Fig. 1. The structure of CPWL model

Fig. 2. Modification of the bias function

Fig. 3. The transmission characteristics of memory Rapps LED model

Fig. 4. Schematic diagram of DCO-OFDM VLC system with adaptive indirect learning architecture with AFP pre-distorter

Fig. 5. The output of AFP model time domain and frequency domain

Fig. 6. NMSE performance of different modeling schemes versus the number of training samples

Fig. 7. AM/AM curves before and after pre-distortion

Fig. 8. Comparison of constellation diagram before and after pre-distortion

Fig. 9. BER comparison of different schemes