In this paper, we analyze and evaluate the impacts of imperfect channel state information (CSI) short packet communication (SPC) in a non-orthogonal multiple access (NOMA) visible light (VLC) system. We consider downlink NOMA VLC system, which one emitting diode (LED) serves two single-photodiode users with estimation error. To end, derive closed-form expression for block error rate (BLER) CSI ...