Performance analysis of hybrid FSO-UWOC dual-hop link for air-ocean communication

This paper presents a hybrid FSO-UWOC dual-hop link for air-ocean high speed wireless optical communication application, where the Gamma-Gamma fading channel distribution is adopted to model the atmospheric turbulence and ocean turbulence. Assuming decode-and-forward (DF) relay scheme and BPSK modulation technology, the mathematical expressions of bit error rate (BER) and outage probability are derived and analyzed for the dual-hop link over turbulence channel. Numerical simulations are presented to verify the accuracy of the mathematical analytical expressions of the hybrid FSO-UWOC dual-hop link.