The effect of turbulence on NLOS underwater wireless optical communication channels [Invited]

被引：0
|
作者：
Mohammed Sait [1 ]
Xiaobin Sun [1 ]
Omar Alkhazragi [1 ]
Nasir Alfaraj [1 ]
Meiwei Kong [1 ]
Tien Khee Ng [1 ]
Boon S.Ooi [1 ]
机构：
[1] Photonics Laboratory, King Abdullah University of Science and Technology (KAUST)
来源：
Chinese Optics Letters | 2019年 / 17卷 / 10期
关键词：
Invited; The effect of turbulence on NLOS underwater wireless optical communication channels;
D O I：
暂无
中图分类号：
O357.5 [湍流（紊流）]; TN929.1 [光波通信、激光通信];
学科分类号：
080103 ; 0803 ; 080704 ;
摘要：
Conventional line-of-sight underwater wireless optical communication(UWOC) links suffer from huge signal fading in the presence of oceanic turbulence due to misalignment, which is caused by variations in the refractive index in the water. Non-line-of-sight(NLOS) communication, a novel underwater communication configuration,which has eased the requirements on the alignment, is supposed to enhance the robustness of the UWOC links in the presence of such turbulence. This Letter experimentally and statistically studies the impact of turbulence that arises from temperature gradient variations and the presence of different air bubble populations on NLOS optical channels. The results suggest that temperature gradient-induced turbulence causes negligible signal fading to the NLOS link. Furthermore, the presence of air bubbles with different populations and sizes can enhance the received signal power by seizing the scattering phenomena from an ultraviolet 377 nm laser diode.
引用
收藏
页码：84 / 91
页数：8
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