The influence of anisotropic weak-to-strong oceanic turbulence on the performance of underwater optical communication (UWOC) systems is investigated in this paper. The Málaga distribution fading model is used to model the statistical distribution of a spherical wave propagating through anisotropic oceanic turbulence, which is a versatile model of weak-to-strong turbulence. First, the scintillation index for a spherical wave propagating in oceanic turbulence is formulated, and closed-form expressions for the outage probability and average channel capacity of the UWOC systems are then proposed in terms of Meijer’s G function. The simulation results demonstrate that both the outage probability and the average channel capacity strongly depend on the parameters of oceanic turbulence, such as the ratio of temperature to the contribution of salinity to the refractive index spectrum, the rate of dissipation of kinetic energy per unit mass of fluid, and the rate of dissipation of mean-squared temperature; they are also related to system parameters such as wavelength and aperture diameter. Numerical results are provided to verify the accuracy of our proposed expressions for outage probability and average channel capacity, and perfect agreement is observed.

中文翻译：

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通过具有马拉加分布的各向异性弱至强海洋湍流传播的光学球面波的中断概率和信道容量

研究了各向异性的弱到强海洋湍流对水下光通信（UWOC）系统性能的影响。马拉加分布衰落模型用于模拟通过各向异性海洋湍流传播的球面波的统计分布，这是一种由弱到强湍流的通用模型。首先，制定了在海洋湍流中传播的球面波的闪烁指数，然后根据迈耶的G函数提出了UWOC系统的中断概率和平均信道容量的闭式表达式。仿真结果表明，中断概率和平均信道容量都强烈依赖于海洋湍流参数，例如温度与盐度对折射率谱的贡献之比，每单位质量流体的动能耗散率和均方温度耗散率等；它们还与系统参数有关，例如波长和孔径。数值结果提供了验证我们提出的断电概率和平均信道容量的表达式的准确性，并且观察到了完美的一致性。