论文标题
无线链接的边缘计算信息分布的峰值年龄
Peak Age of Information Distribution for Edge Computing with Wireless Links
论文作者
论文摘要
信息时代（AOI）是几种物联网（IoT）应用程序的关键指标，在该应用程序中，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开发使监视过程更接近传感器，减少了通信延迟，但是需要考虑到边缘节点的处理时间。此外，就新鲜度而言，可靠的系统设计需要了解峰值AOI（PAOI）的完整分布，从中可以获得罕见但极具破坏性事件的可能性。在这项工作中，我们将此类系统的通信和计算延迟建模为两个首次发作（FCFS）队列，从分析得出M/M/M/1- M/D/1和M/M/M/M/M/1 -M/M/M/1串联的PAOI的完整分布，可以代表各种现实的场景。
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.
