Error rate performance analysis of optical links between high altitude platforms with misalignment fading by Hoyt distribution

The more reality misalignments model with Hoyt distribution is used to analyze performance for optical links between high altitude platforms. Compared with the recent work in terrestrial FSO, it is proved that the variance ratio have more significant effect on error performance for optical links over long distance. Then, the expression for the pairwise error probability is analyzed and applied to obtain upper bounds on the BER performance for coded optical communications. Simulation results show that coding technique can improve error performance of optical links, but it also can enhance the influences of the variance ratio.