Latency characteristics analysis of express frames in TSN frame preemption

2023 5th International Conference on Electronic Engineering and Informatics (EEI) Pub Date : 2023-06-30 DOI:10.1109/EEI59236.2023.10212759

Yingli He, H. Ge, Xiaoyan Qi, Huisheng Gao, Huixuan Wang, Dongsheng Han

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Abstract

The frame preemption mechanism in Time-Sensitive Networking can effectively improve the transmission latency performance of express frames. However, in different network operating environments, express frame latency presents complex dynamic characteristics. In response to the complexity of express frame latency characteristics under frame preemption conditions, this article first analyzes the operation principle of the frame preemption mechanism and provides a calculation method for the latency of express frames. Then, considering the impact of link utilization and preemptable frame length on the average latency of express frames, we design a simulation analysis algorithm for the latency characteristics of express frames. Finally, using the proposed algorithm, we analyze the average latency, latency randomness, jitter, and latency boundary characteristics of express frames. The research results are valuable for engineering reference for the effective application of the TSN network frame preemption mechanism.

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TSN帧抢占中快速帧的延迟特性分析

时间敏感网络中的帧抢占机制可以有效地提高快速帧的传输延迟性能。然而，在不同的网络运行环境下，表示帧延迟呈现出复杂的动态特性。针对帧抢占条件下快递帧时延特征的复杂性，本文首先分析了帧抢占机制的工作原理，并给出了快递帧时延的计算方法。然后，考虑链路利用率和可抢占帧长度对快递帧平均时延的影响，设计了一种针对快递帧时延特性的仿真分析算法。最后，利用该算法分析了表达帧的平均延迟、延迟随机性、抖动和延迟边界特征。研究结果对TSN网络帧抢占机制的有效应用具有工程参考价值。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2023 5th International Conference on Electronic Engineering and Informatics (EEI)

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