Huiqin Wang, Weiyu Zhou, Qihan Tang, Zhen Wang, Pengfei Wu, Qingbin Peng, yue Zhang. Three-Stage Stepwise Detection Algorithm for Zero-Padded Dual-Mode Optical OFDM Index Modulation[J]. Acta Optica Sinica, 2024, 44(11): 1106003
- Acta Optica Sinica
- Vol. 44, Issue 11, 1106003 (2024)
Fig. 1. ZDM-OOFDM-IM system model
Fig. 2. Transmission rates of OOFDM-IM, DM-OOFDM-IM, and ZDM-OOFDM-IM systems
Fig. 3. Distributed detection algorithm based on KMC++
Fig. 4. BER of different ZDM-OOFDM-IM systems
Fig. 5. BER of OOFDM-IM, DM-OOFDM-IM, and proposed systems
Fig. 6. BER of the proposed (4,2,1,2,4) system under different turbulence intensities
Fig. 7. Effect of decoding algorithms on BER of ZDM-OOFDM-IM (4, 2, 1, 2, 4) system
Fig. 8. Effect of modulation order and detection algorithm on BER of system
Fig. 9. Experimental device of ZDM-OOFDM-IM system
Fig. 10. Experimental values of BER for (4, 2, 1, 2, 2) and (4, 2, 1, 4, 4) systems using ML and proposed algorithms
Fig. 11. Effect of decoding algorithms on BER of ZDM-OOFDM-IM (4, 2, 1, 2, 4) system
Fig. 12. Complexity comparison of proposed system using different decoding algorithms. (a) Effect of modulation order on complexity;(b) effect of number of subcarrier blocks on complexity
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Table 1. Comparison of computational complexity of different algorithms for online detection
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