DCO-FBMC-based VLC NOMA with SIC cancellation: enhancing multi-user communication efficiency

In this paper, we propose a novel approach for visible light communication (VLC) employing non-orthogonal multiple access (NOMA) with successive interference cancellation (SIC) in the context of DC coupled Filter Bank Multicarrier (DCO-FBMC) systems. Our proposed scheme, termed "DCO-FBMC-Based VLC NOMA with SIC Cancellation," aims to enhance the efficiency of multi-user communication in VLC networks. By leveraging NOMA techniques, multiple users can share the same spectral resources simultaneously, leading to improved spectral efficiency and user fairness. Additionally, the incorporation of SIC enables efficient interference mitigation, allowing users to decode their signals even in the presence of strong interference. We provide a comprehensive analysis of the proposed scheme, including system architecture, signal processing algorithms, and performance evaluation metrics. Simulation results proof the usefulness of the proposed approach in terms of throughput, number of un-serviced users and bit error rate (BER) validating its potential for practical implementation in VLC systems. In the simulation both line of sight (LoS) and Non (N)-LoS communications are considered and at the SNIR level of 16 dB a BER of 10-3 is achieved.