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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...
We demonstrate the first experimental implementation of intensity-modulation and direct-detection 7.6Gb/s DBPSK-based DSB optical Fast-OFDM with a reduced subcarrier spacing equal to half of the symbol rate per subcarrier over 40km SMF.
We propose symmetric extension based guard interval (GI) to enable CD compensation with one-tap equalizers after discrete-cosine transform in optical fast-OFDM, and experimentally demonstrate 20Gbit/s 4-ASK transmission over 124km field-installed SMF with varied GI length.
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