Modelling Coherent Transmission over Passive Optical Networks for 5G/6G Mobile Fronthauling

We present a software modelling tool developed inside the EU MSCA project EWOC that predicts the physical layer performance of coherent transmission in a metro-access converged network. Our frequency-resolved tool considers a generic $2 \times 2$ optical frequency-dependent channel matrix together with typical coherent receiver impairments expected to limit ultra-high date-rate links required for 5G/6G fronthaling. The simulator can be used as a basis for network planning tools and scalability studies considering the physical layer parameters with a high accuracy and less time and CPU consumption compared to extensive time-domain simulations.