Exploració per tema "Sistema global per a comunicacions mòbils"

Ara es mostren els items 1-20 de 69

    • 5G networks for Autonomous Vehicle and Smart Cities 

      Llombart Simon, Pau (Universitat Politècnica de Catalunya, 2018-06)
      Treball Final de Grau
      Accés obert
      Analysis, study and simulations of the proposed modulations for 5G (FBMC, UFMC, GFDM and F-OFDM)

    • A Collaborative Protocol for Private Retrieval of Location-Based Information 

      Rebollo Monedero, David; Forné Muñoz, Jorge; Subirats Maté, Laia; Solanas, Agustí; Martínez-Ballasté, Antoni (IADIS Press, 2009)
      Comunicació de congrés
      Accés obert
      Privacy and security are paramount for the proper deployment of location-based services (LBSs). We present a novel protocol based on user collaboration to privately retrieve location-based information from an LBS provider. ...

    • A distance-weighted dynamic bandwidth allocation algorithm for improved performance in long-reach passive optical networks for next generation networks 

      Haastrup, Adebanjo; Zehri, Mohammad Habib; Rincón Rivera, David; Piney da Silva, José Ramón; Bazzi, Ali (2023-08-11)
      Article
      Accés obert
      In recent years, there has been an increasing trend towards extending the coverage of passive optical networks (PONs) over large geographical areas. Long-reach PONs (LRPONs) are capable of extending the distance covered ...

    • A preliminary study on ionospheric scintillation anomalies detected using GNSS-R data from NASA CYGNSS mission as possible earthquake precursors 

      Molina Ordóñez, Carlos; Boudriki Semlali, Badr Eddine; Hyuk, Park; Camps Carmona, Adriano José (Multidisciplinary Digital Publishing Institute (MDPI), 2022-05-26)
      Article
      Accés obert
      Ionospheric perturbations affect the propagation of electromagnetic waves. These perturbations, besides being a problem for space communications, satellite navigation, and Earth observation techniques, could also be used ...

    • Abstraction of Mobile Network Topology 

      Codes Morales, Albert (Universitat Politècnica de Catalunya, 2015-03-09)
      Projecte/Treball Final de Carrera
      Accés obert
      Realitzat a/amb:   King's College London
      [ANGLÈS] Analyse the effect that abstracting topology of mobile networks would have on the performance of current mobile networks. The investigations are carried out in network simulator and by designing the SDN-based ...

    • Access modes based on coordinated multipoint for relay transmissions in 4G systems 

      Lagén Morancho, Sandra (Universitat Politècnica de Catalunya, 2011-12-22)
      Projecte/Treball Final de Carrera
      Accés obert
      English: the objective of this project is to explore and evaluate new system architectures for next generation cellular systems, by developing new system deployments and then deriving algorithms for the resource allocation ...

    • Ampliació de cobertura TETRA en un túnel per serveis d'emergències 

      Ares Rio, Francisco Javier; Luna Cantos, Francisco David (Universitat Politècnica de Catalunya, 2015-09-18)
      Projecte/Treball Final de Carrera
      Accés obert
      El present projecte descriurà les parts bàsiques necessàries per dotar de cobertura TETRA l’interior d’un túnel viari i decidir la millor alternativa de muntatge. Les comunicacions sense fils a l’interior d’edificis, ...

    • Analysing and modelling battery drain of 3G terminals due to port scan attacks 

      Pascual Trigos, Mar (Universitat Politècnica de Catalunya, 2010-05-19)
      Projecte Final de Màster Oficial
      Accés obert

    • Anàlisi de les característiques del sistema de comunicacions mòbils LTE usant Matlab 

      Liria Masegosa, Meritxell (Universitat Politècnica de Catalunya, 2016-02)
      Treball Final de Grau
      Accés obert
      The recent increased use of mobile data and the development of new applications and services have been the motivations that 3GPP LTE develop the project. Shortly before 2010, the UMTS networks reach 85% of mobile subscribers. ...

    • Análisis del diseño y simulación de sistemas 5G utilizando SystemVue 

      Carbajo Roig, Ferran (Universitat Politècnica de Catalunya, 2019-01)
      Treball Final de Grau
      Accés obert
      Since the beginning of digital mobile communications, each generation has been developed to improve efficiency, coverage, spectrum capacity and traffic rate. The 5G system is the immediate future of telecommunications, and ...

    • Cobertura TETRA en interior de edificios 

      Parra Hidalgo, Juan Manuel (Universitat Politècnica de Catalunya, 2009-05-12)
      Projecte/Treball Final de Carrera
      Accés obert

    • Comparison in the two clusters merging scenario between the IEEE 802.11p MAC protocol and STDMA 

      Cerezo Oliva, José María (Universitat Politècnica de Catalunya / Technische Universität Wien, 2012-07-24)
      Projecte Final de Màster Oficial
      Accés obert
      Realitzat a/amb:   Technische Universität Wien
      [ANGLÈS] Comparison between the access function algorithm in the MAC layer in IEEE 802.11p, CSMA/CA, and the MAC protocol STDMA, in terms of delay and scalability in a concrete scenario where two clusters of vehicles move ...

    • Context-Location multiagent system for mobile learning in a city : learning application for Android devices 

      Margalef Doñate, Albert (Universitat Politècnica de Catalunya / Norwegian University of Science and Technology, 2010-08-16)
      Projecte/Treball Final de Carrera
      Accés obert
      Realitzat a/amb:   Norges teknisk-naturvitenskapelige universitet
      The subject of my thesis is Context-Aware Multiagent system for Mobile learning in a city, and is a small part inside the Fabula project. Fabula wants to try to become the city in a learning platform helping them to learn ...

    • Contribution to the development of a hypervisor in a virtualized mobile communication network 

      Vilà Muñoz, Irene (Universitat Politècnica de Catalunya, 2017-07)
      Projecte Final de Màster Oficial
      Accés obert
      Software Defined Networking (SDN) and Network Function Virtualization (NFV) are two promising technologies that together provide a more efficient utilization of the network resources and a reduction of operational costs. ...

    • Coordination strategies for interference management in MIMO dense cellular networks 

      Lagén Morancho, Sandra (Universitat Politècnica de Catalunya, 2016-12-21)
      Tesi
      Accés obert
      The envisioned rapid and exponential increase of wireless data traffic demand in the next years imposes rethinking current cellular networks due to the available spectrum scarcity. In this regard, 3 main drivers are ...

    • Decàleg per a la planificació d'infraestructures de radiocomunicacions multiservei per proveir d'accés a les comunicacions electròniques en zones rurals 

      Romeu Sala, Santiago (Universitat Politècnica de Catalunya, 2016-02)
      Projecte/Treball Final de Carrera
      Accés obert
      The target of this paper is to plan neatly a solution for providing access to the electronic communications services in an rural area, by implementing a radiocommunication infrastructure. The set of communication services ...

    • Design of a 5G Antenna System for the Next Generation of Vehicular Communications 

      Gracia Montaner, Julia (Universitat Politècnica de Catalunya, 2023-02-02)
      Treball Final de Grau
      Accés restringit per acord de confidencialitat
      In this Final Thesis Report, an antenna system that operates in the Sub-6 GHz spectrum for future 5G New Radio (5G NR) applications has been proposed. After studying the latest technologies in mobile communication and the ...

    • Desplegament d'una xarxa d'estacions base 4G LTE sobre una xarxa prèvia 2G i 3G 

      Torres Carnicé, Antoni Ramon (Universitat Politècnica de Catalunya, 2016)
      Projecte/Treball Final de Carrera
      Accés restringit per decisió de l'autor
      En un momento en el que necesitamos estar conectados con todo el mundo en cualquier momento, las redes actuales de los operadores de telefonía móvil necesitan crecer para poder absorber esta demanda. La red LTE de 4a ...

    • Development of a LTE system-level simulator for aircraft cabins 

      Muñoz López, Albert (Universitat Politècnica de Catalunya, 2012-11-30)
      Projecte/Treball Final de Carrera
      Accés restringit per decisió de l'autor
      [ANGLÈS] Mobile broadband has changed the way we live and work. The way we communicate is becoming enriched with higher speeds and exciting new services both at home, on the road and on aircraft. Nowadays, a growing number ...

    • Development of a tool for GSM networks performance analysis and evaluation 

      Parra Fernández, Cristina (Universitat Politècnica de Catalunya, 2013-12-12)
      Projecte/Treball Final de Carrera
      Accés obert
      [ANGLÈS] Mobile communications have had an strong growth in our society in the recent years and it keeps increasing. Therefore, it is important to dispose of a network able to provide enough capacity and a minimal quality ...