Regeneration savings in flexible optical networks with a new load-aware reach maximization

We propose and analyze a new load-aware reach maximization procedure based on the Gaussian Noise model for dispersion-uncompensated optical networks with coherent detection. We estimate the opto-electronic regeneration savings with respect to the standard full-load reach approach, and find examples where significant savings can be achieved. The load aware reach and its corresponding optimal power can be computed in real time by the routing and wavelength assignment unit to make statistical decisions about setting-up new lightpaths or regenerating existing ones.