6 papers
Secrecy Sum Rate Maximization for OIRS-Aided Visible Light Communications with Confidential Messages
Trinh K. Nguyen, Hung K. Hoang, Thanh V. Pham +1
This paper investigates the secrecy sum-rate (SSR) performance of optical intelligent reflecting surface (OIRS)-assisted multi-user visible light communication (VLC) systems under…
Secure RSMA-based Visible Light Networks under Spatial Correlation
Hung K. Hoang, Chuyen T. Nguyen, Thang K. Nguyen +2
This paper investigates the secrecy sum rate (SSR) of rate-splitting multiple access (RSMA)-based visible light communication (VLC) systems considering internal eavesdropping, wher…
Efficient Numerical Modeling of Near-Field Diffraction in ORIS-Assisted Free-Space Optical Links
Tuan A. Hoang, Phuc V. Trinh, Shinya Sugiura +3
This paper investigates near-field propagation in optical reconfigurable intelligent surface (ORIS)-assisted free-space optical (FSO) communication systems. Unlike conventional far…
Multi-user Visible Light Communications with Probabilistic Constellation Shaping and Precoding
Thang K. Nguyen, Thanh V. Pham, Hoang D. Le +2
This paper proposes a joint design of probabilistic constellation shaping (PCS) and precoding to enhance the sum-rate performance of multi-user visible light communications (VLC) b…
Joint Design of Probabilistic Constellation Shaping and Precoding for Multi-user VLC Systems
Thang K. Nguyen, Thanh V. Pham, Hoang D. Le +2
This paper proposes a joint design of probabilistic constellation shaping (PCS) and precoding to enhance the sum-rate performance of multi-user visible light communications (VLC) b…
Practical Design of Probabilistic Constellation Shaping for Physical Layer Security in Visible Light Communications
Thanh V. Pham, Susumu Ishihara
This paper studies a practical design of probabilistic constellation shaping (PCS) for physical layer security in visible light communications (VLC). In particular, we consider a w…