Exploring physical layer security in underwater optical wireless communication: A concise overview
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https://doi.org/10.54939/1859-1043.j.mst.98.2024.3-14Keywords:
Physical layer security (PLS); Underwater Optical Wireless Communication (UOWC); Secrecy performance improvement techniques.Abstract
Underwater wireless optical communications are a developing alternative to meet the increasing need for high-speed connections in oceans and seas. Optical wireless communications (OWCs) are more secure and less susceptible to eavesdropping compared to acoustic communications or radio frequency (RF) communications due to their narrow optical beam coverage and reliance on line-of-sight components. Nevertheless, the existence of a hostile eavesdropper can compromise the level of confidentiality achieved by OWC networks. This article provides a concise overview of the latest research conducted on physical layer security (PLS) in underwater optical wireless communication (UOWC). Furthermore, this work presents the relevant unresolved matters, approaches for enhancing secrecy performance, and potential areas for further research.
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