[Copyright notice]

The following topics are dealt with: visible light communication link performance; multi-band carrier-less amplitude and phase modulation; decision feedback equalization; bandlimited VLC systems; optical OFDM; index modulation; frequency domain equalization; indoor visible light communication; high-capacity aeronautical communication networks; free-space optical links; multiple-input multiple-output underwater wireless optical communication; intensity scintillation; LEO downlink; clear-air turbulence effects modeling; terrestrial free-space optical channels; satellite free-space optical channels; focused laser beams; collimated laser beams; SEP analysis; SIM-MPSK; non-line-of-sight ultraviolet communications; atmospheric turbulence channels; satellite-to-ground optical communication; VCSEL; optical feedback; all-optical relay-assisted FSO system; spatial diversity; orbital angular momentum; multi-hop hybrid FSO-RF communication systems; MISO FSO systems; MU-MIMO precoding; non-orthogonal multiple access; NOMA; cooperative OFDM-based multi-user visible light communication systems; adaptive power control algorithms; underwater wireless optical CDMA cellular networks; software defined VLC systems; indoor VLC simulator; NIR measurement device; photon detection characteristics; and SPAD array optical receivers.