URLLC and eMBB Multiplexing with RIS: Modeling, Analysis, and Optimization

Reconfigurable Intelligent Surfaces (RISs)-assisted technology has the potential to enhance service coverage’ reduce latency, and save energy in Ultra-Reliable and Low-Latency Communications (URLLC) and Enhanced Mobile Broadband (eMBB) multiplexing systems. However, in URLLC and eMBB multiplexing systems, low-priority eMBB services can experience interruptions from tem-porarily inserted high-priority URLLC services, resulting in significant transmission delays and traffic congestion. Furthermore, varying the services capabilities between different nodes can lead to increased latency and backlog violations. This paper offers an overview of RIS-assisted URLLC and eMBB multiplexing systems, discussing their applications, challenges, and solutions. In this paper, we propose optimizing spectrum sharing and resource allocation based on accurate latency estimation, followed by performing primary simulations to demonstrate the effectiveness.