Now showing items 1-11 of 11

    • Autonomic transmission through pre-FEC BER degradation prediction based on SOP monitoring 

      Shariati, Mohammad Behnam; Boitier, F.; Ruiz Ramírez, Marc; Layec, Patricia; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Restricted access - publisher's policy
      An Autonomic Transmission Agent based on machine-learning is proposed for excessive bit-error-rate prediction resulting from real-time analysis of state-of-polarization (SOP). The accuracy and speed of the agent enables ...
    • Design, monitoring and performance evaluation of high capacity optical networks 

      Shariati, Mohammad Behnam (Universitat Politècnica de Catalunya, 2019-02-22)
      Doctoral thesis
      Open Access
      Internet traffic is expected to keep increasing exponentially due to the emergence of a vast number of innovative online services and applications. Optical networks, which are the cornerstone of the underlying Internet ...
    • Free space intra-datacenter interconnects based on 2D optical beam steering enabled by photonic integrated circuits 

      Chaintoutis, Charidimos; Shariati, Mohammad Behnam; Bogris, Adonis (2018-09-01)
      Article
      Open Access
      Data centers are continuously growing in scale and can contain more than one million servers spreading across thousands of racks; requiring a large-scale switching network to provide broadband and reconfigurable interconnections ...
    • Learning life cycle to speed up autonomic optical transmission and networking adoption 

      Velasco Esteban, Luis Domingo; Shariati, Mohammad Behnam; Boitier, Fabien; Layec, Patricia; Ruiz Ramírez, Marc (Institute of Electrical and Electronics Engineers (IEEE), 2019-04-05)
      Article
      Open Access
      Autonomic optical transmission and networking requires machine learning (ML) models to be trained with large datasets. However, the availability of enough real data to produce accurate ML models is rarely ensured since new ...
    • Monitoring and data analytics: Analyzing the optical spectrum for soft-failure detection and identification 

      Shariati, Mohammad Behnam; Vela, Alba P.; Ruiz Ramírez, Marc; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference lecture
      Restricted access - publisher's policy
      Failure detection is essential in optical networks as a result of the huge amount of traffic that optical connections support. Additionally, the cause of failure needs to be identified so failed resources can be excluded ...
    • Optical signal tracking for robust PAM4 deployment in filterless metro network scenarios 

      Shariati, Mohammad Behnam; Fresi, Francesco; Ruiz Ramírez, Marc; Cugini, Filippo; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Conference report
      Open Access
      Highly accurate and reliable optical signal tracking is proposed that estimates sub-GHz laser drift failures by analyzing spectra acquired by cost-effective coarse-granular OSAs. Its application on PAM4 systems in filterless ...
    • Optimum carrier to signal power ratio evaluation for spectrally efficient systems in the context of OFDM-PONs 

      Shariati, Mohammad Behnam (Universitat Politècnica de Catalunya, 2014-09-12)
      Master thesis
      Open Access
      Spectral efficiency of direct detection (DD) orthogonal frequency division multiplexing (OFDM) transmission systems is studied in the context of passive optical networks (PONs).Impacts of limited roll-off factor of shaping ...
    • Out-of-field generic ML training with in-field specific adaptation to facilitate ML deployments 

      Shariati, Mohammad Behnam; Ruiz Ramírez, Marc; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Conference report
      Open Access
      A two-phase strategy to facilitate ML algorithm deployment in real networks is demonstrated: out-of-field training uses data from simulation and testbed experiments with generic equipment whereas in-field adaptation is ...
    • Real-time spectrum surveillance in filterless optical networks 

      Shariati, Mohammad Behnam; Ruiz Ramírez, Marc; Sgambelluri, Andrea; Cugini, Filippo; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Restricted access - publisher's policy
      A monitoring system exploiting data analytics and cost-effective optical spectrum analyzers with under 1.2GHz resolution is proposed. Its performance is demonstrated in a filterless network experimental test-bed. The system ...
    • Soft failure localization in elastic optical networks 

      Vela, A.P.; Shariati, Mohammad Behnam; Ruiz Ramírez, Marc; Comellas Colomé, Jaume; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Restricted access - publisher's policy
      Soft failure localization to early detect service level agreement violations is of paramount importance in elastic optical networks (EONs), while it allows anticipating possible hard failure events. Nowadays, effective and ...
    • Spectrally and spatially flexible optical networks: recent developments and findings 

      Shariati, Mohammad Behnam; Klonidis, Dimitrios; Marom, Dan M.; Comellas Colomé, Jaume; Velasco Esteban, Luis Domingo; Tomkos, Ioannis (Institute of Electrical and Electronics Engineers (IEEE), 2018-09-27)
      Conference report
      Restricted access - publisher's policy
      Space division multiplexing (SDM) has been proposed as the ultimate solution to address the capacity crunch of optical transport networks. The efficient utilization of SDM requires some forms of spatial integration which ...