[1] [1] LIN B, LAI Q, LUO J, et al. A deep neural networks based demodulator for PD-SCMA-VLC[J]. Optics communications, 2023, 532: 129256.

[2] [2] WANG D, LI C, CHE Y. Tunnel visible light communicationsystem utilizing frequency domain pre-equalization technique[J]. Optoelectronics letters, 2022, 18(8): 484-488.

[3] [3] NIU S, WANG P, CHI S, et al. Enhanced optical OFDM/OQAM for visible light communication systems[J]. IEEE wireless communications letters, 2021, 10(3): 614-618.

[4] [4] CHATURVEDI S, ANWAR D N, BOHARA V A, et al. Low-complexity codebook design for SCMA-based visible light communication[J]. IEEE open journal of the communications society, 2022, 3: 106-118.

[5] [5] LUO Q, LIU Z, CHEN G, et al. Enhancing signal space diversity for SCMA over Rayleigh fading channels[J]. IEEE transactions on wireless communications, 2023.

[6] [6] MIUCCIO L, PANNO D, RIOLO S. A flexible encoding/decoding procedure for 6G SCMA wireless networks via adversarial machine learning techniques[J]. IEEE transactions on vehicular technology, 2023, 72(3): 3288-3303.

[7] [7] AN J, CHUNG W. Single-LED multichannel optical transmission with SCMA for long range health information monitoring[J]. Journal of lightwave technology, 2018, 36(23): 5470-5480.

[8] [8] YANG L, LIN X, MA X, et al. Clipping noise-aided message passing algorithm for SCMA-OFDM system[J]. IEEE communications letters, 2018, 22(10): 2156-2159.

[9] [9] WANG Z, WANG P, NAN X, et al. PAPR reduction by combining clipping and piecewise linear companding for OFDM-based VLC systems[J]. Optical engineering, 2021, 60(6): 066105.

[10] [10] LIAN J, BRANDT-PEARCE M. Clipping-enhanced optical OFDM for visible light communication systems[J].Journal of lightwave technology, 2019, 37(13): 3324-3332.

[11] [11] RAMAZAN M, AMCA H, RIZANER A, et al. A novel μ-law nonlinear companding with modified recoverable upper clipping method for PAPR reduction in ACO-OFDM VLC systems[J]. Optik, 2023, 282.

[12] [12] HOU Y, LV J, ZHANG L, et al. Reduction of peak-to-average power ratio in visible light communication system using clipping and normalized μ-law companding[J]. Journal of optoelectronics·laser, 2022, 33(11): 1192-1200. (in Chinese)

[13] [13] CHEN Y M, WANG P H, CHENG C S, et al. A joint design of SCMA codebook and PTS-based PAPR reduction for downlink OFDM scheme[J]. IEEE transactions on vehicular technology, 2022, 71(11): 11936-11948.

[14] [14] MU H, MA Z, ALHAJI M, et al. A fixed low complexity message pass algorithm detector for up-link SCMA system[J]. IEEE wireless communications letters, 2015, 4(6): 585-588.

[15] [15] GAO Q, HU S, GONG C, et al. Distance-range-oriented constellation design for VLC-SCMA downlink with signal-dependent noise[J]. IEEE communications letters,2019, 23(3): 434-437.

[16] [16] ZHANG S, XU X, LU L, et al. Sparse code multiple access: an energy efficient uplink approach for 5G wireless systems[C]//Proceedings of 2014 IEEE Global Communications Conference, December 8-12, 2014, Austin, TX, USA. New York: IEEE, 2014: 4782-4787.

[17] [17] LIU J, WU G, LI S, et al. On fixed-point implementation of log-MPA for SCMA signals[J]. IEEE wireless communications letters, 2016, 5(3): 324-327.