Abstract
In this paper, we present a novel multiuser indoor visible light communication (VLC) system based on code shift keying (CSK) modulation. The proposed CSK scheme employs M signaling waveforms each obtained from the circular shift of a single fundamental PN code. In this proposed scheme, the performance is investigated in the presence of jamming and/or interference from other users. In addition, the system performance of CSK is compared with traditional on-off keying (OOK) based system. The simulation results show that the proposed CSK is more reliable than OOK in multiuser systems.
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