First Investigation of fast OFDM Radio over fibre system at 60 GHz using direct laser modulation

摘要

Radio over fibre (RoF) system and orthogonal frequency division multiplexing (OFDM) have attracted much interest for increasing the capacity and coverage area for future broadband wireless millimetre waves (mm-waves) at 60GHz [1, 2]. Fast OFDM (F-OFDM), another promising multicarrier scheme, reduces the subcarrier spacing to half of symbol rate per subcarrier [3]. When compared to the conventional OFDM, this format exhibits greatly improved performance in frequency offset compensation in coherent detection, and better tolerance to phase noise in self-coherent detection.