In strong oceanic turbulence, the performance of M -ary phase shift keying subcarrier intensity-modulated optical wireless communication (OWC) links is investigated in terms of the bit-error-rate (BER) by considering the effect of anisotropy of the oceanic channel. To calculate the BER of the OWC link, a gamma–gamma statistical channel model is adopted. The extended Huygens–Fresnel principle and the asymptotic Rytov theory are used to obtain the received optical power and the large-scale and small-scale log-intensity variances, respectively. Our graphical illustrations include the BER versus anisotropic factor for various system parameters such as the modulation order, filter bandwidth, link distance, peak amplitude of each subcarrier and the oceanic turbulence parameters.

中文翻译：

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各向异性对在强海洋湍流中工作的M相相移键控子载波强度调制光无线通信链路性能的影响

在强海洋湍流中，通过考虑海洋通道各向异性的影响，以误码率（BER）的方式研究了M相移键控子载波强度调制光无线通信（OWC）链路的性能。为了计算OWC链路的BER，采用了伽马-伽马统计信道模型。扩展的惠更斯-菲涅耳原理和渐近Rytov理论分别用于获得接收的光功率和大，小对数强度方差。我们的图形说明包括各种系统参数（例如调制阶数，滤波器带宽，链路距离，每个子载波的峰值幅度和海洋湍流参数）的BER与各向异性因子。