Over-the-Air multilevel test bed for dynamic V2X scenarios

联网和自动驾驶将在很大程度上依赖于无线连接。它的测试不仅需要评估标准的遵从性，而且对于在即将到来的个人流动性的新时代赢得信任也是必不可少的。该项目专注于空中(OTA)测试，其动机如下：1)通过在虚拟环境中进行测试，OTA测试实现了卓越的重复性和可控性。此外，它几乎没有伦理或司法性质的限制2)它包括用于感知(无线电)环境的天线辐射方向图的影响。3)它消除了访问天线端口的需要，因此也可以测试高度集成的收发器。现有的OTA测试方法仅针对蜂窝基础设施中的单链路通信。到目前为止，标准中还没有关于测试(短程)车载自组织网络功能的规定，其他地方也没有在这方面提出任何合适的建议。该项目研究了一种新的概念，即在交通场景中用软件模拟车载自组织网络的连通性，并将被测车辆暴露在OTA室内模拟的电磁场中。将特别关注具有协调操纵的联网和自动驾驶的典型动态事件。在这个项目中，基于动态射线追踪和新的随机建模策略，开发了适应这些类型事件的通道模型。在处理潜在解决方案的计算复杂性和延迟时，预计会出现具有挑战性的复杂性。皮德尔·加尔多在信道建模和信道仿真方面的专业知识与皮库尔纳在移动网络模拟和信道建模方面的专业知识相结合。该项目是4-CAD(一揽子计划)的一部分，以及题为“基于情景的汽车雷达虚拟验证和确认工具链”的提案，旨在实现汽车雷达领域的可比目标。这两个项目之间的链接可以在动态光线跟踪和指标上找到，测试设置本身的性能和测试下的功能都是如此。

Connected and automated driving will rely greatly on wireless connectivity. Its testing is not only required to assess the compliance to the standards yet it is also essential for earning trust in this upcoming new era of personal mobility. This project focuses on Over-the-Air (OTA) testing, as motivated in the following: 1) OTA testing, by enabling testing in virtual environments, allows for superior reproducibility and controllability. Moreover, it has close to no restrictions of ethical or juridical nature 2) It includes the influence of antenna radiation patterns used to sense the (radio) environment. 3) It removes the need to access the antenna ports, so that highly integrated transceivers may also be tested. Existing OTA testing approaches address solely single link communications in a cellular infrastructure. As of yet, no provision in the standards is made for testing functionality in (short-range) vehicular ad-hoc networks, nor has any suitable proposition in this direction been made elsewhere. This project investigates a new concept, in which the connectivity in vehicular ad-hoc networks in traffic scenarios is simulated in software and a vehicle under test is exposed to emulated EM fields in an OTA-chamber. Special attention will be paid to the dynamic events that are typical for connected and automated driving with coordinated manoeuvring. Channel models accommodating these type of events are developed in this project, on basis of both dynamic ray tracing and novel stochastic modelling strategies. A challenging complication is anticipated in dealing with computational complexity and latency of potential solutions. The expertise of PI Del Galdo on channel modelling and channel emulation is combined with the expertise of PI Kürner on mobile network simulation and channel modelling. This project is part of the the 4-CAD(( package together with the proposal entitled “Scenario-based tool chain for virtual verification and validation of automotive radar”, which aims at comparable goals in the field of automotive radar. Links between the two projects may be found on dynamic ray tracing and on metrics, both for the performance of test set-ups themselves and for the functionalities under test.