Lightpath Establishment Assisted by Offline QoT Estimation in Transparent Optical Networks

  title={Lightpath Establishment Assisted by Offline QoT Estimation in Transparent Optical Networks},
  author={Nicola Sambo and Yvan Pointurier and Filippo Cugini and Luca Valcarenghi and Piero Castoldi and Ioannis Tomkos},
  journal={IEEE/OSA Journal of Optical Communications and Networking},
We propose lightpath establishment techniques for transparent optical networks, valid for both centralized path computation (i.e., performed by a path computation element-PCE) and distributed path computation (i.e., performed by each ingress node). The proposed techniques rely on correlating the end-to-end quality of transmissions (QoT) (e.g., optical-to-signal-noise ratio-OSNR) of lightpaths already set up to evaluate the QoT of lightpaths to be established. The correlation is leveraged by two… CONTINUE READING
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