Currently, some literature has studied the application of RIS to improve the throughput and energy efficiency of URLLC systems. In [11], the authors proposed RIS-assisted full-duplex (FD) URLLC systems based on NOMA to achieve sum-rate maximization. To meet the reliability, delay, and minimum...
In contrast, although offering full or half duplex options, massive MIMO and relay systems necessitate numerous RF chains, resulting in significantly higher hardware costs and energy usage. Backscatter, similar to the RIS in terms of low cost and energy needs, operates passively but generally ...