The solution of mobile phone users and the need for high-speed data services that meet the traffic requirements of existing 4G networks, 5G networks have become the core technology and implementation technology for next-generation communication networks. A MIMO-OFDM a fully generalized LED modulation system is proposed for VLC communications. LED signals are used in innovative ways as well as OFDM signal time/frequency field formation issues to improve the efficient spectrum (SE). We did the analytical investigation and experimentally demonstrated the proposed ACO-OFDM for massive MIMO internal systems. Moreover, traditional OFDM performance is examined in this comparison system. The results of the analysis showed that massive MIMO-VLC that uses ACO-OFDM show less computational complexity or comparison than systems that use OFDM. Finally, the results show that our scheme can achieve better energy efficiency and spectrum performance with acceptable BER performance compared to related methods.