Fig. 1. Constellation points of 8PSK, 16APSK, 32APSK and 64APSK

Fig. 2. Waveform-level post-equalization schematic based on BRNN

Fig. 3. Waveform-to-symbol receiver scheme based on DNN

Fig. 4. Experimental setup of UVLC transmission

Fig. 5. BER versus different taps

Fig. 6. Performance comparison of different waveform-level post equalization methods

Fig. 7. Comparison of communication performance between post-equalization based on BRNN and waveform-to-symbol receiver based on DNN