Enviaments recents

  • 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 ...
  • 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
    Accés obert
    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. ...
  • An architecture to support autonomic slice networking 

    Velasco Esteban, Luis Domingo; Gifre, Lluís; Izquierdo Zaragoza, José Luis; Paolucci, Francesco; Vela, Alba P.; Sgambelluri, Andrea; Ruiz Ramírez, Marc; Cugini, Filippo (2017-09-01)
    Article
    Accés obert
    IEEE Network slices combine resource virtualization with the isolation level required by future 5G applications. In addition, the use of monitoring and data analytics help to maintain the required network performance, while ...
  • Meeting the requirements to deploy cloud RAN over optical networks 

    Velasco Esteban, Luis Domingo; Castro Casales, Alberto; Asensio Garcia, Adrian; Ruiz Ramírez, Marc; Liu, G.; Qin, C.; Proietti, Roberto; Yoo, Sung-Joo Ben (Optical Society of America, 2017-03-01)
    Article
    Accés obert
    Radio access network (RAN) cost savings are expected in future cloud RAN (C-RAN). In contrast to traditional distributed RAN architectures, in C-RAN, remote radio heads (RRHs) from different sites can share baseband ...
  • Virtual network topology adaptability based on data analytics for traffic prediction 

    Morales Alcaide, Fernando; Ruiz Ramírez, Marc; Gifre Renom, Lluís; Contreras Murillo, Luis Miguel; López Álvarez, Victor; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2017-01-26)
    Article
    Accés obert
    The introduction of new services requiring large and dynamic bitrate connectivity can cause changes in the direction of the traffic in metro and even core network segments throughout the day. This leads to large overprovisioning ...
  • Impact of spatial and spectral granularity on the performance of SDM networks based on spatial superchannel switching 

    Behnam Shariati, Mohammad; Rivas Moscoso, José Manuel; Marom, Dan M.; Ben Ezra, Shalva; Klonidis, Dimitrios; Velasco Esteban, Luis Domingo; Tomkos, Ioannis (2017-07-01)
    Article
    Accés obert
    Spatially integrated switching architectures have been recently investigated in an attempt to provide switching capability for networks based on spatial division multiplexing (SDM) fibers, as well as to reduce the ...
  • Modeling of integrated erbium-doped waveguide amplifiers with overlapping factors methods 

    Vallés Brau, Juan Antonio; Lázaro Villa, José Antonio; Rebolledo Sanz, Miguel Ángel (1996-09)
    Article
    Accés restringit per política de l'editorial
    An analysis of the applicability of overlapping factors methods to the modeling of integrated erbium-doped waveguide amplifiers is presented. These methods offer as main advantage a considerable seduction in computation ...
  • Prospects of new planar optical waveguides based on eutectic microcomposites of insulating crystals: The ZrO 2 (c)-CaZrO 3 erbium doped system 

    Orera, Víctor M.; Peña Torre, José Ignacio; Merino Rubio, Rosa Isabel; Lázaro Villa, José Antonio; Vallés Brau, Juan Antonio; Rebolledo Sanz, Miguel Ángel (1997-11-10)
    Article
    Accés restringit per política de l'editorial
    A new approach to produce structured optical materials is described. The method relies on the capability of growing eutectic crystals of wide optical band gap materials by directional solidification procedures. The laser ...
  • Numerical simulation of bending effects in erbium-doped fibre amplifiers 

    Lázaro Villa, José Antonio; Rebolledo Sanz, Miguel Ángel (Institute of Physics (IOP), 1996-05)
    Article
    Accés restringit per política de l'editorial
    A numerical simulation of the effects caused by bends in erbium-doped fibres is presented. The perturbation of the gain and amplified spontaneous emission has been analysed with a model of the evolution of the pump, signal ...
  • Cost-effective DWDM ROADM design for flexible sustainable optical metro–access networks 

    Sarmiento Hernández, Samael; Altabas, Jose Antonio; Izquierdo, David; Garces, Ignacio; Spadaro, Salvatore; Lázaro Villa, José Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2017-12)
    Article
    Accés obert
    Architectural changes are required for the underlying networks to support the expected Internet data traffic volume growth caused by the popularization of cloud services, 5G-based services, and social networks, to provide ...
  • Evaluation of core-continuity-constrained ROADMs for flex-grid/MCF optical networks 

    Moreno Muro, Francisco Javier; Rumipamba Zambrano, Rubén Darío; Pavón Mariño, Pablo; Perelló Muntan, Jordi; Gene Bernaus, Joan M.; Spadaro, Salvatore (Institute of Electrical and Electronics Engineers (IEEE), 2017-11-01)
    Article
    Accés restringit per política de l'editorial
    To effectively keep pace with the global IP traffic growth forecasted in the years to come, flex-grid over multi-core fiber (MCF) networks can bring superior spectrum utilization flexibility, as well as bandwidth scalability ...
  • Non-orthogonal multiple access and carrierless amplitude phase modulation for flexible multi-user provisioning in 5G mobile networks 

    Altabás Navarro, José Antonio; Rommel, Simon; Puerta, Rafael; Izquierdo, David; Garces, Ignacio; Lázaro Villa, José Antonio; Vegas Olmos, Juan José; Tafur Monroy, Idelfonso (2017-10-07)
    Article
    Accés obert
    In this paper, a combined non-orthogonal multiple access (NOMA) and multiband carrierless amplitude phase modulation (multiCAP) scheme is proposed for capacity enhancement of and flexible resource provisioning in 5G mobile ...

Mostra'n més