Now showing items 55-74 of 114

    Contributions to TOA-based location with wlan 

    Ciurana Adell, Marc (Date of defense: 2010-07-15)

    Location techniques that satisfy the requirements of advanced Location-Based Services (LBS) in environments where GPS fails are needed, therefore accurate indoor positioning is becoming increasingly important. This PhD ...

    Contributions to topology discovery, self-healing and VNF placement in software-defined and virtualized networks 

    Ochoa Aday, Leonardo (Date of defense: 2019-01-30)

    The evolution of information and communication technologies (e.g. cloud computing, the Internet of Things (IoT) and 5G, among others) has enabled a large market of applications and network services for a massive number of ...

    Contributions towards softwarization and energy saving in passive optical networks 

    Khalili, Hamzeh (Date of defense: 2018-09-20)

    Ths thesis is a result of contributions to optimize and improve the network management systme and power consumption in Passive Optical Network (PON). Passive Optical Network elements such as Optical Line Terminal (OLT) and ...

    Control de congestión multipunto en redes IP y ATM. Diseño de protocolos de transporte multipunto fiable 

    Solera Delgado, Marta (Date of defense: 2006-11-13)

    Las comunicaciones multipunto ofrecen, tanto a usuarios como a proveedores, mayor eficiencia, permitiendo desarrollar e implantar nuevos servicios. Para poder desplegarlos adecuadamente sobre la redes de comunicaciones, ...

    Control logic distribution trade-offs in software-defined wireless networks 

    Osman, Mohamad (Date of defense: 2022-10-07)

    The SDN (Software-Defined Networks) architecture separates the data and the control planes of the networks. It logically centralizes the control of a network in a central point that is an SDN controller, which acts as a ...

    Control strategy and predictive methods for performance and component lifetime enhancement in vehicle powertrain 

    Martín Prieto, Álvaro (Date of defense: 2023-04-26)

    (Enlish) In the past years, battery electric vehicles have been gaining market share. These vehicles are progressively seen as a viable option by customers of all kind. However, although manufacturers and research institutions ...

    Data analytics for mobile traffic in 5G networks using machine learning techniques 

    Trinh, Hoang Duy (Date of defense: 2020-06-10)

    This thesis collects the research works I pursued as Ph.D. candidate at the Universitat Politecnica de Catalunya (UPC). Most of the work has been accomplished at the Mobile Network Department Centre Tecnologic de ...

    Design and performance evaluation of smart dissemination of emergence messages in vehicular ad-hoc networks 

    Iza Paredes, Christian (Date of defense: 2018-07-12)

    The growing demand to improve road safety and optimize road traffic has generated great interest in vehicular ad-hoc network (VANETs). Serious traffic accidents can cause financial losses, physical disability, and even ...

    Design of secure mobile payment protocols for restricted connectivity scenarios 

    Téllez Isaac, Jesús Augusto (Date of defense: 2012-09-12)

    The emergence of mobile and wireless networks made posible the extensión of electronic commerce to a new area of research: mobile commerce called m-commerce, which includes mobile payment), that refers to any e-commerce ...

    Desing and Evaluation of Certificate Revocation Systems 

    Muñoz Tapia, José L. (José Luis) (Date of defense: 2003-11-26)

    Este trabajo presenta tanto el estado del arte como un análisis de los principales sistemas de revocación de certificados digitales. El hecho de comprender bien el mecanismo de revocación de un certificado es importante ...

    Diferenciación de servicios y mejora de la supervivencia en redes ad hoc conectadas a redes fijas 

    Domingo Aladrén, Mari Carmen (Date of defense: 2005-07-07)

    La comunicación entre redes ad hoc y redes basadas en infraestructura resulta esencial para poder extender Internet más allá de su alcance tradicional, a aquellas áreas hasta ahora inaccesibles, permitiendo la utilización ...

    Edge computing infrastructure for 5G networks: a placement optimization solution 

    Santoyo González, Alejandro (Date of defense: 2020-09-08)

    This thesis focuses on how to optimize the placement of the Edge Computing infrastructure for upcoming 5G networks. To this aim, the core contributions of this research are twofold: 1) a novel heuristic called Hybrid ...

    Efficient sharing mechanisms for virtualized multi-tenant heterogeneous networks 

    Vincenzi, Matteo (Date of defense: 2022-07-18)

    The explosion in data traffic, the physical resource constraints, and the insufficient financial incentives for deploying 5G networks, stress the need for a paradigm shift in network upgrades. Typically, operators are also ...

    Energy aware optimization for low power radio technologies 

    Suciu, Ioana (Date of defense: 2020-03-10)

    The explosive growth of IoT is pushing the market towards cheap, very low power devices with a strong focus on miniaturization, for applications such as in-body sensors, personal health monitoring and microrobots. Proposing ...

    Energy sustainability of next generation cellular networks through learning techniques 

    Miozzo, Marco (Date of defense: 2018-09-18)

    The trend for the next generation of cellular network, the Fifth Generation (5G), predicts a 1000x increase in the capacity demand with respect to 4G, which leads to new infrastructure deployments. To this respect, it is ...

    Energy-aware routing techniques for software-defined networks 

    Fernández Fernández, Adriana (Date of defense: 2018-06-29)

    Achieving energy efficiency has recently become a key topic of networking research due to the ever-increasing power consumption and CO2 emissions generated by large data networks. This problem is becoming even more concerning ...

    Enhanced mobility management mechanisms for 5G networks 

    Jain, Akshay (Date of defense: 2020-10-01)

    Many mechanisms that served the legacy networks till now, are being identified as being grossly sub-optimal for 5G networks. The reason being, the increased complexity of the 5G networks compared previous legacy systems. ...

    Enhanced quality of service mechanisms for 5G networks 

    Irazabal Bengoa, Mikel (Date of defense: 2021-09-10)

    The heterogeneous services with stringent requirements that are envisioned to co-exist under the fifth generation of cellular networks (5G), inexorably challenge the current Long-Term Evolution (LTE) cellular network’s ...

    Enhancement of vehicular ad hoc networks using machine learning-based prediction methods 

    Lemus Cárdenas, Leticia (Date of defense: 2020-07-22)

    Society is aware that the ecological predation of the planet is due to human activity. Therefore, it is necessary to carry out actions to reverse this damage. Besides, the trend of population growth in big cities and the ...

    Fair Allocation of Network Resources for Internet Users 

    Banchs Roca, Albert (Date of defense: 2002-02-18)

    In a commercial Internet, the traffic behavior is determined by the contracts between the ISPs and the users, where a user can be a dial-up user, or one corporate network or a group of individual customers or networks. ...