digital wireless links with multilevel phase modulation based on photonics.

摘要

digital wireless links with multilevel phase modulation based on photonics.; Transmission system wireless digital information comprising at least one optical infrastructure (1, 4b) for generating, encoding, modulation and demodulation of a wireless signal, at least one transmission system and cordless reception (3a, 3b) and least one interface (2, 4a) between each optical infrastructure and each electrical, system characterized in that the optical structure is adapted to perform a differential multilevel phase-shift keying. Thanks to this system a high spectral efficiency without requiring carrier synchronization is achieved.