Exploració per tema "Fiber optics"

Ara es mostren els items 1-13 de 13

    • A discrete bit loading algorithm for FBMC/OQAM 

      Caus López, Marius; Pérez Neira, Ana Isabel; García Armada, Ana (2012-06)
      Article
      Accés restringit per política de l'editorial
      In this letter the discrete rate maximization problem is investigated for FBMC/OQAM. The analysis reveals that if there is crosstalk certain bit allocations violate the power constraints. Aiming at ensuring the feasibility ...

    • Disseny d'una xarxa d'accés FTTH 

      Dorca Moreno, Anna (Universitat Politècnica de Catalunya, 2013-07-09)
      Treball Final de Grau
      Accés obert
      Des de l’Ajuntament de Centelles es proposa dotar d’una infraestructura i un desplegament de fibra òptica que permeti la creació d’una xarxa d’accés FTTH (Fiber to the Home) per a una zona determinada del municipi. Aquesta ...

    • Disseny de dos circuits opto-electrònics desplaçadors de la longitud d'ona per xarxes d'accés per fibra òptica (FTTH) 

      Solé Sánchez, Víctor (Universitat Politècnica de Catalunya, 2012-11-21)
      Projecte/Treball Final de Carrera
      Accés obert
      [ANGLÈS] In this work it is presented the design and simulation of two different opto-electronic circuits to perform a wavelength shifting at optical network units (ONU) of Fiber To The Home (FTTH) networks. This significantly ...

    • Fiber-based orthogonal frequency division multiplexing transmission systems 

      Heras Miguel, Eduardo (Universitat Politècnica de Catalunya, 2010-11-03)
      Projecte Final de Màster Oficial
      Accés obert

    • Joint PMD and Chromatic Dispersion Compensation Using an MLSE 

      Gené Bernaus, Joan M.; Winzer, Peter J.; Chandrasekhar, Sethumandhavan; Kogelnik, Herwig (2006)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Experimental investigations show that maximum likelihood sequence estimation (MLSE) in a 10.7 Gb/s non return-to-zero system improves by 60-70% the tolerance to first-order polarization mode dispersion (PMD), even in the ...

    • Network coding-based protection scheme for elastic optical networks 

      Ramirez, William Fred; Masip Bruin, Xavier; Yannuzzi, Marcelo; Montero Banegas, Diego Teodoro; Martinez, Alejandro; Lopez, Victor Bohorquez (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Optical technologies are the foundations supporting the current telecommunication network backbones due to the high speed transmissions achieved in fiber optical networks. Traditional optical networks consist of a fixed ...

    • Neutral dark fibre operator in the city of Barcelona: Technical solution and business model 

      Rico i Tuneu, Mario (Universitat Politècnica de Catalunya, 2011-03-21)
      Projecte Final de Màster Oficial
      Accés obert
      This thesis aims to study the technical and economic feasibility of developing an operator of dark fibre in the city of Barcelona to provide rental fibre services and room to telecom operators to offer high-speed connectivity ...

    • Next-generation optical access networks based on Orthogonal Frequency Division Multiplexing 

      De las Heras Mandome, Marçal (Universitat Politècnica de Catalunya, 2011-09-30)
      Projecte Final de Màster Oficial
      Accés obert
      Orthogonal Frequency Division Multiplexing (OFDM) is a robust modulation and multiplexing format which is at the base of many present communication standards. The interest of the OFDM application in optical fiber deployments ...

    • Optimització de recursos en una xarxa de transport de fibra òptica: cas pràctic de connexió d'un polígon industrial 

      Barceló Giró, Xavier (Universitat Politècnica de Catalunya, 2016-07)
      Projecte/Treball Final de Carrera
      Accés obert
      The optical fiber is constantly growing i there are companies dedicated to the expansion of the fiber optic network. As the fiber comes more and more population, the number of services contracted increases and must create ...

    • Passive Fiber Ring Flip-Flop Memory Based on Polarization Dynamics 

      García Mateos, Jorge; Canal Bienzobas, Fernando; Haelterman, M. (ELSEVIER SCIENCE BV, 1997-05-01)
      Article
      Accés obert
      Passive fiber ring resonators synchronously pumped by cw trains of ultrashort pulses are shown to exhibit polarization symmetry breaking. Application of this feature to all-optical storage is considered. The proposed storage ...

    • Square-root strategy: a novel method to linearize an optical communication system with electronic equalizers 

      Prat Gomà, Josep Joan; Napoli, Antonio; Gené Bernaus, Joan M.; Omella Cáncer, Mireia Esther; Poggiolini, P.; Curri, Vittorio (2005)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      We demonstrate a nonlinear function after the photodetector that linearizes dispersion-limited IM-DD systems, enhancing the performance of linear electronic equalization. Results showed a clear improvement in terms of ...

    • Towards a network operating system 

      López Álvarez, Victor; Gonzalez de Dios, Oscar; Fuentes, Beatriz; Yannuzzi, Marcelo; Fernández Palacios, Juan Pedro; Lopez, Diego (2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      A Network Operating System (NetOS) is a novel paradigm for developing a next-generation network management and operation platform. As we shall describe, NetOS not only goes far beyond the SDN concepts but also constitutes ...

    • Wavelength Tunable Short Pulses Sources Based on Frequency Comb Generation in a Mach-Zehnder Modulator 

      Aranda Agüera, Carlos Alberto (Universitat Politècnica de Catalunya, 2011-09-28)
      Projecte/Treball Final de Carrera
      Accés obert
      Realitzat a/amb:   Danmarks tekniske universitet
      English: In this thesis we present the study of the implementation of ultrashort pulses using frequency comb generation in a Mach-Zehnder modulator and chirp compensation in a standard single-mode fiber. Two possible ...