Abstract
In this paper, we derive packet's waiting time and total delay for Visible light Communications (VLC). Our analysis is valid for Pulse Amplitude Modulation (PAM) in the presence and absence of channel coding. We assume Poisson arriving packets with rate.. Each packet has to wait in the queue to be served. Then, the packet is removed from the queue after successful transmission. Otherwise, a retransmission is performed until successful reception. The analysis is confirmed with extensive simulation results obtained with MATLAB.