Dear Ahmad Atieh,
I have experience with the MAC Layer of GPON/XGPON like DBA and DWA using OMNET++. Now my supervisor suggested doing work on the PHY layer of PON. As per my knowledge, Optisystem does not support the MAC layer; therefore, I want to use my C++ algorithm with slight modification and test it for Rogue ONU using the PHY Layer of PON. Let me try to understand suggested Optisystem examples about XGPON/OFDM PON scenarios.
Thank you very much for your suggestions.