Joint Power Allocation and IRS Phase Control Using a Feasibility-Preserving TD3 for Delay-Sensitive Opportunistic NOMA-Based IoT Networks
Intelligent reflecting surfaces (IRSs) and hybrid orthogonal frequency-division multiple access/non-orthogonal multiple access (OFDMA–NOMA) can improve connectivity and spectral efficiency in dense cognitive Internet of Things (IoT) networks, but their joint control is challenging under dynamic channel availability and...