This paper evaluates the performance of a reconfigurable intelligent surface (RIS)-assisted mobile system with random user mobility. The RIS is assumed to act as an intelligent access point and the system channel follows Fisher–Snedecor ($\mathcal{F}$) distribution with the user mobility subjected to random way point (RWP) model. Based on this, the novel probability distribution function (PDF) are derived for the received power at the mobile unit. Through this, the analytical closed-form expression for the outage probability, average bit error rate (ABER) and the average capacity under different transmission policies are then obtained. To gain future physical insight to the derived expressions, the asymptotic expressions for the system performance are obtained through which the system diversity gain is determined. The accuracy of these derived expressions is validated through the Monte Carlo simulations. Thus, the findings show that different system and channel parameters affect the performance of the concerned system and the system diversity is the function of number of RIS elements and channel severity parameter $m$. With the increase in the number of reflecting elements of RIS, there is significant improvement in the system performance.

本文评估了具有随机用户移动性的可重构智能表面（RIS）辅助移动系统的性能。假定RIS充当智能接入点，并且系统通道遵循Fisher-Snedecor（$\mathcal{F}$）的分布，并且用户移动性受到随机路径点（RWP）模型的影响。基于此，针对移动单元处的接收功率导出新颖的概率分布函数（PDF）。由此，获得了不同传输策略下的中断概率，平均误码率（ABER）和平均容量的解析式。为了获得对派生表达式的未来物理洞察力，获得了系统性能的渐近表达式，通过它可以确定系统分集增益。这些派生表达式的准确性通过蒙特卡洛模拟得到了验证。从而，$米$。随着RIS反射元素数量的增加，系统性能得到了显着改善。