Xiaoshuang Liu, Jianfeng Li, Zhitong Huang, Jianke Li, Lihui Sun. Digital Pre-Distortion Technique for Orthogonal Frequency Division Multiplexing Based LED Nonlinear Channel[J]. Laser & Optoelectronics Progress, 2019, 56(24): 240601
- Laser & Optoelectronics Progress
- Vol. 56, Issue 24, 240601 (2019)
Fig. 1. Block diagrams of Wiener model and Hammerstein model
Fig. 2. Block diagram of DPD based OFDM system
Fig. 3. Experimental setup of visible light communication
Fig. 4. Relationship between input current and output power for LED
Fig. 5. Measured frequency response of LED channel
Fig. 6. BER performance of DCO-OFDM (B I=0.3) with different M I
Fig. 7. Power spectrum density of signals. (a) Power spectrum density for y DPD; (c) power spectrum density of
Fig. 8. DCO-OFDM signal in time domain
Fig. 9. Convergence characteristic of error function
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