An Intelligent Deterministic Scheduling Method for Ultra-Low Latency Communication in Edge Enabled Industrial Internet of Things
This addresses latency and bandwidth issues for real-time IIoT applications, but it appears incremental as it builds on existing Time Sensitive Network research.
The paper tackled the challenge of supporting ultra-low latency and efficient bandwidth utilization in edge-enabled Industrial Internet of Things by analyzing the combinability of multiple flows and proposing a deterministic scheduling method; results showed it can support deterministic ultra-low latency services and guarantee efficient bandwidth utilization, though no concrete numbers were provided.
Edge enabled Industrial Internet of Things (IIoT) platform is of great significance to accelerate the development of smart industry. However, with the dramatic increase in real-time IIoT applications, it is a great challenge to support fast response time, low latency, and efficient bandwidth utilization. To address this issue, Time Sensitive Network (TSN) is recently researched to realize low latency communication via deterministic scheduling. To the best of our knowledge, the combinability of multiple flows, which can significantly affect the scheduling performance, has never been systematically analyzed before. In this article, we first analyze the combinability problem. Then a non-collision theory based deterministic scheduling (NDS) method is proposed to achieve ultra-low latency communication for the time-sensitive flows. Moreover, to improve bandwidth utilization, a dynamic queue scheduling (DQS) method is presented for the best-effort flows. Experiment results demonstrate that NDS/DQS can well support deterministic ultra-low latency services and guarantee efficient bandwidth utilization.