Multilevel polarization shift keying modulation for turbulence-robust underwater optical wireless communication

被引：8

作者：

Liu, Weijie ^{[1
]}

Ye, Zhangwei ^{[1
]}

Huang, Nuo ^{[1
]}

Li, Shangbin ^{[1
,2
]}

Xu, Zhengyuan ^{[1
]}

机构：

[1] Univ Sci & Technol China, CAS Key Lab Wireless Opt Commun, Hefei 230027, Peoples R China

[2] Univ Sci & Technol China, Informat Sci Lab Ctr, Hefei 230027, Peoples R China

来源：

OPTICS EXPRESS | 2023年 / 31卷 / 05期

基金：

中国国家自然科学基金;

关键词：

All Open Access; Gold;

D O I：

10.1364/OE.483397

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Turbulence is an intractable issue for underwater optical wireless communication (UOWC). Most literature has been mainly focused on the modeling of turbulence channels and performance analysis rather than mitigation of the turbulence effect, especially from the experimental aspects. In this paper, a multilevel polarization shift keying (PolSK) modulation based UOWC system is established utilizing a 15 m-long water tank, and the system performance is investigated under specific temperature gradient-induced turbulence and various transmitted optical powers. Experimental results show the feasibility of the PolSK in alleviating the effect of turbulence, and the bit error rate performance significantly outperforms traditional intensity-based modulation schemes which have difficulty in obtaining an optimal decision threshold in a turbulence channel.(c) 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

引用

页码：8400 / 8413

页数：14

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