Now showing items 1-8 of 8

  • A comparative study of impairments aware optical networks planning tools 

    Azodolmolky, Siamak; Angelou, Marianna; Tomkos, Ioannis; Morea, Annalisa; Pointurier, Yvan; Solé Pareta, Josep (2010)
    Conference report
    Open Access
    Transparent and translucent optical networks are widely considered as the prime candidates for the core network technology of the future. These networks provide ultra high speed end-to-end connectivity with high quality ...
  • Analysis of performance degradation in sleep-mode enabled core optical networks [invited] 

    Pagès Cruz, Albert; Tornatore, Massimo; Perelló Muntan, Jordi; Spadaro, Salvatore; Morea, Annalisa (Institute of Electrical and Electronics Engineers (IEEE), 2015-03-01)
    Article
    Open Access
    Energy efficiency is an important target for the management of wavelength-division-multiplexing-based core optical networks. A possible power management strategy for energy-efficient optical networks consists in putting ...
  • Demonstration of GMPLS-controlled device power management for next generation green optical networks 

    Morea, Annalisa; Perelló Muntan, Jordi; Agraz Bujan, Fernando; Spadaro, Salvatore (2012)
    Conference report
    Open Access
    We propose GMPLS protocol enhancements enabling dynamic power state management of optoelectronic network devices for setup-time-aware differentiated connection provisioning. Daily energy savings of 56% are demonstrated in ...
  • Evolution from wavelength-switched to flex-grid optical networks 

    Lord, Andrew; Rong Zhou, Yu; Jensen, Rich; Morea, Annalisa; Ruiz Ramírez, Marc (Springer, 2016)
    Part of book or chapter of book
    Restricted access - publisher's policy
    This book presents advances in the field of optical networks - specifically on research and applications in elastic optical networks (EON). The material reflects the authors’ extensive research and industrial activities ...
  • Impact of transponders and regenerators wake-up time on sleep-mode enabled translucent optical networks 

    Pagès Cruz, Albert; Tornatore, Massimo; Perelló Muntan, Jordi; Spadaro, Salvatore; Morea, Annalisa (2014)
    Conference report
    Restricted access - publisher's policy
    Sleep-mode enabled transponders and regenerators yield to substantial energy savings; however, their non-negligible wake-up time may degrade the network performance. We show that an appropriate dimensioning of the devices ...
  • Link vs. opto-electronic device sleep mode approaches in survivable green optical networks 

    Perelló Muntan, Jordi; Morea, Annalisa; Spadaro, Salvatore; Tornatore, Massimo (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Conference lecture
    Open Access
    Energy savings of link and OE device sleep mode approaches are compared in 1:1 protected optical networks, together with a hybrid solution combining both of them. The proposed hybrid solution can decrease network energy ...
  • Routing protocol enhancements for power state engineering of green network elements 

    Verchere, Dominique; Morea, Annalisa; Spadaro, Salvatore; Le Sauze, Nicolas (IEEE, 2012)
    Conference report
    Restricted access - publisher's policy
    A routing protocol is enhanced to advertise the power state of node interfaces for wavelength switched optical networks to allow tuning the power consumption according to the data traffic demands. By engineering the different ...
  • Traffic variation-aware networking for energy efficient optical communications 

    Morea, Annalisa; Perelló Muntan, Jordi; Spadaro, Salvatore (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Conference report
    Restricted access - publisher's policy
    'Traffic-aware' networking is a solution allowing the improvement of the energy efficiency of optical networks. The implementation of these networking schemes makes possible to adapt the number of fully powered systems to ...