论文标题
同时室内和室外3D本地化，并带有星形辅助毫米波系统
Simultaneous Indoor and Outdoor 3D Localization with STAR-RIS-Assisted Millimeter Wave Systems
论文作者
论文摘要
最近已经确定了同时传输（折射）和反映可重构智能表面（星际摩托车），以提高光谱/能量效率并扩大通信范围。但是，尚未探索它们增强并发室内和室外本地化的潜力。在本文中，我们研究了基本限制，即通过Fisher Information分析的CramérRao下限（CRLB），以三维（3D）的定位性能，并在毫米波频率下具有星形ris。研究了两个移动站（MSS）之间的折射与反射之间的功率分解以及反射之间的影响。通过最大化与星形反射和折射矩阵相对应的两个子空间之间的主角度，我们能够找到这些同时操作的最佳解决方案。我们验证当系统参数得到充分优化时，室内和室外MSS都可以实现高临界性3D定位。
Simultaneously transmitting (refracting) and reflecting reconfigurable intelligent surfaces (STAR-RISs) have been recently identified to improve the spectrum/energy efficiency and extend the communication range. However, their potential for enhanced concurrent indoor and outdoor localization has not yet been explored. In this paper, we study the fundamental limits, i.e., the Cramér Rao lower bounds (CRLBs) via Fisher information analyses, on the three-dimensional (3D) localization performance with a STAR-RIS at millimeter wave frequencies. The effect of the power splitting between refraction and reflection at the STAR-RIS as well as the power allocation between the two mobile stations (MSs) are investigated. By maximizing the principal angle between the two subspaces corresponding to the STAR-RIS reflection and refraction matrices, we are able to find the optimal solutions for these simultaneous operations. We verify that high-accuracy 3D localization can be achieved for both indoor and outdoor MSs when the system parameters are well optimized.
