Now showing items 1-20 of 62

    • 15-dB differential link-loss UDWDM-PON with direct beat phase modulated DFBs 

      Velásquez Micolta, Juan Camilo; Cano Valadez, Iván Nicolás; Polo Querol, Víctor; Domingo Ribé, Marc; Prat Gomà, Josep Joan (2017-11-21)
      Article
      Open Access
      IEEE A 15 dB differential link-loss ultra-dense wavelength division multiplexing passive optical network (UDWDM-PON) with two optical network units (ONU) spectrally spaced 6.25 GHz is experimentally implemented and tested. ...
    • 1Gb/s service planning on standard PON technologies 

      Larrabeiti, David; Sánchez, Rafael; Hernández, José A. (2017-06)
      Audiovisual
      Open Access
      Tutorial impartit dins del marc del 2nd International Workshop on Elastic Networks Design and Optimisation (ELASTICNETS 2017).
    • 7.5 Gb/s direct DFB phase modulation with 8-DPSK for 6.25 GHz spaced coherent UDWDM-PONs 

      Cano Valadez, Iván Nicolás; Velásquez Micolta, Juan Camilo; Prat Gomà, Josep Joan (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Conference report
      Restricted access - publisher's policy
      We demonstrate an 8-DPSK directly phase-modulated DFB with intradyne detection in a 50 km, 6.25 GHz channel spaced UDWDM-PON. A bit rate of 7.5 Gb/s is achieved with Rx sensitivity of -31 dBm at BER=10-3.
    • A new flexible ONU design for UDWDM-PON with coherent transceivers and smart activation process 

      Segarra Mullerat, Josep; Sales Zaragozá, Vicente; Prat Gomà, Josep Joan; Pous, R. (2014)
      Conference report
      Restricted access - publisher's policy
      We present a novel ONU architecture for coherent UDWDM-PON with randomly distributed ONU wavelengths. The ONU is built with one or two lasers exhibiting simple limited thermal tunability in a specific optical band, where ...
    • A P4-Based PON architecture for 5G 

      Haastrup, Adebanjo; Rincón Rivera, David; Sallent Ribes, Sebastián; Piney da Silva, José Ramón (2018)
      Conference lecture
      Open Access
    • A proposal for an SDN-based SIEPON architecture 

      Hamzeh, Khalili; Sallent Ribes, Sebastián; Piney da Silva, José Ramón; Rincón Rivera, David (2017-07-03)
      Article
      Open Access
      Passive Optical Network (PON) elements such as Optical Line Terminal (OLT) and Optical Network Units (ONUs) are currently managed by inflexible legacy network management systems. Software-Defined Networking (SDN) is a new ...
    • Access services availability and traffic forecast in PON deployment 

      Segarra Mullerat, Josep; Sales Zaragozá, Vicente; Prat Gomà, Josep Joan (IEEE, 2011)
      Conference report
      Restricted access - publisher's policy
      In this paper, offered and new broadband services for residential customers are considered in Passive Optical Networks (PONs). The user bit rates together with QoS requirements are evaluated for the availability of ...
    • Agile reconfigurable and traffic adapted all-optical access-metro networks 

      Segarra Mullerat, Josep; Sales Zaragozá, Vicente; Prat Gomà, Josep Joan (2009)
      Conference report
      Restricted access - publisher's policy
      The emerging high bandwidth and on-demand user applications require improvements in capacity, configurability and resiliency in next generation optical access networks to incrementally expand on the basis of customers ...
    • Algoritmo distribuido para la asignación dinámica de recursos en redes EPON 

      Gutiérrez González, Lluís; Andrade Jardín, Marilet de; Sallent Ribes, Sebastián; Garfias Hernandez, Paola (2009-09)
      Conference report
      Open Access
    • An energy-efficient distributed dynamic bandwidth allocation algorithm for Passive Optical Access Networks 

      Khalili, Hamzeh; Rincón Rivera, David; Sallent Ribes, Sebastián; Piney da Silva, José Ramón (2020-03-13)
      Article
      Open Access
      The rapid deployment of passive optical access networks (PONs) increases the global energy consumption of networking infrastructure. This paper focuses on the minimization of energy consumption in Ethernet PONs (EPONs). ...
    • An integrated SDN-based architecture for Passive Optical Networks 

      Khalili, Hamzeh; Rincón Rivera, David; Sallent Ribes, Sebastián; Piney da Silva, José Ramón (InTech, 2018-09-19)
      Part of book or chapter of book
      Open Access
      Passive Optical Network (PON) are often managed by non-flexible, proprietary network management systems. Software Defined Networking (SDN) opens the way for a more efficient operation and management of networks. We describe ...
    • Analysis of the performances and tolerances of the 2nd generation passive optical networks (NGPON2) for FTTH systems 

      Velásquez Micolta, Juan Camilo (Universitat Politècnica de Catalunya, 2014-10-06)
      Master thesis
      Open Access
      [ENGLISH] In a Fiber to the Home (FTTH) system, the fiber is connected until the household users. A passive optical network (PON) is a particular type of FTTH networks that uses P2MP (point-to-multipoint fiber premises) ...
    • Assessment on the deployment of FTTH networks 

      Duran Rosich, Eduard (Universitat Politècnica de Catalunya, 2012-01-16)
      Master thesis
      Open Access
      While the technology to deploy FTTH networks has been known for some time, its deployment in Europe has been rather slow. Uncertainty about future regulation, low demand, a regulatory model base on the ladder of investment ...
    • Bidirectional coherent PON with ONU based on reused direct-modulated LO 

      Cano Valadez, Iván Nicolás; Bottoni, Fabio; Velásquez Micolta, Juan Camilo; Presi, Marco; Ciaramella, Ernesto; Prat Gomà, Josep Joan (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Conference report
      Restricted access - publisher's policy
      We demonstrate a bidirectional coherent PON based on a direct-modulated upstream signal reused as LO. The proposed system achieves -46/-48 dBm downstream/upstream sensitivity at BER=10-3.
    • Characterization and design of multifunction photonic devices for next-generation fiber-to-the-home optical network units 

      Schrenk, Bernhard (Universitat Politècnica de Catalunya, 2011-04-28)
      Doctoral thesis
      Open Access
      El estudio e investigación en el campo de las redes ópticas de acceso han sido fomentadas en años recientes debido a la continua migración de Servicios multimedia que son ofrecidos a través de Internet. Aunque los dispositivos ...
    • Colourless FSK/ASK optical network unit based on a Fabry Pérot type SOA/REAM for symmetrical 10 Gb/s WDM-PONs 

      Schrenk, Bernhard; Lázaro Villa, José Antonio; Kazmierski, Christophe; Prat Gomà, Josep Joan (2009-09-20)
      Conference report
      Restricted access - publisher's policy
      An Optical Network Unit based on colourless detection of optical frequency modulated signals based on a combination of Semiconductor Optical Amplifier and Reflective Electroabsorption modulator with intensity remodulation ...
    • Construcción de un modelo de nodo híbrido de red inalámbrica WiMAX - Red Óptica Pasiva (PON) 

      González Gamero, Antonio; González Rojas, Carlos (Universitat Politècnica de Catalunya, 2009-06-25)
      Bachelor thesis
      Open Access
    • Control and management requirements for a coherent ultra-dense WDM PON for lambda to the user access networks 

      Ververidis, Christopher; Tomkos, Ioannis; Klonidis, Dimitrios; Rafel, Albert; Parkin, Neil; Urban, Patryk; Prat Gomà, Josep Joan; Segarra Mullerat, Josep (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Conference report
      Restricted access - publisher's policy
      In this paper we first highlight the arising MAC-layer requirements for a coherent ultra-dense WDM PON for full and shared lambda to the user access networks. We then report on the appropriate modifications of the XGPON ...
    • Decomposed radio access network over deployed passive optical networks using coherent optical OFDM transceivers 

      Fàbrega Sánchez, Josep Maria; Svaluto Moreolo, Michela; Chochol, Marcin; Junyent Giralt, Gabriel (Institute of Electrical and Electronics Engineers (IEEE), 2013-04-04)
      Article
      Restricted access - publisher's policy
      In this paper, it is proposed to take advantage of the deployed passive optical network (PON) infrastructure by overlaying a decomposed radio access network (RAN) using a very dense WDM. Coherent optical orthogonal ...
    • Desarrollo de una red FTTH 

      Lara Martínez, Miguel Ángel (Universitat Politècnica de Catalunya, 2016-01)
      Bachelor thesis
      Restricted access - author's decision
      En la actualidad, el sistema puntero en comunicaciones de larga distancia y con mayor volumen para la transmisión de datos es la fibra óptica. Es un medio físico capaz de ser preciso, barato y a su vez, garantizar una ...