Novel multi-user MC-CSK modulation technique in visible light communication

A novel multi-user modulation technique is proposed by using Manchester Coded Code Shift Keying (MC-CSK) system along with Double Padded-Modified Prime Code Sequence (DP-MPCS) in the visible light communication (VLC). In the VLC link, MC-CSK employed to enhance the bit rates and reduce BER includes effective fluctuation. In this work, the direct current in modulated signal, which includes a series of 0’s or 1’s are decreased by using Manchester coding. The proposed MC-CSK technique, however, uses M signaling waveforms which are mostly derived from a single pseudo random noise circular shift code. The proposed MC-CSK, system performance is compared with conventional modulation technique. Eventually, the results indicate that the MC-CSK coding focus on DP-MPCS outperforms the system BER performance, mitigate the interference, and, improve the system throughput over the conventional modulation techniques.