MODE DIVISION MULTIPLEXING ENABLED SECURITY ENHANCED VLC SYSTEM EMPLOYING 2-D WMZCC CODES

Abstract

Optical code division multiplexing (OCDMA), a popular multiple access technique in VLC systems, offers excellent security while supporting several users. The non-adjacent weights (W), time (t) dimension based optical coding, two-dimensional (2D) Weight Managed Zero Cross Correlation (WMZCC), and better security are all introduced in this work. In a 5 user×100 Gbps OCDMA system using 2D-WMZCC codes, Laguerre-Gaussian (LG) modes are investigated in terms of Q factor, log symbol error rate (SER), and bit error rate (BER). In proposed 2D-WMZCC codes, it has been shown that HG modes exhibit greater data eavesdropping resistance than LG modes.