论文标题
用3D阵列对THZ通信系统的本地化覆盖范围分析
Localization Coverage Analysis of THz Communication Systems with a 3D Array
论文作者
论文摘要
本文考虑了估计配备三维（3D）阵列的用户的位置和方向的问题，该阵列从具有已知位置和方向的多个基站接收下链路远面的THZ信号。我们得出了针对本地化问题的cramér-rao，并定义了考虑系统的覆盖范围。我们比较了常规平面阵列的错误下限分布以及不同用户设备（UE）位置和方向处的3D数组配置。我们针对具有相等数量元素的数量配置获得的数值结果显示出对平面阵列配置的覆盖范围非常有限，尤其是在UE方向范围内。相反，3D阵列配置提供了整体上更高的覆盖范围，并且在某些UE位置和方向上的性能损失较小。
This paper considers the problem of estimating the position and orientation of a user equipped with a three-dimensional (3D) array receiving downlink far-field THz signals from multiple base stations with known positions and orientations. We derive the Cramér-Rao Bound for the localization problem and define the coverage of the considered system. We compare the error lower bound distributions of the conventional planar array and the 3D array configurations at different user equipment (UE) positions and orientations. Our numerical results obtained for array configurations with an equal number of elements show very limited coverage of the planar-array configuration, especially across the UE orientation range. Conversely, a 3D array configuration offers an overall higher coverage with minor performance loss in certain UE positions and orientations.
