Recent Submissions

  • Design and optimization of metro-access networks supporting 5G services 

    Sarmiento Hernández, Samael (Universitat Politècnica de Catalunya, 2020-03-26)
    Doctoral thesis
    Restricted access - confidentiality agreement
    The Internet data traffic constant growth caused by the popularization of cloud services, mobile and social networks, demand changes to the networks in order to enable scalable growth in traffic volume, while supporting a ...
  • Polar coding for the wiretap broadcast channel 

    Olmo Alòs, Jaume del (Universitat Politècnica de Catalunya, 2019-10-22)
    Doctoral thesis
    Open Access
    In the next era of communications, where heterogeneous, asynchronous and ultra-low latency networks are drawn on the horizon, classical cryptography might be inadequate due to the excessive cost of maintaining a public-key ...
  • GNSS Signal processing and spatial diversity exploitation 

    García Molina, José Antonio (Universitat Politècnica de Catalunya, 2020-02-14)
    Doctoral thesis
    Open Access
    Global Navigation Satellite Systems (GNSS) signals are broadly used for positioning, navigation and timing (PNT) in many different applications and use cases, Athough different PNT technologies are available, GNSS is ...
  • Efficient, end-to-end and self-supervised methods for speech processing and generation 

    Pascual de la Puente, Santiago (Universitat Politècnica de Catalunya, 2020-01-31)
    Doctoral thesis
    Open Access
    Deep learning has affected the speech processing and generation fields in many directions. First, end-to-end architectures allow the direct injection and synthesis of waveform samples. Secondly, the exploration of efficient ...
  • Real-time digital signal processing for new wavelength-to-the-user optical access networks 

    Ghasemi, Saeed (Universitat Politècnica de Catalunya, 2019-10-31)
    Doctoral thesis
    Open Access
    Nowadays, optical access networks provide high capacity to end users with growing availability of multimedia contents that can be streamed to fixed or mobile devices. In this regard, one of the most flexible and low-cost ...
  • Contribution to dimensionality reduction of digital predistorter behavioral models for RF power amplifier linearization 

    Pham, Thi Quynh Anh (Universitat Politècnica de Catalunya, 2019-12-18)
    Doctoral thesis
    Open Access
    The power efficiency and linearity of radio frequency (RF) power amplifiers (PAs) are critical in wireless communication systems. The main scope of PA designers is to build the RF PAs capable to maintain high efficiency ...
  • Cognition procedures for optical network design and optimization 

    Notivol Calleja, Luis David (Universitat Politècnica de Catalunya, 2019-12-09)
    Doctoral thesis
    Open Access
    Telecom carriers have to adapt their networks to accommodate a growing volume of users, services and traffic. Thus, they have to search a continuous maximization of efficiency and reduction in costs. This thesis identifies ...
  • Advanced pixel selection and optimization algorithms for Persistent Scatterer Interferometry (PSI) 

    Zhao, Feng, 1992- (Universitat Politècnica de Catalunya, 2019-07-26)
    Doctoral thesis
    Open Access
    Ground deformation measurements can provide valuable information for minimization of associated loss and damage caused by natural and environmental hazards. As a kind of remote sensing technique, Persistent Scatterer ...
  • Atmospheric artifacts correction for InSAR using empirical model and numerical weather prediction models 

    Hu, Zhongbo (Universitat Politècnica de Catalunya, 2019-12-19)
    Doctoral thesis
    Open Access
    lnSAR has been proved its unprecedented ability and merits of monitoring ground deformation on large scale with centimeter to millimeter scale accuracy. However, several factors affect the reliability and accuracy of its ...
  • Study of early stages of Alzheimer's disease using magnetic resonance imaging 

    Casamitjana Díaz, Adrià (Universitat Politècnica de Catalunya, 2019-12-20)
    Doctoral thesis
    Open Access
    Alzheimer's disease (AD) is a neurodegenerative disorder that constitutes the most common dementia pathology. It represents a global epidemic that expands exponentially as the life expectancy increases with no yet useful ...
  • Nuevo método de detección espectral para sistemas multiportadoras basado en la radio cognitiva 

    Rojas Hernández, Miguel Ángel (Universitat Politècnica de Catalunya, 2019-11-20)
    Doctoral thesis
    Open Access
    Nowadays, the growing demand for frequency-free bands for new emerging wireless technologies and fixed frequency allocation policies in the use of the radio spectrum have resulted in a saturation of the radio frequency ...
  • Integrated IT and SDN Orchestration of multi-domain multi-layer transport networks 

    Mayoral López de Lerma, Arturo (Universitat Politècnica de Catalunya, 2019-07-25)
    Doctoral thesis
    Open Access
    Telecom operators networks' management and control remains partitioned by technology, equipment supplier and networking layer. In some segments, the network operations are highly costly due to the need of the individual, ...

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