Browsing by Author "López Pastor, Eduardo Tommy"Més informació

Now showing items 1-18 of 18

    • Bandwidth assignment criteria against rayleigh backscattering effect in TDM-PON single-fibre wavelength-reuse networks 

      López Pastor, Eduardo Tommy; Lázaro Villa, José Antonio; Polo Querol, Víctor; Prat Gomà, Josep Joan (IEEE, 2011)
      Conference report
      Restricted access - publisher's policy
      In this paper, theoretical and numerical analysis for Rayleigh Backscattering (RB) in TDM-PON full-duplex single-fiber bidirectional transmission with burst mode upstream and reflective ONU are presented. The results show ...

    • Demonstration and field trial of a resilient hybrid NG-PON test-bed 

      Prat Gomà, Josep Joan; Polo Querol, Víctor; Schrenk, Bernhard; Lázaro Villa, José Antonio; Bonada Bo, Francesc; López Pastor, Eduardo Tommy; Omella, M.; Saliou, Fabienne; Trung Le, Quang; Chanclou, Philippe; Leino, D.; Soila, Risto; Spirou, S.; Costa, Liliana; Teixeira, A.; Tosi-Beleffi, G.M.; Klonidis, Dimitrios; Tomkos, Ioannis (2014-10-01)
      Article
      Restricted access - publisher's policy
      A multi-layer next generation PON prototype has been built and tested, to show the feasibility of extended hybrid DWDM/TDM-XGPON FTTH networks with resilient optically-integrated ring-trees architecture, supporting broadband ...

    • Demonstration of a full duplex PON featuring 2.5 Gbps Sub Carrier Multiplexing downstream and 1.25 Gbps upstream with colourless ONU and simple optics 

      Fàbrega Sánchez, Josep Maria; López Pastor, Eduardo Tommy; Lázaro Villa, José Antonio; Zuhdi, Muneer; Prat Gomà, Josep Joan (2008)
      Conference report
      Open Access
      We demonstrate a full-duplex DPSK SCM PON operating at 2.5Gbps/1.25Gbps bitrates, with RSOA ONU and simplified scheme. It achieves low sensitivity and is implemented with low-cost components.

    • Demonstration of a remotely dual-pumped long-reach PON for flexible deployment 

      Chanclou, Philippe; Schrenk, Bernhard; Lázaro Villa, José Antonio; Klonidis, Dimitrios; Bonada Bo, Francesc; Saliou, Fabienne; Polo Querol, Víctor; López Pastor, Eduardo Tommy; Le, Q.T.; Brenot, Romain; de Valicourt, Guilhem; Spirou, S.; Soila, Risto; Leino, D.; Tosi Beleffi, Giorgio M.; Tomkos, Ioannis; Chatzi, Sotiria; Teixeira, A.; Costa, L.; Kazmierski, Christophe; Prats, Jordi (2012-04-01)
      Article
      Restricted access - publisher's policy
      We propose and experimentally demonstrate a flexible wavelength division multiplexing/time division multiplexing network architecture for converged metro-access environment. Entire passiveness in the fiber plant is ...

    • Deployment analysis of TDM/WDM single fiber PON with colourless ONU operating at 2.5 Gbps subcarrier multiplexed downstream and 1.25 gbps upstream 

      Fàbrega Sánchez, Josep Maria; El Mardini, Ahmad; Polo Querol, Víctor; Lázaro Villa, José Antonio; López Pastor, Eduardo Tommy; Soila, Risto; Prat Gomà, Josep Joan (2010)
      Conference report
      Open Access
      A single-fiber full-duplex hybrid TDM/WDM-PON is demonstrated to operate at 2.5/1.25 Gbps rates, with RSOA ONU. It achieves high power budget (GPON compliant) at a distances higher than 20km, and serves up to 1280 users.

    • Examen de reavaluació (Curs 2020-2021) 

      López Pastor, Eduardo Tommy; Acosta Cobos, Mario César; Marín Tordera, Eva (Universitat Politècnica de Catalunya, 2021-01-29)
      Exam
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    • Examen parcial 1 (Curs 2019-2020) 

      Marín Tordera, Eva; López Pastor, Eduardo Tommy (Universitat Politècnica de Catalunya, 2019-11-06)
      Exam
      Restricted access to the UPC academic community

    • Examen parcial 1 (Curs 2020-2021) 

      López Pastor, Eduardo Tommy; Acosta Cobos, Mario César; Marín Tordera, Eva (Universitat Politècnica de Catalunya, 2020-11-12)
      Exam
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    • Examen parcial 2 i final (Curs 2019-2020) 

      López Pastor, Eduardo Tommy (Universitat Politècnica de Catalunya, 2020-01-13)
      Exam
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    • Examen parcial 2 i final (Curs 2020-2021) 

      López Pastor, Eduardo Tommy; Acosta Cobos, Mario César; Marín Tordera, Eva (Universitat Politècnica de Catalunya, 2021-01-15)
      Exam
      Restricted access to the UPC academic community

    • Layer 2 redesign for Metro-Access next generation PON 

      López Pastor, Eduardo Tommy; Polo Querol, Víctor; Lázaro Villa, José Antonio; Prat Gomà, Josep Joan (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Conference report
      Restricted access - publisher's policy
      Necessary modifications and extensions into Layer 2 of the actual PON access are necessary in order to meet new requirements from services providers and users. We propose a flexible Transmission Convergence (TC) Layer ...

    • Network dimensioning for a TDM-PON deployment Single-fibre single-wavelength-reuse based on reflective ONUs 

      López Pastor, Eduardo Tommy; Polo Querol, Víctor; Lázaro Villa, José Antonio; Prat Gomà, Josep Joan (Institute of Electrical and Electronics Engineers (IEEE), 2012)
      Conference report
      Restricted access - publisher's policy
      The network dimensioning for a TDM-PON deployment based on reflec tive ONUs is presented in order to optimize number of users for efficient exploitation. Due to wavelength reuse, the study is focused on the power budget ...

    • ONU optimal gain and position of the distribution element in Rayleigh-limited WDM and TDM PONs with reflective ONU 

      López Pastor, Eduardo Tommy; Lázaro Villa, José Antonio; Arellano Pinilla, Cristina; Polo Querol, Víctor; Prat Gomà, Josep Joan (Institute of Electrical and Electronics Engineers (IEEE), 2012)
      Conference report
      Restricted access - publisher's policy
      The influence of the distribution element position in PONs is reported. Best Crosstalk-to-Signal ratio (C/S) is achieved if it is placed either in the ONU or OLT vicinity with optimum ONU gain depending of the MUX position

    • Optical subsystems for next generation access networks 

      Lázaro Villa, José Antonio; Polo Querol, Víctor; Schrenk, Bernhard; Bonada Bo, Francesc; Cano Valadéz, Iván Nicolás; López Pastor, Eduardo Tommy; Kazmierski, Christophe; de Valicourt, Guilhem; Brenot, Romain; Bauwelinck, Johan; Xing-Zhi, Qiu; Ossieur, P.; Forzati, Marco; Rigole, Jean-Pierre; Monroy, I.T; Tangdiongga, E.; Morant, Maryland; Nicolau, L.; Teixeira, A.L.; Erasme, D.; Klonidis, Dimitrios; Tomkos, Ioannis; Prat Gomà, Josep Joan; Kouloumentas,, Christos; Avramopoulos, Hércules (2011)
      Conference report
      Restricted access - publisher's policy
      Recent optical technologies are providing higher flexibility to next generation access networks: on the one hand, providing progressive FTTx and specifically FTTH deployment, progressively shortening the copper access ...

    • Optimal trade-off for a bidirectional single-fibre single-wavelength TDM-PON rSOA-based ONU 

      López Pastor, Eduardo Tommy; Polo Querol, Víctor; Lázaro Villa, José Antonio; Prat Gomà, Josep Joan (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Conference report
      Restricted access - publisher's policy
      In this paper, an optimal trade-off between the Optical Distribution Network (ODN) power budget and the upstream optical Signal-to-Rayleigh Ratio (US-oSRR), for a Single- Fibre/Wavelength TDM-PON rSOA-based ONU network ...

    • Optimization of Rayleigh-limited WDM-PONs with reflective ONU by MUX positioning and optimal ONU gain 

      López Pastor, Eduardo Tommy; Lázaro Villa, José Antonio; Arellano Pinilla, Cristina; Polo Querol, Víctor; Prat Gomà, Josep Joan (2010-01)
      Article
      Open Access
      In this work, the influence of the distribution element position and the reflective optical network unit (ONU) gain in wavelength-division-multiplexing passive optical networks are reported. After the theoretical and ...

    • Test-bed functionality of the SARDANA hybrid NG-PON 

      Prat Gomà, Josep Joan; Polo Querol, Víctor; Lázaro Villa, José Antonio; Bonada, F.; López Pastor, Eduardo Tommy; Schrenk, Bernhard; Omella, M.; Saliou, F.; Le, Q.T.; Chanclou, P.; Leino, D.; Soila, R.; Spirou, S.; Costa, L.; Teixeira, A.; Tosi-Beleffi, G.M.; Klonidis, Dimitrios; Tomkos, Ioannis (2011)
      Conference report
      Restricted access - publisher's policy
      The tests with broadband multimedia services of the SARDANA multi-layer prototype prove the feasibility of scalable hybrid DWDM/TDM-PON FTTH networks with resilient optically-integrated ring-trees architecture.

    • WDM/TDM PON bidirectional networks single-fiber/wavelength RSOA-based ONUs layer 1/2 optimization 

      López Pastor, Eduardo Tommy (Universitat Politècnica de Catalunya, 2013-09-12)
      Doctoral thesis
      Open Access
      This Thesis proposes the design and the optimization of a hybrid WDM/TDM PON at the L1 (PHY) and L2 (MAC) layers, in terms of minimum deployment cost and enhanced performance for Greenfield NGPON. The particular case of ...