[1] [1] Yu Hai-feng, Chi Xue-fen and Liu Jian, Optoelectronics Letters 10, 365 (2014).

[2] [2] Deng Rui, Fan Qi-rui, Dong Huan, He Jing and Chen Lin, Journal of Optoelectronics·Laser 26, 877 (2015). (in Chinese)

[3] [3] T. Komine and M. Nakagawa, IEEE Transactions on Consumer Electronics 50, 100 (2004).

[4] [4] Ding J., Huang Z. and Ji Y., Journal of the Optical Society of America A 29, 971 (2012).

[5] [5] Jupeng Ding, Zhitong Huang and Yuefeng Ji, IEEE Communications Letters 16, 439 (2012).

[6] [6] A. Burton, H. Le Minh, Z. Ghasemlooy and S. Rajbhandari, A Study of LED Lumination Uniformity with Mobility for Visible Light Communications, International Workshop on Optical Wireless Communications, 1 (2012).

[7] [7] Chow C. W., Yeh C. H., Liu Y. F., Huang P. Y. and Liu Y., Optics Communications 292, 49 (2013).

[8] [8] Lang Lei and Jia Qian, Journal of Optoelectronics·Laser 26, 81 (2015). (in Chinese)

[9] [9] Rajbhandari S., Chun H., Faulkner G., Cameron K., Jalajakumari A. V. N., Henderson R., Tsonev D., Ijaz M., Zhe Chen, Haas H., Enyuan Xie, McKendry J. J. D., Herrnsdorf J., Gu E., Dawson M. D. and O'Brien D., IEEE Journal on Selected Areas in Communications 33, 1750 (2015).

[10] [10] M. Biagi, T. Borogovac and T. D. C. Little, Journal of Lightwave Technology 31, 3676 (2013).

[11] [11] J. M. Garrido-Balsells and A. Puertanotario, IET Electronics Letters 42, 43 (2006).

[12] [12] LIU Yang and ZHANG Guo-an, Optoelectronics Letters 10, 273 (2014).

[13] [13] Ozaki T., Kozawa Y. and Umeda Y., Improved Error Performance of Variable PPM for Visible Light Communication, International Symposium on Wireless Personal Multimedia Communications (WPMC), 259 (2014).

[14] [14] Petr Chvojka, Stanislav Zvanovec, Paul Anthony Haigh and Zabih Ghassemlooy, Journal of Lightwave Technology 33, 1719 (2015).

[15] [15] Nakagawa M., Tanaka Y., Komine T. and Haruyama S., IEICE Transactions on Communications 86, 2440 (2003).

[16] [16] G. Ntogari, T. Kamalakis, J. Walewski and T. Sphicopoulos, Journal of Optical Communications and Networking 3, 56 (2011).