[1] [1] W. O. Popoola, Z. Ghassemlooy, H. Haas, E. Leitgeb and V. Ahmadi, IET Communications 6, 499 (2012).

[2] [2] Md. Zoheb Hassan, Md. Jahangir Hossain and Julian Cheng, Exact BER Analysis of Subcarrier QAM and PSK Intensity Modulations in Strong Turbulence, International Conference on Computing, Networking and Communications, Optical and Grid Networking Symposium, 478 (2014).

[3] [3] W. Huang, J. Takayanagi, T. Sakanaka and M. Nakagawa, Atmospheric Optical Communication System Using Subcarrier PSK Modulation, IEEE International Conference on Communications, 1597 (1993).

[4] [4] X. Song, F. Yang, J. Cheng and M.-S. Alouini, Journal of Lightwave Technology 33, 161 (2015).

[5] [5] Y. L Gao, J. C. Cartledge, A. S. Kashi, S. S. -H. Yam and Y. Matsui, IEEE Photonics Technology Letters 9, 35 (2017).

[6] [6] S. Hossein. Performance of Subcarrier Intensity Modulated FSO Systems over Gamma–Gamma Turbulence Channels with Pointing Errors, Wireless Personal Communications, 1 (2016).

[7] [7] Han Liqiang; You Yahui; Nie Xiangrong and He Jiahuan, Journal of Optoelectronics·Laser 27, 505 (2016). (in Chinese)

[8] [8] H. Zhu, X. Chen, W. Q. Zhou, Z. Y. Li, X. Zhou and Z. G. Zhangl, A Modified CMA for Blind Equalization and Phase Recovery In Optical Coherent Receivers, Communications and Photonics Conference and Exhibition (ACP), 1 (2009).

[9] [9] Sofien Mhatli; Bechir Nsiri, Mutsam A. Jarajreh, Malek Channoufi and Rabah Attia, Non Linearity Equalization for Coherent Optical OFDM Modem, Science and Information Conference, 660 (2014).

[10] [10] H. Zhang, H. S. Liao and L. Gan, Robust Classification of Quadrature Amplitude Modulation Constellations Based on GMM., IEEE International Conference on Communication Problem – Solving, 546 (2014).

[11] [11] S. S. Lu, W. Wang and G. Y. Wang, Journal of National University of Defense Technology 38, 130 (2016).

[12] [12] J. Q. Shen and Z. Ding, IEEE Transactions on Communications 49, 262 (2001).

[13] [13] M. S. Muhlhaus, M. Oner, O. A. Dobre, H. U. Jkel and F. K. Jondral, A Novel Algorithm for MIMO Signal Classification Using Higher-Order Cumulants, Radio and Wireless Symposium (RWS), 7 (2013).

[14] [14] K. L. Lin, C. T. Lin and Nikhil R. Pal, IEEE Transactions on Nano-Bioscience 9, 278 ( 2010).

[15] [15] B. Y. Pratama and R. Sarno, Personality Classification Based on Twitter Text Using Naive Bayes, KNN and SVM, International Conference on Data and Software Engineering, 170 (2015).

[16] [16] Wang Bin, Chang Faliang and Liu Chunsheng, Journal of Optoelectronics·Laser 27, 625 (2016). (in Chinese)

[17] [17] P. Harrington, Machine Learning in Action, Manning Publications Co., (2012).