Minghua Cao, Wei Zhang, Huiqin Wang, Jiayun Lü. Point-by-Point Elimination Adaptive Pre-Equalization Algorithm in Faster-than-Nyquist Wireless Optical Communications[J]. Acta Optica Sinica, 2020, 40(24): 2406003
- Acta Optica Sinica
- Vol. 40, Issue 24, 2406003 (2020)
Fig. 1. Diagram of proposed adaptive pre-equalization FTN atmospheric optical communication system
Fig. 2. Signal waveform and amplitude frequency characteristics. (a) FTN signals; (b) FTN signals after pre-equalization; (c) amplitude frequency characteristics
Fig. 3. Comparison of 4PAM signal sampling value and pre-equalization signal sampling value
Fig. 4. Comparison of theoretical BER and simulation BER
Fig. 5. Relationship between BER and SNR under different τ. (a) τ=0.9; (b) τ=0.6; (c) τ=0.4; (d) τ=0.2
Fig. 6. Relationship between τ and BER
Fig. 7. Computation complexity
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Table 1. Weight table of ISI
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Table 2. Simulation parameters
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