Transformer Aided Faster Than Nyquist Rate Wireless Optical Filter Bank Multicarrier Detection Algorithm

Xuan Chen; Minghua Cao; Yue Zhang; Huiqin Wang; Shengchun Han

doi:10.3788/AOS241411

Acta Optica Sinica, Volume. 45, Issue 1, 0106004(2025)

Transformer Aided Faster Than Nyquist Rate Wireless Optical Filter Bank Multicarrier Detection Algorithm

Xuan Chen, Minghua Cao^*, Yue Zhang, Huiqin Wang, and Shengchun Han

Author Affiliations

School of Computer and Communication, Lanzhou University of Technology, Lanzhou 730050, Gansu , China

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Figures & Tables(9)

Fig. 1. OFBMC-FTN system model

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Fig. 2. Bit error ratio of theoretical and simulated for OFBMC-FTN system with different turbulence intensities

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Fig. 3. Spectral efficiency comparison between the proposed system and other systems

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Fig. 4. Structure of the FBMCFormer signal detection algorithm

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Fig. 5. Trained MSE loss of FBMCFormer with different turbulence intensities

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Fig. 6. Bit error ratio performance of FBMCFormer detection algorithm with different turbulence intensities

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Fig. 7. Bit error ratio performance of FBMCFormer detection algorithm with different packing factors

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Fig. 8. Computational complexity comparison between FBMCFormer and ML detection algorithm

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Table 1. Spectral efficiency comparison of different systems
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Table 1. Spectral efficiency comparison of different systems
System Spectral efficiency /（bit·s^-1·Hz^-1）
OOFDM $\frac{(N / 2 - 1) l o g_{2} M}{(N + 1) (1 + ψ)}$
DCO-FBMC $\frac{u (N / 2 - 1) l o g_{2} M}{[O N + (u - 1) N / 2] (1 + ψ)}$
ACO-FBMC $\frac{u (N / 4) l o g_{2} M}{[O N + (u - 1) N / 2] (1 + ψ)}$
OFBMC-FTN $\frac{u (N / 2 - 1) l o g_{2} M}{τ [O N + (u - 1) N / 2] (1 + ψ)}$

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Xuan Chen, Minghua Cao, Yue Zhang, Huiqin Wang, Shengchun Han. Transformer Aided Faster Than Nyquist Rate Wireless Optical Filter Bank Multicarrier Detection Algorithm[J]. Acta Optica Sinica, 2025, 45(1): 0106004

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