Impact of Traffic Load and Spectral Occupancy on Gaussian Noise Models Performance for Multiband Networks
Impact of Traffic Load and Spectral Occupancy on Gaussian Noise Models Performance for Multiband Networks, Proc 13th IEEE/IET International Symposium on Communication Systems, Networks and Digital Signal Processing CSNDSP, Oporto, Portugal, Vol. , pp. - , July, 2022.
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In a network scenario, wavelength divisionmultiplexing
channels are added and dropped leading to fluctuations
on the network traffic loads along the optical path.
In this work, a comparison between the optical signal-to-noise
ratio (OSNR) predictions of the recently proposed closed-form
generalized Gaussian noise (GGN) model and a closed-form
Gaussian noise (GN) model that does not take into account the
stimulated Raman scattering (SRS) is performed, for different
network traffic loads and spectral occupancy over the entire C+L
band. In all results obtained, the maximum difference between
the OSNR predictions of GN (without SRS) and GGN models
closed forms is below 0.7 dB at optimum OSNR and maximum
C+L band occupancy. For channel launch powers higher than
the optimum, the OSNR differences increase up to 3 dB.