Performance Analysis of A uRLLC System Based on A Quasi-Static GBSM
Yang Ou, Jie Huang, Xichen Mao, Cheng‐Xiang Wang · 2023
The ultra-reliable and low-latency communication (uRLLC) is one of the most challenging and prominent key application scenarios in the beyond fifth generation (B5G) and sixth generation (6G). Most researches on uRLLC system utilize fading channel models such as Rician,$\mathbf{Nakagami} -m$, and$\kappa-\mu$, which fail to describe specific channel environment. In this paper, a novel quasi-static geometry based stochastic model (GBSM) considering time-frequency limitations is proposed to characterize channel information. Then, based on this channel model, space-time-frequency correlation function (STFCF) is obtained and some key performance indicators (KPIs) of the uRLLC system are analyzed, including capacity, reliability, latency, and achievable data rate (ADR). Results shows that KPIs under proposed GBSM surpass those under fading channel models, which demonstrates that previous researches evaluated KPIs of uRLLC system inaccurately. The proposed GBSM will guide the design and optimization of future uRLLC system.