media 

    González López, Giselle (Fecha de defensa: 2021-06-29)

    The design of wireless sensors for operation embedded in a medium with high losses creates a series of additional constraints that should be taken into consideration at design stage to enhance sensor performance. In such ...

    Zero-touch service orchestration in 5G and beyond mobile networks 

    Dalgkitsis, Anestis (Fecha de defensa: 2023-11-07)

    (English) The expeditious growth and development of Beyond-5G and 6G networks inaugurated a new sector in the research of cellular networking. Automation and scaling are now considered a necessity to cope with the anticipated ...