On Capacity of Downlink Underwater Wireless Optical MIMO Systems With Random Sea Surface

In this letter, we focus on the relationship among channel capacity, signal-to-noise ratio (SNR), water types, wind speed, and characteristics of transmiter/receiver array such as inter-spacing and link range for downlink underwater wireless optical communications (UWOC) multiple-input multiple-output (MIMO) systems. Numerical results suggest that more turbid water, larger link range, and larger inter-spacing may reduce the channel capacity, and meanwhile more turbid water and larger link range can weaken the effects of random slopes and inter-spacing at the expense of larger SNR to balance the channel capacity.