论文标题
Quadriga通道模型的5G-NR卫星扩展
A 5G-NR Satellite Extension for the QuaDRiGa Channel Model
论文作者
论文摘要
低地球轨道（LEO）卫星网络将成为全球电信基础设施不可或缺的一部分。对这些网络的无线电链路进行建模及其与现有陆地系统的互动对于这些网络的设计，计划和缩放至关重要。第三代合作伙伴项目（3GPP）通过为这种无线电通道模型提供指南来解决这一问题。但是，提出的模型缺乏卫星轨道模型，并且在提供的参数中存在一些不一致之处。本文解决了这一点。我们提供了一个非对位的 - 卫星模型，可以集成到基于几何的随机通道模型（GSCM），例如Quadriga。然后，我们使用此模型从简化的环境模型获得GSCM参数，并将结果与3GPP参数集进行比较。这解决了不一致之处，但是我们简化的方法并没有考虑许多传播效应。因此，未来的工作必须依靠测量或准确的射线追踪模型来获得参数。
Low Earth orbit (LEO) satellite networks will become an integral part of the global telecommunication infrastructure. Modeling the radio-links of these networks and their interaction with existing terrestrial systems is crucial for the design, planning and scaling of these networks. The 3rd generation partnership project (3GPP) addressed this by providing guideline for such a radio-channel model. However, the proposed model lacks a satellite orbit model and has some inconsistencies in the provided parameters. This is addressed in this paper. We provide a non-geostationary-satellite model that can be integrated into geometry-based stochastic channel models (GSCMs) such as QuaDRiGa. We then use this model to obtain the GSCM parameters from a simplified environment model and compare the results to the 3GPP parameter-set. This solves the inconsistencies, but our simplified approach does not consider many propagation effects. Future work must therefore rely on measurements or accurate Ray-tracing models to obtain the parameters.
