Fig. 1. Schematic diagram of the RIS-assisted MUD-RF/FSO hybrid system in the presence of interference

Fig. 2. Effect of different numbers of users, numbers of interferences, and their signal-to-noise ratios on system outage probability

Fig. 3. Effect of different numbers of reflective elements and threshold thresholds on the system outage probability

Fig. 4. Effect of different ratios of aperture radius and beam width on system outage probability

Fig. 5. Effect of different modulation methods on the average bit error rate of the system

Fig. 6. Effect of different numbers of users and interfering signals on the average bit error rate of the system

Fig. 7. Effect of standard deviation of different pointing error angles and ICRN deflection error angles on the average bit error rate of the system