Exploració per tema "Passive optical networks"

Ara es mostren els items 21-40 de 72

    • 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
      Accés restringit per política de l'editorial
      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)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      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 ...

    • Design and Performance Evaluation of Passive Optical Networks 

      Cobos Melià, Víctor (Universitat Politècnica de Catalunya, 2011-06-14)
      Projecte Final de Màster Oficial
      Accés obert
      Currently, new housing developments in many places around the world are built with fiber-based connections to the home, and network providers are conducting field-testing and experiments with fiber access. In order to ...

    • Design considerations for an energy-aware SDN-based architecture in 5G EPON nodes 

      Khalili, Hamzeh; Sayyad Khodashenas, Pouria; Rincón Rivera, David; Siddiqui, Shuaib; Piney da Silva, José Ramón; Sallent Ribes, Sebastián (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In the evolution of telecommunication industry towards 5G, Ethernet Passive Optical Networks (EPON) technology, with some unique features such as high capacity, low latency, and minimum cost per bit, positions itself as ...

    • Digital Nyquist WDM for access networks using limited bandwidth reflective semiconductor optical amplifiers 

      Lázaro Villa, José Antonio; Knorr, Sebastian; Bernhard, Schrenk; Cano Valadéz, Iván Nicolás; Polo Querol, Víctor; Prat Gomà, Josep Joan; Carena, Andrea; Bosco, Gabriella (Institute of Electrical and Electronics Engineers (IEEE), 2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Digital Nyquist-WDM is experimentally demonstrated using RSOA-based colorless ONUs, providing a 6-fold enhancement of transmission capacity through 25km fiber, and showing digital Nyquist-WDM as promising candidate for ...

    • Direct phase modulation DFBs for cost-effective ONU transmitter in udWDM PONs 

      Cano Valadéz, Iván Nicolás; Lerín de la Santísima Trinidad, Adolfo; Polo Querol, Víctor; Prat Gomà, Josep Joan (2014-05-15)
      Article
      Accés restringit per política de l'editorial
      A technique for direct phase modulating a low-cost distributed feedback laser is presented for user transmitter in ultra dense wavelength division multiplexing passive optical networks. It consists of a simple RC network, ...

    • Direct phase modulation for UDWDM ONU with beat signals 

      Velásquez Micolta, Juan Camilo; Cano Valadez, Iván Nicolás; Tabares Giraldo, Jeison; Polo Querol, Víctor; Prat Gomà, Josep Joan (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      An ONU transmitter for UDWDM PONs based on direct phase modulated distributed feedback lasers (DFB) through digital beat signals is proposed and experimentally tested. The amplitude and duty cycle of the modulating signal ...

    • Diseño proporcionado y realista de una red de acceso Fiber-to-the-home en un entorno semiurbano 

      Peral Aguilera, Carlos (Universitat Politècnica de Catalunya, 2019-02-12)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      Currently, there are many tools is daily life that provide the human being with a better life quality, but there is no doubt that one of the most important is optical fiber. Optical fiber allows long distance communications ...

    • DQPSK directly phase modulated DFB for flexible coherent UDWDM-PONs 

      Cano Valadéz, Iván Nicolás; Lerín de la Santísima Trinidad, Adolfo; Prat Gomà, Josep Joan (2015-09-15)
      Article
      Accés obert
      A bandwidth-limited distributed feedback laser directly phase modulated with a 5-Gb/s differential quadrature phase shift keying (DQPSK) signal is demonstrated in a statistical ultra-dense wavelength division multiplexing ...

    • Dynamic bandwidth allocation algorithms with non-zero laser tuning time in TWDM passive optical networks 

      Cañizares Mata, Kilian (Universitat Politècnica de Catalunya, 2018-09-07)
      Treball Final de Grau
      Accés obert
      The goal of this document is to analyse the functionality of Passive Optical Networks (PONs). The reason for focusing on these technique networks is due to their high efficiency in terms of high bandwidth, high rate, low ...

    • Estudi i simulació de mecanismes d'assignació d'ample de banda en xarxes EPON 

      Luque Ballester, Ester (Universitat Politècnica de Catalunya, 2010-01-25)
      Treball Final de Grau
      Accés obert

    • Experimental demonstration of a statistical OFDM-PON with multiband ONUs and elastic bandwidth allocation 

      Cano Valadéz, Iván Nicolás; Escayola Elias, Francisco Javier; Schindler, Philipp C.; Santos Blanco, M. Concepción; Polo Querol, Víctor; Leuthold, Juerg; Tomkos, Ioannis; Prat Gomà, Josep Joan (Institute of Electrical and Electronics Engineers (IEEE), 2015-01-01)
      Article
      Accés obert
      The statistical orthogonal frequency division multiplexing passive optical network (OFDM-PON) concept with multiband optical network units (ONUs) is experimentally tested with two users and an optical line terminal at 2.5/5 ...

    • Experimental demonstration of active and passive optical networks telemetry 

      Gifre Renom, Lluís; Izquierdo Zaragoza, José Luis; Shariati, Mohammad Behnam; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      A distributed architecture enabling active and passive optical network telemetry is presented; a YANG data model is used for remotely configuring monitoring devices for telemetry purposes. Experimental demonstration is ...

    • Field-Trial of a high-budget, filterless, lambda-to-the-user, UDWDM-PON enabled by an innovative class of low-cost coherent transceivers 

      Presi, Marco; Artiglia, Massimo; Bottoni, Fabio; Cano Valadez, Iván Nicolás; Tabares Giraldo, Jeison; Velásquez Micolta, Juan Camilo; Ghasemi, Saeed; Polo Querol, Víctor; Chu Guang, Yong; Prat Gomà, Josep Joan (2017-09-01)
      Article
      Accés obert
      We experimentally demonstrate an innovative ultradense wavelength division multiplexing (UDWDM) passive optical networks (PON) that implements the full ¿-to-the-user concept in a filterless distribution network. Key element ...

    • Flexible mobile fronthaul with coherent UDWDM-PON 

      Segarra Mullerat, Josep; Sales Zaragozá, Vicente; Prat Gomà, Josep Joan (2018)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      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 ...

    • Flexible resource provisioning of polarization independent coherent PONs based on non-orthogonal multiple access and multiCAP modulation 

      Izquierdo Nuñez, David; Sarmiento Hernández, Samael; Barrio Segura, Miguel; Clemente Vicente, Jesús; Millán, Pablo; Lázaro Villa, José Antonio; Garces Gregorio, Juan Ignacio; Altabas Navarro, José Antonio; Puerta, Rafael; Rommel, Simon; Vegas Olmos, Juan J.; Tafur Monroy, Idelfonso (Institute of Electrical and Electronics Engineers (IEEE); Optical Society of America, 2021-07)
      Article
      Accés obert
      A combined non-orthogonal multiple access (NOMA) and multiband carrierless amplitude and phase modulation (multiCAP) scheme is proposed for flexible resource provisioning in coherent passive optical networks (PONs). While ...

    • Flexible WDM/FTDM passive optical network with RZ-seeded all-optical sub-wavelength grid engine 

      Schrenk, Bernhard; Katopodis, Vasilis; Bauwelinck, Johan; Lázaro Villa, José Antonio; Yin, Xin; Bakopoulos, Paraskevas; Spyropoulou, Maria; Qiu, Xing Z.; Avramopoulos, Hércules (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      All-optical FDM grid generation and channel selection is experimentally demonstrated through optical signal processing. Full-duplex 10G/2×10G transmission with reflective ONUs is validated for 20dB budget and 25km reach. ...

    • Framework de desenvolupament OSS/FTTH 

      Comes Gómez, Xavier (Universitat Politècnica de Catalunya, 2013-02-18)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      Stick&Fiber és una solució empresarial d’un sistema de suport d’operacions, destinada als gestors d’infraestructures de telecomunicacions per a gestionar, mantenir i operar les seves xarxes neutres de fibra òptica fins a ...

    • FTTH Service and Management networks design 

      Arrieta Fernández, Beinat (Universitat Politècnica de Catalunya, 2015-04)
      Treball Final de Grau
      Accés obert
      The present Project shows the services and management networks design for a real telecomunications operator that will opérate in Vallès Oriental. It includes a high level design, a low level design and a business plan.

    • 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 ...