Maximizing URLLC Reliability Through JPSA for URLLC Services in IRS-Aided Terahertz Networks

In this paper, we propose a novel framework to integrate the intelligent reconfigurable surface (IRS) in terahertz (THz) networks, with co-existing ultra-reliable low-latency communication (URLLC) and enhanced mobile broadband (eMBB) services. To meet URLLC latency constraints, the URLLC traffic is scheduled along with eMBB traffic, which poses a significant resource allocation challenge. To address this concern, in this paper, we propose a joint power and service allocation (JPSA) framework to maximize URLLC reliability while ensuring eMBB data rates. Furthermore, to address the challenging NP-hard mixed-integer nonlinear programming (MINLP) problem, we decompose the resource allocation problem into the URLLC power allocation and service allocation sub-problems. More specifically, we suggest a one-to-one matching game for service allocation. Our simulation results demonstrate that the proposed scheme outperforms baseline methods, particularly in terms of enhancing the reliability of URLLC user equipment (uUEs).