Interference Management and Power Allocation for NOMA Visible Light Communications Network

TL;DR

This paper proposes an optimized power allocation scheme for NOMA-based visible light communication networks, accounting for residual interference, to enhance user data rates under QoS constraints.

Contribution

It introduces a novel power allocation method for NOMA VLC networks that considers residual interference, improving the network's efficiency and user experience.

Findings

Optimized power allocation improves user rates.

Residual interference impacts NOMA VLC performance.

Numerical results validate the proposed scheme.

Abstract

To design an efficient interference management and multiple access scheme for visible light communication (VLC) network, this letter leverages the non-orthogonal multiple access (NOMA), which has received significant attention in the $5^{th}$ generation wireless communication. With the residual interference from the successive interference cancellation in NOMA taken into account, we optimize the power allocation for NOMA VLC network to improve the achievable user rate under user quality of service (QoS) constraint. The performance of the proposed approaches is evaluated by the numerical results.