Physical Layer Security in NOMA-Based VLC Systems With Optical Intelligent Reflecting Surface: A Max-Min Secrecy Data Rate Perspective

• Published in: IEEE internet of things journal Vol. 12; no. 6; pp. 7180 - 7194
• Main Authors: Liu, Zehao, Yang, Fang, Sun, Shiyuan, Song, Jian, Han, Zhu
• Format: Journal Article
• Language: English
• Published: Piscataway IEEE 15.03.2025; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Algorithms; Automation; Constraints; Decoding; Eavesdropping; Internet of Things; MISO communication; NOMA; Nonorthogonal multiple access; Nonorthogonal multiple access (NOMA); Occlusion; optical intelligent reflecting surface (OIRS); Optical receivers; Optical reflection; Optical transmitters; Optical wireless; Physical layer security; physical layer security (PLS); Reconfigurable intelligent surfaces; Resource management; Security; semidefinite relaxation (SDR); successive convex approximation (SCA); Visible light communication; visible light communication (VLC); Wireless communications

Optical intelligent reflecting surface (OIRS) is a promising technology in visible light communications (VLCs), which can help VLC overcome the shortcoming of being susceptible to occlusion. It is shown that OIRS has many advantages for nonorthogonal multiple access (NOMA)-based VLC due to its abili...