Enviaments recents

  • Contributions to optimal detection in OTDM and OCDMA optical receivers 

    Yazdani, Arash (Universitat Politècnica de Catalunya, 2016-07-07)
    Tesi
    Accés obert
    Recent developments in optical communication systems have increased the performance of optical networks. Low attenuation fiber optics, high spectral purity lasers and optical amplifiers, among others, are systems that have ...
  • Contribution to the design of VANET routing protocols for realistic urban environments 

    Urquiza Aguiar, Luis Felipe (Universitat Politècnica de Catalunya, 2016-04-05)
    Tesi
    Accés obert
    One of the main concerns of the cities' administration is mobility management. In Intelligent Transportation Systems (ITS), pedestrians, vehicles and public transportation systems could share information and react to any ...
  • Secure identity management in structured peer-to-peer (P2P) networks 

    Caubet Fernández, Juan (Universitat Politècnica de Catalunya, 2016-01-25)
    Tesi
    Accés obert
    Structured Peer-to-Peer (P2P) networks were proposed to solve routing problems of big distributed infrastructures. But the research community has been questioning their security for years. Most prior work in security ...
  • Scalability and robustness in software-defined networking (SDN) 

    Jiménez Agudelo, Yury Andrea (Universitat Politècnica de Catalunya, 2016-07-06)
    Tesi
    Accés obert
    The simplicity of Internet design has led to enormous growth and innovation. In recent decades several network technologies, services and applications have appeared, which demand specific network requirements for their ...
  • Contributions to interoperability, scalability and formalization of personal health systems 

    Brugués de la Torre, Albert (Universitat Politècnica de Catalunya, 2016-05-13)
    Tesi
    Accés obert
    The ageing of the world's population combined with unhealthy lifestyles are contributing to a major prevalence of chronic diseases. This scenario poses the challenge of providing good healthcare services to that people ...
  • Contributions to efficient and secure exchange of networked clinical data : the MOSAIC system 

    Lluch-Ariet, Magí (Universitat Politècnica de Catalunya, 2016-07-22)
    Tesi
    Accés obert
    The understanding of certain data often requires the collection of similar data from different places to be analysed and interpreted. Multi-agent systems (MAS), interoperability standards (DICOM, HL7 or EN13606) and ...
  • Topologías para la distribución de contenidos en redes de comunicación 

    Machado Sánchez, Sergio (Universitat Politècnica de Catalunya, 2016-02-03)
    Tesi
    Accés obert
    The peer-to-peer (P2P) overlay networks are distribution topologies that take advantage of the ability that their nodes have to forward the information that they receive. For the particular case of video transmission using ...
  • Individual verifiability in electronic voting 

    Guasch Castelló, Sandra (Universitat Politècnica de Catalunya, 2016-02-05)
    Tesi
    Accés obert
    This PhD Thesis is the fruit of the job of the author as a researcher at Scytl Secure Electronic Voting, as well as the collaboration with Paz Morillo, from the Department of Applied Mathematics at UPC and Alex Escala, PhD ...
  • Contributions to the routing of traffic flows in multi-hop IEEE 802.11 wireless networks 

    Catalán Cid, Miguel (Universitat Politècnica de Catalunya, 2016-02-10)
    Tesi
    Accés obert
    The IEEE 802.11 standard was not initially designed to provide multi-hop capabilities. Therefore, providing a proper traffic performance in Multi-Hop IEEE 802.11 Wireless Networks (MIWNs) becomes a significant challenge. ...
  • Contributions to provide a QoS-aware self-configured framework for video-streaming services over ad hoc networks 

    Mezher, Ahmad Mohamad (Universitat Politècnica de Catalunya, 2016-04-22)
    Tesi
    Accés obert
    Ad hoc networks have attracted much attention from the research community over the last years and important technical advances have risen as a consequence. These networks are foreseen as an important kind of next generation ...

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