Figure 4From: On the Capacity of FSO Links over Gamma-Gamma Atmospheric Turbulence Channels Using OOK Signaling(a) Maximization of the capacity bound in (11) and mutual information over the input distribution for the atmospheric turbulent optical channel when , a rectangular pulse shape with and a scintillation index of are adopted. (b) Mutual information versus the input distribution for a value of SNR of dB and different levels of turbulence strength.Back to article page