Pairwise Coded mCAP with Chaotic Dual-Mode Index Modulation for Secure Bandlimited VLC Systems

In this paper, for the first time, we propose and experimentally demonstrate a novel pairwise coding (PWC)-based multiband carrierless amplitude phase (mCAP) modulation with chaotic dual-mode index (DM) secure bandlimited visible light communication (VLC) systems. The combination of mCAP DM can sustain higher spectral efficiency (SE) compared conventional (IM), while PWC be employed to efficiently mitigate signal-to-noise ratio (SNR) imbalance caused by low-pass frequency response emitting diodes (LEDs). Moreover, is enhanced two-dimensional (2D) encryption scheme guarantee security useful information in VLC Simulation experimental results successfully verify superiority proposed PWC-based mCAP-DM two-level over other benchmark schemes.