Now showing items 1-14 of 14

  • ALLIANCE Project: Architecting a knowledge-defined 5G-enabled network infrastructure 

    Careglio, Davide; Spadaro, Salvatore; Cabellos Aparicio, Alberto; Lázaro Villa, José Antonio; Perelló Muntan, Jordi; Barlet Ros, Pere; Gené Bernaus, Joan M.; Paillissé Vilanova, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Open Access
    Leaving the current 4th generation of mobile communications behind, 5G will represent a disruptive paradigm shift integrating access networks, ultra-high capacity access/metro/core optical networks and intra-datacentre ...
  • Assessment of Flex-grid/SDM backbone networks under inter-core XT-limited transmission reach 

    Perelló Muntan, Jordi; Gené Bernaus, Joan M.; Lázaro Villa, José Antonio; Pagès Cruz, Albert; Spadaro, Salvatore (Institute of Electrical and Electronics Engineers (IEEE), 2015)
    Conference report
    Open Access
    In the present paper, we estimate the transmission reach of the optical signals through several state-of-the-art multi-core fibers reported in the literature considering ASE noise and inter-core crosstalk. Using these ...
  • Capacity quantification of joint-switching-enabled flex- grid/SDM optical backbone networks 

    Rumipamba Zambrano, Rubén Darío; Perelló Muntan, Jordi; Gené Bernaus, Joan M.; Spadaro, Salvatore (Optical Society of American (OSA), 2017)
    Conference report
    Open Access
    We quantify the network capacity scaling from 7 to 30 spatial channels. While multifiber provides a 5x capacity increase, MCF limits it to 4x and 2x in national and continental backbone networks, respectively.
  • Cost-effective spatial super-channel allocation in Flex-Grid/MCF optical core networks 

    Rumipamba Zambrano, Rubén Darío; Perelló Muntan, Jordi; Gené Bernaus, Joan M.; Spadaro, Salvatore (2018-01-01)
    Article
    Restricted access - publisher's policy
    Space Division Multiplexing (SDM) is a key technology to cope with the bandwidth limitations of single mode fibers. Multi-Core Fibers (MCFs) are considered as a promising candidate technology to implement SDM, due to their ...
  • 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; Gené Bernaus, Joan M.; Spadaro, Salvatore (Institute of Electrical and Electronics Engineers (IEEE), 2017-11-01)
    Article
    Open Access
    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 ...
  • Flex-Grid/SDM backbone network design with inter-core XT-limited transmission reach 

    Perelló Muntan, Jordi; Gené Bernaus, Joan M.; Pagès Cruz, Albert; Lázaro Villa, José Antonio; Spadaro, Salvatore (Institute of Electrical and Electronics Engineers (IEEE), 2016-08-01)
    Article
    Restricted access - publisher's policy
    Spatial division multiplexing (SDM) has been presented as a key solution to circumvent the nonlinear Shannon limit of standard single-core fibers. To implement SDM, multi-core fiber (MCF) technology becomes a top candidate ...
  • Joint PMD and Chromatic Dispersion Compensation Using an MLSE 

    Gené Bernaus, Joan M.; Winzer, Peter J.; Chandrasekhar, Sethumandhavan; Kogelnik, Herwig (2006)
    Conference report
    Restricted access - publisher's policy
    Experimental investigations show that maximum likelihood sequence estimation (MLSE) in a 10.7 Gb/s non return-to-zero system improves by 60-70% the tolerance to first-order polarization mode dispersion (PMD), even in the ...
  • Modified duobinary polarization-shift keying transmission scheme 

    Gené Bernaus, Joan M.; Soler Rocasalbas, Marçal; Contreras Leyva, Miguel A.; Comellas Colomé, Jaume; Prat Gomà, Josep Joan (2003)
    Conference lecture
    Restricted access - publisher's policy
    A new version of duobinary polarization-shift keying scheme is proposed. The relocation of the duobinary filter at the receiver side and the optimization of both transmitter and receiver electrical filters offer a receiver ...
  • On the scalability of dynamic Flex-Grid/SDM optical core networks 

    Rumipamba Zambrano, Rubén Darío; Perelló Muntan, Jordi; Gené Bernaus, Joan M.; Spadaro, Salvatore (2018-09-04)
    Article
    Restricted access - publisher's policy
    Future optical core networks realizing Flex-Grid and Space Division Multiplexing (Flex-Grid/SDM) will be key to effectively cope with the rapid growth of the Internet traffic, thanks to their superior capacity and spectrum ...
  • Quaternary optical transmission system combining phase and polarization shift keying 

    Comellas Colomé, Jaume; Gené Bernaus, Joan M.; Prat Gomà, Josep Joan (2004-07)
    Article
    Open Access
    A new optical transmission scheme which combines polarization-shift keying and differential phase-shift keying on the same optical carrier is proposed. Simulations carried out show a considerable tolerance toward different ...
  • Reduction of the tuning time of 1.5-µm three-section DBR lasers by controlling the transient currents 

    de Sousa, Ana Belén; Prat Gomà, Josep Joan; Gené Bernaus, Joan M. (2000)
    Conference report
    Restricted access - publisher's policy
    A dynamical simulation model for three-section DBR laser is extended to analyse the thermal effect under continuous tuning. A new method to compensate the thermal drifts is implemented, and we have simulated a nonintrusive ...
  • SDN-enabled flexible optical node designs and transceivers for sustainable metroaccess networks convergence 

    Sarmiento Hernández, Samael; Montero Herrera, Rafael; Altabas, Jose Antonio; Izquierdo, David; Agraz Bujan, Fernando; Pagès Cruz, Albert; Perelló Muntan, Jordi; Gené Bernaus, Joan M.; Alonso Varela, Marc; Pascual, Álvaro; Garces, Ignacio; Spadaro, Salvatore; Lázaro Villa, José Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Conference report
    Restricted access - publisher's policy
    The Internet data traffic constant growth caused by the popularization of cloud services, mobile and social networks, is being stressed by the advent of 5G technologies. Hence, architectural changes are required at the ...
  • Square-root strategy: a novel method to linearize an optical communication system with electronic equalizers 

    Prat Gomà, Josep Joan; Napoli, Antonio; Gené Bernaus, Joan M.; Omella Cáncer, Mireia Esther; Poggiolini, P.; Curri, Vittorio (2005)
    Conference report
    Restricted access - publisher's policy
    We demonstrate a nonlinear function after the photodetector that linearizes dispersion-limited IM-DD systems, enhancing the performance of linear electronic equalization. Results showed a clear improvement in terms of ...
  • SUNSET: sustainable network infrastructure enabling the future digital society 

    Lázaro Villa, José Antonio; Spadaro, Salvatore; Perelló Muntan, Jordi; Gené Bernaus, Joan M.; Altabas, Jose Antonio; Pagès Cruz, Albert; Careglio, Davide; Barlet Ros, Pere; Cabellos Aparicio, Alberto; Solé Pareta, Josep (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Conference report
    Restricted access - publisher's policy
    The ICT eco-system is constantly growing in traffic demands, with emerging cloud services, mobile and social network technologies to be integrated in 5G networks. New architectural changes at the underlying networks are ...