Single-Fiber Single-Wavelength Bidirectional Digital Subcarrier Point-to-Multipoint Coherent Systems for Beyond 5G Transport. - Pablo Torres-Ferrera; Giuseppe Parisi; M. Distefano; Rafal Kapuscinski; G. Gambari; Roberto Magri; H. Olsson; M. Sezer Erkilinc; Johan Bäck; Chris Fludger; Antonio Tartaglia; Antonio Napoli (ECOC, 2025)