Fig. 1. Schematic description of layers in non-uniform atmospheric smoke and fog channel

Fig. 2. BER curves for uplink and downlink transmissions in different channels. (a) No smoke affecting channel uplink performance; (b) performance of uplink in light smoke channels; (c) no smoke affecting channel downlink performance; (d) performance of downlink in light smoke channels

Fig. 3. Curves of BER with the number of layers under different channel conditions

Fig. 4. BER curves of uplink and downlink in atmospheric channels with and without smoke distribution

Fig. 5. BER curves of uplink and downlink in integrated channel with receiving aperture Drx=0.1m and Drx=0.5m

Fig. 6. BER curves of uplink and downlink in the integrated channel as a function of the receiving aperture

Fig. 7. BER curves of uplink and downlink in integrated channels under different zenith angle conditions