基于垂直腔面发射激光器（VCSEL）的发光可重构智能表面（LeRIS）实现定位、建图与通信的集成
Integrated Localization, Mapping, and Communication through VCSEL-Based Light-emitting RIS (LeRIS)
AI总结：
本文提出基于VCSEL的LeRIS框架，可联合实现用户定位、避障建图与毫米波通信，通过仿真验证其能达到厘米级定位精度、可靠障碍物检测及频谱效率与用户速率增益。
摘要：
发光可重构智能表面（LeRIS）近期成为可编程无线环境（PWE）中为可靠毫米波（mmWave）通信提供所需空间感知的有前景方案。然而，现有LeRIS设计依赖发光二极管的漫射发射，而激光雷达（LiDAR）辅助方案需要专用传感模块，阻碍其直接集成到RIS面板中。本文开发了一种基于垂直腔面发射激光器（VCSEL）的LeRIS框架，以联合支持用户定位、避障感知建图和毫米波通信。具体而言，利用VCSEL的窄高斯光束和多模特性，从接收信号强度测量中推导用户位置与姿态联合恢复的闭式方案。根据仿真结果，5个VCSEL足以实现唯一恢复，而在特定几何条件下，该需求可降至3个双模VCSEL。此外，推导位置误差界（PEB）以表征可实现的定位精度，同时利用反射信号到达时间测量识别受阻链路，实现抗阻塞的LeRIS路由。结果表明，所提框架实现了厘米级定位精度、可靠障碍物检测，以及显著的频谱效率和最小用户速率增益，从而确立基于VCSEL的LeRIS作为空间感知且具备弹性的PWE解决方案的地位。
英文摘要：
Light-emitting reconfigurable intelligent surfaces (LeRISs) have recently emerged as a promising solution for providing the spatial awareness required for reliable millimeter-wave (mmWave) communication in programmable wireless environments (PWEs). However, existing LeRIS designs rely on the diffuse emission of light-emitting diodes, while LiDAR-assisted solutions require dedicated sensing modules that hinder their direct integration into RIS panels. In this paper, a vertical-cavity surface-emitting laser (VCSEL)-based LeRIS framework is developed to jointly support user localization, obstacle-aware mapping, and mmWave communication. Specifically, the narrow Gaussian beams and multimode operation of VCSELs are exploited to derive closed-form schemes for the joint recovery of the user position and orientation from received signal strength measurements. According to the provided simulation results, is shown that five VCSELs are sufficient for unique recovery, while this requirement is reduced to three dual-mode VCSELs under specific geometric conditions. Furthermore, the position error bound (PEB) is derived to characterize the achievable localization accuracy, while reflected-signal time-of-arrival measurements are employed to identify obstructed links and enable blockage-resilient LeRIS routing. As a result, the proposed framework achieves cm-level localization accuracy, reliable obstacle detection, and substantial spectral-efficiency and minimum-user-rate gains, thereby establishing VCSEL-based LeRISs as a solution for spatially aware and resilient PWEs.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
