论文标题
分布式积压的d2D通信用于异质IIT应用
Distributed Backlog-Aware D2D Communication for Heterogeneous IIoT Applications
论文作者
论文摘要
延迟和信息年龄（AOI）是在工业互联网（IIOT）中新兴的时间敏感应用（IIOT）的两个关键性能指标。为了实现最佳性能，研究非平凡任务中这两个参数之间的固有相互作用。在这项工作中，我们考虑了一个基于设备对设备（D2D）的异质IIOT网络，该网络支持两种类型的交通流，即面向AOI-II-II-IIT网络。首先，我们引入了一个分布式积压的随机访问协议，该协议允许AOI-I-I-Indiendiended节点根据延迟导向的节点的队列占用来机会访问通道。然后，我们开发一个分析框架来评估平均延迟和平均AOI，并提出优化问题，以最大程度地减少给定延迟约束的AOI。最后，我们提供数值结果，以证明不同网络参数对平均延迟和平均AOI的影响。我们还提供了最佳参数的数值解决方案，这些解决方案将AOI最小化受延迟约束。
Delay and Age-of-Information (AoI) are two crucial performance metrics for emerging time-sensitive applications in Industrial Internet of Things (IIoT). In order to achieve optimal performance, studying the inherent interplay between these two parameters in non-trivial task. In this work, we consider a Device-to-Device (D2D)-based heterogeneous IIoT network that supports two types of traffic flows, namely AoI-orientated. First, we introduce a distributed backlog-aware random access protocol that allows the AoI-orientated nodes to opportunistically access the channel based on the queue occupancy of the delay-oriented node. Then, we develop an analytical framework to evaluate the average delay and the average AoI, and formulate an optimization problem to minimize the AoI under a given delay constraint. Finally, we provide numerical results to demonstrate the impact of different network parameters on the performance in terms of the average delay and the average AoI. We also give the numerical solutions of the optimal parameters that minimize the AoI subject to a delay constraint.
