论文标题
Recorp:工业无线网络的面向接收器的政策
Recorp: Receiver-Oriented Policies for Industrial Wireless Networks
论文作者
论文摘要
未来的工业互联网(IIOT)系统将需要无线解决方案将传感器,执行器和控制器连接起来,这是高数据速率反馈控制循环的一部分,而不是实时流。此类网络中的一个主要挑战是为链接质量变化提供可预测的性能和适应性。我们通过制定面向接收者的政策(回复)来应对这一挑战,该策略通过结合离线策略综合和运行时适应来利用IIOT工作负载的稳定性。与在插槽中提供单个流的时间表相比,Recorp策略通过分配协调器和可以在同一插槽中提供的流量列表来共享多个流中的插槽。在运行时,协调员将根据已经收到的协调员的流动来执行其中一个流。 Reporp的一个显着特征是它提供可预测的性能:当链接质量超过用户指定的阈值时,策略符合端到端的可靠性和流量的截止日期。实验表明,在IIT工作量中,政策的实时容量中位数增加了50%至142%,而最差的延迟期限的中位数降低了27%至70%,当时时间表和政策被配置为满足最终可靠性99%。
Future Industrial Internet-of-Things (IIoT) systems will require wireless solutions to connect sensors, actuators, and controllers as part of high data rate feedback-control loops over real-time flows. A key challenge in such networks is to provide predictable performance and adaptability in response to link quality variations. We address this challenge by developing RECeiver ORiented Policies (Recorp), which leverages the stability of IIoT workloads by combining offline policy synthesis and run-time adaptation. Compared to schedules that service a single flow in a slot, Recorp policies share slots among multiple flows by assigning a coordinator and a list of flows that may be serviced in the same slot. At run-time, the coordinator will execute one of the flows depending on which flows the coordinator has already received. A salient feature of Recorp is that it provides predictable performance: a policy meets the end-to-end reliability and deadline of flows when the link quality exceeds a user-specified threshold. Experiments show that across IIoT workloads, policies provided a median increase of 50% to 142% in real-time capacity and a median decrease of 27% to 70% in worst-case latency when schedules and policies are configured to meet an end-to-end reliability of 99%.