In the context of communication networks, digital twin technology provides a means to replicate the radio frequency (RF) propagation environment as well as the system behaviour, allowing for a way to optimize the performance of a deployed system based on simulations. One of the key challenges in the application of Digital Twin technology to mmWave systems is the prevalent channel simulators' stringent requirements on the accuracy of the 3D Digital Twin, reducing the feasibility of the technology in real applications. We propose a practical Digital Twin creation pipeline and a channel simulator, that relies only on a single mounted camera and position information. We demonstrate the performance benefits compared to methods that do not explicitly model the 3D environment, on downstream sub-tasks in beam acquisition, using the real-world dataset of the DeepSense6G challenge

翻译：在通信网络背景下，数字孪生技术能够复现射频传播环境及系统行为，从而通过仿真优化已部署系统的性能。将数字孪生技术应用于毫米波系统的主要挑战之一，在于现有信道模拟器对三维数字孪生精度要求严苛，降低了该技术在真实应用中的可行性。本文提出一种实用的数字孪生生成流程及信道模拟器，仅依赖单目摄像头和位置信息即可实现。通过DeepSense6G挑战赛的真实数据集，在波束获取的下游子任务中，我们验证了该方法相较于未显式建模三维环境的方法具有性能优势。