Quality of Service Study in Synchronized Time-Triggered Aerial Networks

Quality of Service Study in Synchronized Time-Triggered Aerial Networks
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DOI：
10.1109/dasc50938.2020.9256480
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发表时间：
2020-10
期刊：
2020 AIAA/IEEE 39th Digital Avionics Systems Conference (DASC)
影响因子：
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通讯作者：
Nahman Tariq;I. Petrunin;Saba Al-Rubaye;A. Tsourdos;Wolfram Zischka
Nahman Tariq;I. Petrunin;Saba Al-Rubaye;A. Tsourdos;Wolfram Zischka
中科院分区：
其他
文献类型：
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作者：
Nahman Tariq;I. Petrunin;Saba Al-Rubaye;A. Tsourdos;Wolfram Zischka

文献摘要

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无人驾驶飞行器（UAV）在军事和民用应用中显示出巨大的潜力，例如在交付服务、搜索和救援以及监视方面。目前，无人机可以在飞行中执行多种任务。无人机的实时系统具有有限的时间触发同步能力，这对其平台施加了同步限制。此外，无人机和地面站之间没有时间触发的同步。无人机和地面站之间可靠通信链路的要求之一是需要在时间触发网络中使用全球导航卫星系统（GNSS）进行同步。然而，无人机与地面站之间的信息交换缺乏时间触发能力。在这种情况下，GNSS时间可以用作外部来源，以允许UAV执行连接到地面站的任务，并带有时间戳消息。在本文中，我们调查的GNSS作为外部时间源的时间触发网络，以实现高质量的服务（QoS）的地面站和无人机之间的通信链路的能力。仿真分析进行评估的整体系统性能，这给出了一个时间触发的有线和无线网络的性能更好的理解。
Unmanned aerial vehicles (UAVs) have shown tremendous potential in both military and civilian applications, for example, in delivery services, search and rescue, and surveillance. Currently, UAVs can perform several tasks while in flight. UAVs have real-time systems with limited capability for time-triggered synchronization, which impose synchronization limitations for their platforms. Additionally, there is no time-triggered synchronization between the UAVs and the ground station. One of the requirements for a reliable communication links between a UAV and a ground station is the need for synchronization using Global Navigation Satellite System (GNSS) in a time-triggered network. However, the information exchange between UAV and ground station lacks the time-triggered abilities. In this context, GNSS time can be used as an external source to allow UAV performing tasks connected to the ground station with time-stamped messages. In this paper, we investigate the capability of GNSS as an external time source for the time-triggered network to achieve high quality of service (QoS) of a communication link between the ground station and UAV. Simulations analysis was conducted to evaluate the overall system performance, which gives a better understanding of performance of a time-triggered wired and wireless network.