A low-complexity 64QAM-based probabilistically shaped OFDM for W-band RoF system

We experimentally demonstrated a low-complexity probabilistic shaping (PS) 64QAM-OFDM in an IM-DD-based W-band RoF System. After 45-km SSMF and 4-m wireless transmission, the experimental results show that its receiver sensitivity is better than that of uniformly distributed-OFDM (UD-OFDM).