Now showing items 1-20 of 28

    • All-fiber mach-zehnder interferometer for dwdm-pon bidirectional multiplexing 

      Kurysheva, Anna (Universitat Politècnica de Catalunya, 2015-07)
      Master thesis
      Open Access
      Next generation optical access networks (FTTH, Fiber-to-the-Home), use wavelength division multiplexing (WDM) to highly increase the communication capacity to/from the users. A key issue in these networks is to split/combine ...
    • Avantprojecte d’una xarxa d’accés de fibra òptica fins la llar a Centelles 

      Polo Domínguez, Irene (Universitat Politècnica de Catalunya, 2009-09-10)
      Master thesis (pre-Bologna period)
      Open Access
      Es presenta un anàlisis de l'estat del mercat de banda ampla i els diversos desplegaments de noves xarxes d'accés basades en fibra òptica tant a nivell nacional com internacional. A més es presenta una comparativa de ...
    • Comparison of OFDM with single carrier in high-data rate optical communication systems 

      Diaz Souto, Alberto (Universitat Politècnica de Catalunya, 2011-12-23)
      Master thesis (pre-Bologna period)
      Open Access
      English: Analysis of Orthogonal FDM modulation for long-haul optical communications, and validation of its performances over conventional transmission.
    • Control de la polarització de la llum en una xarxa WDM-PON 

      Blanco Benítez, Juan (Universitat Politècnica de Catalunya, 2015-07)
      Master thesis (pre-Bologna period)
      Open Access
      Study of control and compensation of the distorion in polarization, introduced by the birefringence of a fiber in a WDM-PON net.
    • Diseny i valoració d'una infraestructura FTTH per a crear un operador de red neutre en un municipi del Baix Llobregat 

      Hernández Fabregas, Rebeca (Universitat Politècnica de Catalunya, 2008-01-17)
      Master thesis (pre-Bologna period)
      Open Access
      La finalitat d’aquest projecte es l’estudi i valoració econòmica d’una red “Fiber-to-the-Home” en un municipi del Baix Llobregat. Aquesta red s’explotaria en un model d’operador neutre i s’empraria de red de transport a ...
    • Estabilització de dispositius de modulació i desmodulació òptics 

      Anglada Clofent, Ferran (Universitat Politècnica de Catalunya, 2010-12-14)
      Master thesis (pre-Bologna period)
      Open Access
      Català: En el present treball s'evaluen tres sistemes dissenyats per estabilitzar diversos paràmetres d'un modulador d'amplitud i un desmodulador de fase, tots ells de tipus òptic.
    • Estudio tecno-económico de soluciones para el acceso multioperador del bucle de abonado en las redes de acceso de nueva generación (NGA) 

      Carmona Torondel, David (Universitat Politècnica de Catalunya, 2012-02-01)
      Master thesis (pre-Bologna period)
      Open Access
      English: local loop unbundling tecniques in FTTH network architectures.
    • Evaluation of indoor VLC positioning 

      Mas I Méndez, Mireia (Universitat Politècnica de Catalunya, 2019-08)
      Bachelor thesis
      Restricted access - confidentiality agreement
    • Forward error correction in optical ethernet communications 

      Oliveras Boada, Jordi (Universitat Politècnica de Catalunya, 2014-07-21)
      Bachelor thesis
      Open Access
      [ANGLÈS] A way of incrementing the amount of information sent through an optical fibre is ud-WDM (ultra dense – Wavelength Division Multiplexing). The problem is that the sensitivity of the receiver requires certain SNR ...
    • Funció no lineal òptima per una fotodetecció Gaussiana 

      Jiménez Conesa, Alejandro (Universitat Politècnica de Catalunya, 2008)
      Master thesis (pre-Bologna period)
      Open Access
      En els sistemes de comunicacions òptiques amb amplificació òptica, l’estadística de les mostres sorolloses rebudes no és Gaussiana estacionària a l’entrada de l’equalitzador. Aquest fet és degut a l’efecte de la llei ...
    • Implementación de una aplicación de video-on-demand sobre redes de fibra óptica 

      Hontoria Arlandiz, Daniel (Universitat Politècnica de Catalunya, 2009)
      Master thesis (pre-Bologna period)
      Open Access
      El objetivo de este proyecto es la realización de transmisiones de contenidos multimedia de alta definición sobre redes de banda ancha, en principio, sobre redes de fibra óptica. Primeramente, se realiza un estudio ...
    • Implementation of a multi-layer neural network 

      Sánchez Espunyes, Anna (Universitat Politècnica de Catalunya, 2020-06)
      Bachelor thesis
      24 months embargo
      Covenantee:   Danmarks tekniske universitet
      In a world where the amount of data is increasing exponentially, machine learning is viewed as a disruptive technology with the potential to transform areas such as medical diagnosis, musicology, business, and financial ...
    • Implementing and testing optical transceivers for fiber access networks 

      Domingo Ribé, Marc (Universitat Politècnica de Catalunya, 2017-10-20)
      Bachelor thesis
      Open Access
      New fiber-to-the-Home access networks require low cost broadband transceivers capable of sharing an optical cable infrastructure. In this TFG different types of broadband optical transmitters and receivers for fiber access ...
    • Investigació i realització de packaging optoelectrònic Low-Cost 

      Muñoz Gómez, Carlos Rafael (Universitat Politècnica de Catalunya, 2013-12-03)
      Master thesis (pre-Bologna period)
      Open Access
      [ANGLÈS] This project shows the study of optoelectronic packaging process and the evolution of the work realized in order to find low-cost alternatives, useful for situations where a low number of these devices is needed.
    • Modulación directa de diodos láser de alta velocidad para sistemas de transmisión coherente 

      Lerín y de la Santísima Trinidad, Adolfo (Universitat Politècnica de Catalunya, 2012)
      Master thesis (pre-Bologna period)
      Open Access
      [ANGLÈS] The development of new optical networks is related with the capacity to arrive to cost effective solutions. For this reason is necessary a reduction in the number of devices into the network. In this way is possible ...
    • New generation FTTH ONU and OLT design for upstream transmission in WDM PON including optimized combination of electronics and optics 

      Omella Cancer, Mireia (Universitat Politècnica de Catalunya, 2010-10-18)
      Doctoral thesis
      Open Access
      This research is developed in the context of the Next Generation of Passive Optical Networks (NG-PON) for Fibre to the Home (FTTH) network. In this thesis, several techniques are proposed in order to increase the network ...
    • Next generation optical access networks and coexistence with legacy PONs 

      Velásquez Micolta, Juan Camilo (Universitat Politècnica de Catalunya, 2019-07-25)
      Doctoral thesis
      Open Access
      Nowadays, Fiber-to-the-Home is one of the most promising solutions to provide broadband services in access networks. However, the fiber is inefficiently used as most of the deployed systems are still based on Time Division ...
    • Photonic devices for next generation fiber-to-the-home access network 

      Chu, Guang Yong (Universitat Politècnica de Catalunya, 2016-02-22)
      Doctoral thesis
      Open Access
      It would be unaffordable if the WDM-PON technologies were directly applied for massive deployment. Hence, the potential WDM-PON is to be integrated and improved in order to adapt it for NGPON and the future 5G. The UDWDM-PON ...
    • Platform to control and monitor a microcontroller remotely 

      Riudalbás Clemente, Marc (Universitat Politècnica de Catalunya, 2017-06)
      Bachelor thesis
      Open Access
      Covenantee:   Hochschule Aalen
      This project is going to modify a communication between monitoring software and a microcontroller. Currently this communication is carried out physically with a cable. Our goal is to remove this cable and implement a ...
    • 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 ...