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Securing visible light communication (VLC) systems with physical-layer technologies has drawn increasing attention. In this paper, we leverage both transmit beamforming and jamming techniques to enhance communication secrecy for a multiple-input single-output (MISO) VLC system with presence of multiple eavesdroppers. The transmit beamformer and jamming precoder are jointly optimized in the sense that...
In this study, we aim to maximize the achievable rate for a visible light communication (VLC) downlink multiuser multiple-input–single-output (MISO) system deployed with zero-forcing (ZF) beamforming. By incorporating the ZF, transmit signal's nonnegativity, and light-emitting diode (LED) maximum permissible current constraints, we formulate the rate maximization problem of interest, which possesses...
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