Exploració per autor "Segarra Mullerat, Josep"Més informacióMés informació

Ara es mostren els items 9-23 de 23

    • Flexible coherent UDWDM-PON adapting dynamically to different bandwidths 

      Segarra Mullerat, Josep; Sales Zaragozá, Vicente; Prat Gomà, Josep Joan; Kazovsky, Leonid (2017)
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      Ultra-Dense Wavelength Division Multiplexing (UDWDM) is a candidate for future Passive Optical Networks (PONs) to sustain the increase of access traffic, providing enhanced capacity with point-to-point logical connections ...

    • Flexible coherent UDWDM-PON with dynamic user allocation based on limited-tunability lasers 

      Segarra Mullerat, Josep; Sales Zaragozá, Vicente; Polo Querol, Víctor; Tabares Giraldo, Jeison; Prat Gomà, Josep Joan (Institute of Electrical and Electronics Engineers (IEEE), 2020-09-01)
      Article
      Accés obert
      Coherent wavelength division multiplexing (WDM) technologies have leveraged the optical communication systems in core networks, increasing the fiber capacity by transmission with advanced modulation formats and mitigation ...

    • Flexible mobile fronthaul with coherent UDWDM-PON 

      Segarra Mullerat, Josep; Sales Zaragozá, Vicente; Prat Gomà, Josep Joan (2018)
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      Ultra Dense Wavelength Division Multiplexing (UDWDM) has been proposed for future Passive Optical Networks (PONs) to support the increase of access traffic, furnishing an improved capacity while introducing point-to-point ...

    • GPON redundancy eraser algorithm for long-reach extension 

      Segarra Mullerat, Josep; Sales Zaragozá, Vicente; Prat Gomà, Josep Joan (Institute of Electrical and Electronics Engineers (IEEE), 2013)
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      Long-Reach (LR) extension is a promising scheme for future next generation access networks, enabling less Central Offices (COs) in the field and a large number of customers in the access/metro area. Because of the large ...

    • GPON scheduling disciplines under multi-service bursty traffic and long-reach approach 

      Segarra Mullerat, Josep; Sales Zaragozá, Vicente; Prat Gomà, Josep Joan (2010)
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      Gigabit-capable PON (GPON) is the optical access standard being deployed by many incumbent operators, but the Dynamic Bandwidth Allocation (DBA) algorithm for multi-service Quality of Service (QoS) is not specified; hence, ...

    • Grade of service in UDWDM-PON with statistical wavelength subscribing 

      Segarra Mullerat, Josep; Sales Zaragozá, Vicente; Prat Gomà, Josep Joan (Institute of Electrical and Electronics Engineers (IEEE), 2018)
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      The Grade of Service (GoS) or ONU rejection probability in coherent UDWDM-PONs with ONU lasers under limited tunability is evaluated. Each active ONU is assigned an exclusive wavelength channel, which is managed by heuristic ...

    • Half-duplex transmission avoiding rayleigh backscattering crosstalk in UDWDM-PON with coherent receivers 

      Segarra Mullerat, Josep; Sales Zaragozá, Vicente; Polo Querol, Víctor; Prat Gomà, Josep Joan (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Text en actes de congrés
      Accés obert
      Ultra Dense Wavelength Division Multiplexing (UDWDM) is a promising technique for access PON, introducing the wavelength-to-the-user concept. The key enabling technology will be a new cost-effective coherent detection ...

    • Planning and designing FTTH networks: elements, tools and practical issues 

      Segarra Mullerat, Josep; Sales Zaragozá, Vicente; Prat Gomà, Josep Joan (IEEE, 2012)
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      Fiber-To-The Home (FTTH) provides the offered and new broadband services. Now it is deployed massively worldwide with Passive Optical Networks (PONs), being the EPON and GPON standards the most used. In this paper we ...

    • Practical design of a coherent ultra-dense WDM-PON with paired DFB lasers 

      Segarra Mullerat, Josep; Sales Zaragozá, Vicente; Polo Querol, Víctor; Prat Gomà, Josep Joan (Institute of Electrical and Electronics Engineers (IEEE), 2020)
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      A coherent WDM-PON achieving ultra-dense spectral allocation is reported. The ONU at user premises is built of coherent transceivers with two paired low-cost DFB lasers, one as local oscillator and the other as transmitter, ...

    • Practical fast and non-intrusive ONU activation procedure in coherent udWDM-PON 

      Polo Querol, Víctor; Tabares Giraldo, Santiago; Canals, X; Segarra Mullerat, Josep; Prat Gomà, Josep Joan (2023-04-15)
      Article
      Accés restringit per política de l'editorial
      The development of coherent high density WDM PONs, forecasted as one of the promising technologies to increase the spectral efficiency and reduce the energy consumption, can be obstructedbythe limited tunability, high ...

    • SARDANA: an all-optical access-metro WDM/TDM-PON 

      Spirou, S.; Tomkos, Ioannis; Prat Gomà, Josep Joan; Segarra Mullerat, Josep; Sales Zaragozá, Vicente; Lázaro Villa, José Antonio; Chanclou, Philippe; Soila, Risto; Teixeira, A.; Tosi Beleffi, Giorgio M. (2011)
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      A new optical access network, named “Scalable Advanced Ring-based passive Dense Access Network Architecture” (SARDANA), is presented. It transparently integrates WDM metro and TDM PON access technologies, implementing ...

    • Statistical UDWDM-PONs operating with ONU lasers under limited tunability 

      Sales Zaragozá, Vicente; Segarra Mullerat, Josep; Polo Querol, Víctor; Prat Gomà, Josep Joan (2015-02-01)
      Article
      Accés obert
      We explore a new wavelength management for ultradense wavelength division multiplexing- passive optical network with randomly distributed optical network unit (ONU) wavelengths, controlled with limited thermal tunability. ...

    • UDWDM-PON using low-cost coherent transceivers with limited tunability and heuristic DWA 

      Sales Zaragozá, Vicente; Segarra Mullerat, Josep; Polo Querol, Víctor; Velásquez Micolta, Juan Camilo; Prat Gomà, Josep Joan (Institute of Electrical and Electronics Engineers (IEEE), 2016-08-01)
      Article
      Accés obert
      A new Passive Optical Network (PON) for access, making use of Ultra Dense Wavelength Division Multiplexing (UDWDM) by densely spacing channels at few GHz, and introducing the “wavelength-to-the-user” concept, is proposed. ...

    • Versatile metro-access network integrating FTTH, enterprises, IoT and 5G services 

      Segarra Mullerat, Josep; Sales Zaragozá, Vicente; Prat Gomà, Josep Joan (2019)
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      Bandwidth demands are increasing with a high dynamic shape, driven by high definition video, cloudcomputing, business services, Internet of Things (IoT) and emerging next generation mobile networks like 5G. To support this ...

    • Xarxes FTTH de Nova Generació (Parts 1 i 2) 

      Prat Gomà, Josep Joan; Lázaro Villa, José Antonio; Segarra Mullerat, Josep (2009-12-15)
      Article
      Accés obert
      Les Xarxes Òptiques Passives (Passive Optical Networks-PONs) són el sistema d’accés per fibra òptica a la llar (Fiber To The Home-FTTH) més important per donar servei a les actuals i futures necessitats de transmissió ...