Statistical signal processing, optical and wireless communications, integrated communication and sensing, machine learning, next-generation broadband access networks
R. Zhang, W.J. Jiang, K. Kuzmin, Y. Weng, W. Mou, G.K. Chang, W. Way, " The Impact of Local Oscillator Frequency Jitter and Laser Linewidth to Ultra High Baud Rate Coherent Systems ", in Journal of Lightwave Technology, vol. 38, no. 6, pp. 1138-1147, 2020.
R. Zhang, Y.W. Chen, W. Mou, G.K. Chang, " Rate Redundancy and Entropy Allocation for PAS-OFDM based Mobile Fronthaul ", in Journal of Lightwave Technology, vol. 38, no. 16, pp. 4260-4269.
R. Zhang, K. Kuzmin, W.J. Jiang, G. Giaretta, T. Tomimoto, Y. Weng, G.K. Chang, and W. Way, " Impact of laser flicker noise and linewidth on 64 to 96 Gbaud/DP-nQAM metro coherent optical links ", Optics Letters. 45, 1220-1223 (2020).
R. Zhang, F. Lu, M. Xu, S. Liu, P.C. Peng, S. Shen, H. Cho, J. He, Q. Zhou, S. Yao, G.K. Chang, " An Ultra-reliable MMW/FSO A-RoF System based on Coordinated Mapping and Combining for 5G and Beyond Mobile Fronthaul ", in Journal of Lightwave Technology 36 (20), 4952-4959, 2018.
R. Zhang, P.C. Peng, X. Li, S. Liu, Q. Zhou, J. He, Y.W. Chen, S. Shen, S. Yao, G.K. Chang, " 4×100-Gb/s PAM-4 FSO Transmission Based on Polarization Modulation and Direct Detection ", IEEE Photonics Technology Letters, vol. 31, no. 10, pp. 755-758, 15 May, 2019.
R. Zhang, Y.W. Chen, W. Mou, S.Yao, G.K. Chang, " Entropy Allocation Optimization for PS-OFDM with Constellation Partitioning based Modeling ", Journal of Lightwave Technology, 38, 6024-6030 (2020).
R. Zhang, X. Tang, C.W. Hsu, Y.W. Chen, G.K. Chang, "Semi-supervised and Supervised Nonlinear Equalizers in Fiber-FSO Converged System ", Journal of Lightwave Technology 2021.
R. Zhang, Y.W. Chen, K. Kuzmin, W. Way, "800G/λ Self-Homodyne Coherent Links With Simplified DSP for Next-Generation Intra-Data Centers ", Journal of Lightwave Technology 2022.