BER variation of an optical wireless communication system in underwater turbulent medium with any temperature and salinity concentration

被引:37
作者
Ata, Yalcin [1 ]
Yao, Jinren [2 ]
Korotkova, Olga [3 ]
机构
[1] OSTIM Tech Univ, Comp Engn Dept, TR-06374 Ankara, Turkey
[2] Harbin Inst Technol, Sch Phys, Harbin 150001, Peoples R China
[3] Univ Miami, Dept Phys, Coral Gables, FL 33146 USA
关键词
Oceanic turbulence; Bit-error-rate (BER); Signal-to-noise ratio (SNR); Oceanic propagation; Optical wireless communication; SCINTILLATION; SPECTRUM;
D O I
10.1016/j.optcom.2021.126751
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The effect of natural turbulence on an underwater wireless optical communication (UWOC) link using the on-off-key (OOK) modulation scheme and a coherent plane wave is analyzed in terms of the signal-to-noise ratio (SNR) and the bit-error-rate (BER). The optical turbulence is considered to be isotropic and homogeneous, which is typically the case along the horizontal paths in relatively shallow channels, under a variety of conditions for the average temperature (< T > in [0 degrees C, 30 degrees C]) and average salinity concentration (< S > in [0ppt, 40ppt] ) of water that cover most of the naturally available Earth's basins. It is found that apart from the strength of turbulence, the BER is in direct relation with < T > and < S >, and can vary through several orders of magnitude with the change in these quantities within their natural ranges. In addition, the effects of the source wavelength, the temperature-salinity gradient ratio, the temperature dissipation rate, the energy dissipation rate and the probability density function model of the fluctuating irradiance on the UWOC system are examined in detail.
引用
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页数:7
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