为了解决光载无线(radio-over-fiber, RoF)通信系统发射机光功率受限问题,同时提高信息传输的可靠性,结合低密度奇偶校验(low-density parity-check, LDPC)码与概率整形(probabilistic shaping, PS)技术,提出一种LDPC-PS-64QAM方案来优化RoF系统的传输特性.该方案采用标志取反法对64正交振幅调制(quadrature amplitude modu...
By using our proposed ROS-CVNN classification method, single-lane 10 Gbaud 335 GHz PS-64QAM fiber-wireless transmission over 200 m free-space distance is experimentally realized, and the experimental results show that the efficient data rate is 44 Gbit/s considering the soft-decision forward-...
We demonstrated PM-64QAM, 20×124.8-Gb/s Nyquist-WDM over 1306 Km of PSCF in an EDFA-only submarine system configuration. The raw (net) SE was 10.4 (8.67) b/s/Hz, thanks to digital spectral shaping. The Tx DACs operated at a record-low 1.15 sample/symb thanks to advanced anti...