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arXiv 2004.05088cs.NI
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使用无线链路的边缘计算的信息分发高峰期

Peak Age of Information Distribution for Edge Computing with Wireless Links

Federico Chiariotti, Olga Vikhrova, Beatriz Soret, Petar Popovski

摘要:

信息时代(AoI)是几个物联网(IoT)应用程序的关键指标,其中传感器通过发送需要尽可能新鲜的更新来跟踪环境。边缘计算解决方案的发展使监测过程更接近传感器,减少了通信延迟,但需要考虑边缘节点的处理时间。此外,在新鲜度方面的可靠系统设计需要了解峰值AoI(PAoI)的全部分布,由此可以获得罕见但极具破坏性的事件的发生概率。在这项工作中,我们建模的通信和计算延迟这样的系统作为两个先来先服务(FCFS)队列串联,解析推导出完整的分布的PAoI为M/M/1 - M/D/1和M/M/1 - M/M/1串联,它可以代表各种各样的现实情况。

英文摘要:

Age of Information (AoI) is a critical metric for several Internet of Things (IoT) applications, where sensors keep track of the environment by sending updates that need to be as fresh as possible. The development of edge computing solutions has moved the monitoring process closer to the sensor, reducing the communication delays, but the processing time of the edge node needs to be taken into account. Furthermore, a reliable system design in terms of freshness requires the knowledge of the full distribution of the Peak AoI (PAoI), from which the probability of occurrence of rare, but extremely damaging events can be obtained. In this work, we model the communication and computation delay of such a system as two First Come First Serve (FCFS) queues in tandem, analytically deriving the full distribution of the PAoI for the M/M/1 - M/D/1 and the M/M/1 - M/M/1 tandems, which can represent a wide variety of realistic scenarios.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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