[1] Abbas H S, Gregory M A. The next generation of passive optical networks: a review[J]. Journal of Network and Computer Applications, 67, 53-74(2016).

[2] Tang M Z, Sun H, He R X et al. Energy-efficient dynamic wavelength and bandwidth allocation algorithm supporting differentiated services for TWDM-PON[J]. Laser & Optoelectronics Progress, 56, 180601(2019).

[3] Li S S, Cheng M F, Chen Y T et al. Enhancing the physical layer security of OFDM-PONs with hardware fingerprint authentication: a machine learning approach[J]. Journal of Lightwave Technology, 38, 3238-3245(2020).

[4] Han M X, Wu Y T, Zhang Q W et al. Secure algorithm for suppressing peak-to-average power ratio in OFDM-PON systems[J]. Acta Optica Sinica, 39, 0506004(2019).

[5] Ni W L, Zheng Y F, Feng C Y. Application of pilot-assisted peak-to-average power ratio reduction technology in optical orthogonal frequency division multiplexing communication system[J]. Laser & Optoelectronics Progress, 56, 140601(2019).

[6] Xiao Y Q, Wang Z Y, Cao J et al. Time-frequency domain encryption with SLM scheme for physical-layer security in an OFDM-PON system[J]. IEEE/OSA Journal of Optical Communications and Networking, 10, 46-51(2018).

[7] Hu X N, Yang X L, Shen Z W et al. Chaos-based partial transmit sequence technique for physical layer security in OFDM-PON[J]. IEEE Photonics Technology Letters, 27, 2429-2432(2015).

[8] Zhuo X H, Bi M H, Hu Z R et al. Secure scheme for OFDM-PON system using TR based on modified Henon chaos[J]. Optics Communications, 462, 125304(2020).

[9] Li C H, Wu Y T, Yu Y et al. Dynamic encryption scheme based on channel phase information in OFDM-PON system[J]. Acta Optica Sinica, 40, 1006004(2020).

[10] Zhao J Y, Liu B, Mao Y Y et al. High security OFDM-PON with a physical layer encryption based on 4D-hyperchaos and dimension coordination optimization[J]. Optics Express, 28, 21236-21246(2020).

[11] Xiao Y Q, Chen Y T, Long C X et al. A novel hybrid secure method based on DNA encoding encryption and spiral scrambling in chaotic OFDM-PON[J]. IEEE Photonics Journal, 12, 1-15(2020).

[12] Chen Y X, Huang Y T, Han Y et al. Multi scrolls chaotic encryption scheme for CO-OFDM-PON[J]. Optics Express, 28, 19808-19817(2020).

[13] Wu T W, Zhang C F, Wei H H et al. PAPR and security in OFDM-PON via optimum block dividing with dynamic key and 2D-LASM[J]. Optics Express, 27, 27946-27961(2019).

[14] Bi M H, Zhuo X H, Yang G W et al. Chaotic Arnold transform and chirp matrix encryption scheme for enhancing the performance and security of OFDM-PON[J]. Optical Fiber Technology, 51, 64-70(2019).

[15] Cang S J, Li Y, Xue W et al. Conservative chaos and invariant tori in the modified Sprott A system[J]. Nonlinear Dynamics, 99, 1699-1708(2020).

[16] Seleznev A, Mukhin D, Gavrilov A et al. Bayesian framework for simulation of dynamical systems from multidimensional data using recurrent neural network[J]. Chaos, 29, 123115(2019).

[17] Xia C. Design of new dissipative and conservative chaotic systems and its synchronous control[D]. Chongqing: Chongqing University of Posts and Telecommunications(2018).

[18] Liu Y Q. Degradation analysis, optimization strategy and application for the digital chaotic systems[D]. Guilin: Guangxi Normal University(2018).

[19] Yuan F, Deng Y, Li Y X et al. A cascading method for constructing new discrete chaotic systems with better randomness[J]. Chaos: an Interdisciplinary Journal of Nonlinear Science, 29, 053120(2019).

[20] Liu C Y, Ding Q. A modified algorithm for the logistic sequence based on PCA[J]. IEEE Access, 8, 45254-45262(2020).

[21] Hu Z Y, Chan C K. A 7-D hyperchaotic system-based encryption scheme for secure fast-OFDM-PON[J]. Journal of Lightwave Technology, 36, 3373-3381(2018).

[22] Guo Y, Jing S W, Zhou Y Y et al. An image encryption algorithm based on Logistic-Fibonacci cascade chaos and 3D bit scrambling[J]. IEEE Access, 8, 9896-9912(2020).

[23] Liu X Y, Cao Y P, Lu P. Research on optical image encryption technique with compressed sensing[J]. Acta Optica Sinica, 34, 0307002(2014).

[24] Tao S, Tang C, Lei Z K. Image encryption based on vector decomposition and chaotic random phase mask[J]. Laser & Optoelectronics Progress, 57, 041002(2020).

[25] Tian Y H. Research on channel estimation and coding in OFDM-PON[D]. Shanghai: Shanghai Jiao Tong University(2014).