Ziyue Zhu, Mengxin Zhao, Yichen Zhang, Jian Chen. MIMO Equalization Technology Based on Neural Network in High-Speed IM-DD Mode Division Multiplexing Transmission System[J]. Acta Optica Sinica, 2021, 41(14): 1406003
- Acta Optica Sinica
- Vol. 41, Issue 14, 1406003 (2021)
Fig. 1. Structure of the 2×2 IM-DD MDM transmission system
Fig. 2. Structure of the NN-based equalizer
Fig. 3. Algorithm flowchart of the NN-based equalizer
Fig. 4. Structure of the proposed DFNN equalizer
Fig. 5. Experimental setup for IM-DD MDM
Fig. 6. BER versus number of taps. (a) BER versus L1 by setting L2=101; (b) BER versus L2 by setting L1=161,201,201
Fig. 7. BER performance comparison of LP11a and LP11b for obtb transmission at the transmission rate of 2×50 Gbit/s
Fig. 8. BER performance comparison of LP11a and LP11b for 1000-m FMF transmission at the transmission rate of 2×50 Gbit/s
Fig. 9. BER performance comparison under different bit rates. (a) obtb transmission; (b) 1000-m FMF transmission
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Table 1. Computation complexity comparison between LMS, NN, and DFNN
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