Subcarrier Index Modulation Super-Nyquist Carrierless Amplitude Phase Modulation for Visible Light Communication Systems

• DOI: 10.1109/jlt.2021.3099713
• Publication Date: 2021-07-26T21:54:33Z
• Authors: Zhe Wang; Junwen Zhang; Zhixue He; Peng Zou; Nan Chi
• Keywords: Nyquist rate; Modulation (music); Spectral Efficiency; Bandlimiting

In the past decade, novel index modulation (IM) has emerged as a promising technology widely employed in wireless communications. this paper, subcarrier super-Nyquist carrierless amplitude phase (SIM-SCAP) scheme is proposed and investigated to enhance system spectral efficiency (SE) energy of multiband CAP ( <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">m</i> -CAP) bandlimited visible light communication (VLC) systems. By innovatively combining technique with non-orthogonal -CAP technique, SIM-SCAP can sustain higher SE than along reduced complexity for transceivers. Furthermore, ICI mitigation schemes are further throughput performance scheme. It shown that DSP achieves ∼30% enhancement compared under maximum bandwidth minimum transmission rate requirements, yields Q factor gain 5.5 dB. The results validate unveiling advantage offering high transmissions, which candidate designing multi-user access optical