End-to-End Delay Analysis of ATS Mechanism at Edge Nodes Via Network Calculus
Yuehong Gao, Jinfei Zhou, Jia He, Chenqiang Gao, Qingkun Tang, Jinghai Yu · 2023
As a new computing mode, edge computing moves computing, storage and network resources to edge nodes close to users, providing lower latency and better user experience for various applications. At the same time, the rapidly growing number of Internet users and traffic scale have also posed many challenges to edge nodes in the network. Among them, the traffic shaping and scheduling mechanism of edge nodes has become a key research issue. In this paper, an edge node network model using Asynchronous Traffic Shaping (ATS) mechanism is considered, and the end-to-end delay bound of the interested flow in this scenario is derived using Network Calculus theory. Based on the theoretical analysis method proposed in this paper, the upper bound of the number of users that can be connected to the network and the lower bound of the service resources provided by edge nodes are obtained. The findings of this study provide practical implications for the planning and resource allocation of edge nodes in scenarios like industrial Internet.