Deploying the reconfigurable intelligent surface (RIS) in wireless networks is getting tremendous attention due to its potential to provide alternative propagation paths for high-frequency signals and mitigate the impact of blockage and penetration losses. In this letter, we introduce the intelligent surface selection while considering a vehicular network scenario. Similar to the well-studied relay selection, we investigate the possibility of applying the selection concept to RIS, which enables the transmitter to select the best RIS among multiple surfaces. As evaluation metrics to investigate the performance of our scheme, we derive the ergodic capacity and the average symbol error probability (SEP). Moreover, we investigate the outage probability using Monte Carlo simulation.

中文翻译：

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用于无线车载通信的可重构智能表面选择

在无线网络中部署可重构智能表面 (RIS) 受到极大关注，因为它有可能为高频信号提供替代传播路径并减轻阻塞和穿透损失的影响。在这封信中，我们在考虑车载网络场景的同时介绍了智能表面选择。与经过充分研究的继电器选择类似，我们研究了将选择概念应用于 RIS 的可能性，这使发射机能够在多个表面中选择最佳 RIS。作为研究我们方案性能的评估指标，我们推导出遍历容量和平均符号错误概率（SEP）。此外，我们使用蒙特卡罗模拟研究了中断概率。