[1] [1] I. B. Djordjevic. LDPC-coded MIMO optical communication over the atmospheric turbulence channel using Q-ary pulse-position modulation［J］. Opt. Express, 2007, 15(16): 10026～10032

[2] [2] S. G. Wilson, M. Brandt-Pearce, Q. Cao et al.. Optical MIMO transmission with Q-ary PPM for atmosphere channel［J］. IEEE J. Sel. Areas. Commum., 2003, 23(9): 1090～1094

[3] [3] J. Tomazl, J. Igor, S. S. Muhammed. Simplified soft value extraction for M-PPM-modulated signals in FSO systems［C］. International Journal of Electronics and Communications, 2009, 63(7): 595～599

[4] [4] Hu Hao, Wang Hongxin, Zhou Min et al.. Modeling and analyzing of error performance for pulse position modulation and digital pulse interval modulation under turbulence［J］. Chinese J. Lasers, 2010, 37(5): 1269～1274

[5] [5] Cheng Gang, Wang Hongxin, Sun Xiaoming et al.. Dual pulse-pulse interval modulation for optical wireless communications［J］. Chinese J. Lasers, 2010, 37(7): 1750～1755

[6] [6] Chen Dan, Ke Xizheng, Qu Fei. Research on homomorphism filtering technology of wireless optical communication based on four frequency shift keying modulation ［J］. Chinese J. Lasers, 2011, 38(2): 0205001

[7] [7] S. Stephanie, F. Damien, J.-V. Anne et al.. LDPC code design and performance analysis on OOK chi-square-based optical channels［J］. IEEE Photon. Technol. Lett., 2009, 21(17): 1190～1192

[8] [8] I. B. Djordjevic, S. Denic, J. Anguita et al.. LDPC-coded MIMO optical communication over the atmospheric turbulence channel［J］. J. Lightwave Technol., 2008, 26(5): 478～487

[9] [9] S. Stéphanie, J.-V. Anne, C. Jean-Pierre. Soft decision LDPC decoding over chi-square based optical channels［J］. J. Lightwave Technol., 2009, 27(16): 3540～3545

[10] [10] K. Chitra, V. C. Ravichandran. Turbo-coding of coherence multiplexed optical PPM CDMA system with balanced detection［J］. Am. J. Appl. Sci., 2007, 4(5): 264～268

[11] [11] Chen Jun, Huang Dexiu, Yuan Xiuhua. Analysis of free space system based on twofold Turbo code ［J］. Chinese J. Lasers, 2006, 33(11): 1532～1536

[12] [12] Chen Dan, Ke Xizheng. Analysis on error rate of wireless optical communication using subcarrier modulation on Turbo code［J］. Acta Optica Sinica, 2010, 30(10): 2859～2863

[13] [13] S. M. Haas, J. H. Shapiro. Capacity of wireless optical communication［J］. IEEE J. Sel. Areas in Commun., 2003, 21(8): 1346～1357

[14] [14] D. A. Mohamed, Awad Dabbo, Steve Hranilovic. MIMO optical wireless channel using halftoning［C］. IEEE International Conference on Communication, 2008, 5: 1360～1364

[15] [15] K. Chakraborty. Capacity of the MIMO optical fading channel［J］. 2005, ISIT: 530～534

[16] [16] K. Chakraborty. Outage capacity of MIMO poisson fading channel［J］. IEEE Transactions on Information Theory, 2008, 54(11): 4887～4907

[17] [17] I. I. Kim, H. Hakakha, P. Adhikari. Scintillation reduction using multiple transmitters ［C］. SPIE, 1997, 2990: 102～113

[18] [18] S. G. Wilson, M. Brandt-Pearce, Q. Cao et al.. Free-space optical MIMO transmission with Q-ary PPM［J］. IEEE Trans. Commun., 2005, 53(8): 1402～1412

[19] [19] Tao Chunkan, Tao chunkuang. Information Theory of Optics ［M］.Beijing: Science Press,1999. 35～36