Mostrando ítems 61-80 de 114

    Scalability and robustness in software-defined networking (SDN) 

    Jiménez Agudelo, Yury Andrea (Fecha de defensa: 2016-07-06)

    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 (Fecha de defensa: 2016-05-13)

    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 (Fecha de defensa: 2016-07-22)

    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 (Fecha de defensa: 2016-02-03)

    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 (Fecha de defensa: 2016-02-05)

    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 (Fecha de defensa: 2016-02-10)

    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 (Fecha de defensa: 2016-04-22)

    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 ...

    Contributions to the algorithms and methodologies for virtual infrastructure provisioning 

    Ferrer Riera, Jordi (Fecha de defensa: 2016-01-20)

    Virtualization is defined as the process consisting of building a virtual resource on top of one or several physical resources, depending on the selected paradigm: aggregation or partitioning. From the net- working ...

    Improvements to end-to-end performance of low-power wireless networks 

    Betzler, August (Fecha de defensa: 2015-07-07)

    Over the last decades, wireless technologies have become an important part of our daily lives. A plentitude of new types of networks based on wireless technologies have emerged, often replacing wired solutions. In this ...

    Handoff management for infotainment services over vehicular networks 

    Reñé Vicente, Sergi (Fecha de defensa: 2015-06-26)

    Intelligent Transportation Systems (ITS) has impulsed the vehicular communications at the present time. The vehicular communications field is a hot research topic and is attracting a great interest in the automotive industry ...

    Wake-up radio systems : design, development, performance evaluation and comparison to conventional medium access control protocols for wireless sensor networks 

    Oller i Bosch, Joaquim (Fecha de defensa: 2015-03-06)

    During the recent years, the research related to Wake-up Radio (WuR) systems has gained noticeable interest. In WuR systems, a node initiating a communication first sends a Wake-up Call (WuC) by means of its Wake-up ...

    Contribution to the improvement of the performance of wireless mesh networks providing real time services 

    Vázquez Rodas, Andrés Marcelo (Fecha de defensa: 2015-02-13)

    Nowadays, people expectations for ubiquitous connectivity is continuously growing. Cities are now moving towards the smart city paradigm. Electricity companies aims to become part of smart grids. Internet is no longer ...

    Certificate status information distribution and validation in vehicular networks 

    Hernández Gañán, Carlos (Fecha de defensa: 2013-09-04)

    Vehicular ad hoc networks (VANETs) are emerging as an functional technology for providing a wide range of applications to vehicles and passengers. Ensuring secure functioning is one of the prerequisites for deploying ...

    Contributions to the performance evaluation and improvement of the IPv6 routing protocol for low-power and lossy networks 

    Kermajani, Hamidreza (Fecha de defensa: 2014-09-03)

    Wireless Sensor Networks (WSNs) have become increasingly important. These networks comprise sensor and actuator nodes that enable intelligent monitoring and control applications in a wide spectrum of environments including ...

    New Architectures for ubiquitous networks : use and adaptation of internet protocols over wireless sensor networks 

    Ludovici, Alessandro (Fecha de defensa: 2014-07-07)

    This thesis focuses on the study of low-resource demanding protocols, communication techniques and software solutions to evaluate, optimise and implement Web service in WSNs. We start analysing the Web service architectures ...

    Traffic and mobility management in large-scale networks of small cells 

    Ferragut Martínez-Vara de Rey, Jaime (Fecha de defensa: 2014-07-29)

    The growth in user demand for higher mobile data rates is driving Mobile Network Operators (MNOs) and network infrastructure vendors towards the adoption of innovative solutions in areas that span from physical layer ...

    Privacy protection of user profiles in personalized information systems 

    Parra Arnau, Javier (Fecha de defensa: 2013-12-02)

    In recent times we are witnessing the emergence of a wide variety of information systems that tailor the information-exchange functionality to meet the specific interests of their users. Most of these personalized information ...

    On codes for traceability schemes: constructions and bounds 

    Moreira Sánchez, José (Fecha de defensa: 2013-11-13)

    A traceability or fingerprinting scheme is a cryptographic scheme that facilitates the identification of the source of leaked information. In a fingerprinting setting, a distributor delivers copies of a given content to a ...

    Resource management research in ethernet passive optical networks 

    Garfias Hernández, Paola (Fecha de defensa: 2013-11-25)

    The last decades, we have witnessed different phenomenology in the telecommunications sector. One of them is the widespread use of the Internet, which has brought a sharp increase in traffic, forcing suppliers to continuously ...

    Contributions to QoS and energy efficiency in wi-fi networks 

    Camps Mur, Daniel (Fecha de defensa: 2012-01-19)

    The Wi-Fi technology has been in the recent years fostering the proliferation of attractive mobile computing devices with broadband capabilities. Current Wi-Fi radios though severely impact the battery duration of these ...