论文标题
低能临时网络的沟通继电器延迟的实验分析
Experimental Analysis of Communication Relaying Delay in Low-Energy Ad-hoc Networks
论文作者
论文摘要
近年来，越来越多的应用程序将临时网络用于本地M2M通信，但是在某些情况下，例如使用WSN时，由数据包继电器引起的软件处理延迟可能不可忽略。在本文中，我们使用Raspberry Pi Zero W进行了计划并进行了延迟测量实验。结果表明，在低能量的Ad-Hoc网络中，处理应用程序的处理延迟总是太大而无法忽略。它至少比内核路由大十倍，对应于传输延迟的30％。此外，如果任务是CPU密集型的，例如数据包加密，则处理延迟可能大于传输延迟，并且其行为由简单的线性模型表示。我们的发现表明，在临时网络中实现QoS的关键因素是一个适当的节点到节点负载平衡，它考虑了CPU性能和通过每个节点的流量量。
In recent years, more and more applications use ad-hoc networks for local M2M communications, but in some cases such as when using WSNs, the software processing delay induced by packets relaying may not be negligible. In this paper, we planned and carried out a delay measurement experiment using Raspberry Pi Zero W. The results demonstrated that, in low-energy ad-hoc networks, processing delay of the application is always too large to ignore; it is at least ten times greater than the kernel routing and corresponds to 30% of the transmission delay. Furthermore, if the task is CPU-intensive, such as packet encryption, the processing delay can be greater than the transmission delay and its behavior is represented by a simple linear model. Our findings indicate that the key factor for achieving QoS in ad-hoc networks is an appropriate node-to-node load balancing that takes into account the CPU performance and the amount of traffic passing through each node.
