[1] [1] Kawanishi T. THz and Photonic Seamless Communications[J].Journal of Lightwave Technology, 2019,37(7): 1671-1679.

[2] [2] Li K, Yu J. Photonics-aided Terahertz-Wave Wireless Communication[J].Journal of Lightwave Technology, 2022,40(13): 4186-4195.

[3] [3] Li X, Yu J, Chang G K. Photonics-Aided Millimeter-Wave Technologies for Extreme Mobile Broadband Communications in 5G[J].Journal of Lightwave Technology, 2020,38(2): 366-378.

[4] [4] Li X, Yu J, Zhao L, et al. 132-Gb/s Photonics-Aided Single-Carrier Wireless Terahertz-Wave Signal Transmission at 450GHz Enabled by 64QAM Modulation and Probabilistic Shaping[C]. Santiago: 2019 Optical Fiber Communications Conference, 2019.

[5] [5] Wang J, Jia Z S, Campos L A, et al. Delta-Sigma Modulation for Next Generation Fronth-aul Interface[J].Journal of Lightwave Technology, 2019,37(12): 2838-2850.

[6] [6] Bai K, Zou D, Zhang Z, et al. Digital Mobile Fronthaul Based on Performance Enhanced Multi-Stage Noise-Shaping Delta-Sigma Modulator[J].Journal of Lightwave Technology, 2021,39(2): 439-447.

[7] [7] Zhong L, Zou Y, Zhang S, et al. An SNR-improved transmitter of delta-sigma modulation supported ultra-high-order QAM signal for fronthaul/WiFi applications[J].Journal of Lightwave Technology, 2022,40(9): 2780-2790.

[8] [8] Xu T, Xu T, Darwazeh I. Deep Learning for Interference Cancellation in Non-Orthogonal Signal Based Optical Communication Systems[C]. Xiamen: 2019 Photonics & Electromagnetics Research Symposium, 2019.

[9] [9] Zhou W, Shi J, Zhao L, et al. Comparison of Real- and Complex-Valued NN Equalizers for Photonics-Aided 90-Gbps D-band PAM-4 Coherent Detection[J].Journal of Lightwave Technology, 2021,39(21): 6858-6868.

[10] [10] Tu Y, Lin Y, Hou C, et al. Complex-Valued Networks for Automatic Modulation Classification[J].IEEE Transactions on Vehicular Technology, 2020,69(9): 10085-10089.