Industrial control systems are foreseen to operate over hybrid wired/wireless networks. While the controller will be deployed in the wired network, sensors and actuators will be deployed in a wireless sensor network (WSN). To support QoS for control systems, an end-to-end delay bound and a target reliability must be provided in both wireless and wired domains. However, for industrial WSNs, guaranteeing reliability is a challenging task because of low-power communications and the harsh wireless environment. In this work, we present the first QoS framework for arbitrary hybrid wired/wireless networks, which guarantees that the delay bound and the target reliability of each application are provided. As part of this framework, we propose the first reliability-based scheduler for WSN able to achieve a target reliability in the presence of dynamic interference. Simulations of the proposed scheduler prove its suitability in different interference scenarios and motivate further work.

中文翻译：

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基于可靠性的混合/有线工业网络中的延迟保证调度

预计工业控制系统将在混合有线/无线网络上运行。虽然控制器将部署在有线网络中，但传感器和执行器将部署在无线传感器网络（WSN）中。为了支持控制系统的QoS，必须在无线和有线域中提供端到端的延迟范围和目标可靠性。但是，对于工业WSN，由于低功耗通信和恶劣的无线环境，确保可靠性是一项艰巨的任务。在这项工作中，我们提出了用于任意混合有线/无线网络的第一个QoS框架，该框架保证提供每个应用程序的延迟范围和目标可靠性。作为该框架的一部分，我们提出了第一个基于WSN的基于可靠性的调度程序，该调度程序能够在存在动态干扰的情况下实现目标可靠性。拟议的调度程序的仿真证明了其在不同干扰情况下的适用性，并推动了进一步的工作。