Fig. 1. Experimental setup of FSO communication using patterned modulation and bucket detection. BE: beam expander, Ap: aperture, BP: beam splitter, BL: background light, Te: telescope, DN: device noise, BD: bucket detector, Co: computer.

Fig. 2. (a) The results of the BER performance as a function of the changes in the average transmittance at different SNR levels (classical detection). (b) The results of BER performance as a function of the changes in the average transmittance at different SNR levels (semi-classical detection).

Fig. 3. Experimental results of FSO communication using pattered modulation and bucket detection. (a) is the original signal, (b) is the reconstructed signal, and (c) shows the corresponding bit errors of (a) and (b). The value “1” represents that the original signal is “1” and the reconstructed signal is “0.” The value “−1” represents that the original signal is “0” and the reconstructed signal is “1.” The value “0” represents the correct communication.

Table 1. Experimental Results of the Eight Random Signals (With Moving Diffusers)

Table 2. Experimental Results of the Eight Random Signals (With Environmental Illuminations)

Table 3. Experimental Results of the Eight Random Signals (With Moving Diffusers and Environmental Illuminations)

Table 4. Results of ENT Test