Spectral and Energy Efficiency of DCO-OFDM in Visible Light Communication Systems with Finite-Alphabet Inputs Ruixin Yang, Shuai Ma, Zihan Xu, Hang Li, Xiaodong Liu, Xintong Ling, Xiong Deng, Xun Zhang, Shiyin Li January 2022 Cite Next Performance Analysis for DF Relay-Aided Visible Light Communication System With NOMA Previous A joint backscatter and VLC-NOMA communication scheme for B5G/6G umMTC system