Summary
2021
Session Number:TS6
Session:
Number:TS6-3
Time-Aware Stream Reservation for Distributed TSN
Ching-Chih Chuang, Yuan-Yao Shih, Jian-Cheng Chen, Ai-Chun Pang,
pp.190-195
Publication Date:2021/9/8
Online ISSN:2188-5079
Summary:
Recently, a novel network architecture called Time- Sensitive Networking (TSN), which supports high bandwidth and deterministic communication, emerges to satisfy the requirements of safety-critical real-time applications for industrial automation. TSN can operate in centralized and distributed models, and the distributed model is more suitable for the safety-critical applications that require high network availability and reliability. However, the existing approach for the TSN’s fully distributed model makes a pessimistic latency bound estimation due to the problems of lower priority streams and dependency. The pes- simistic estimation will result in a decrease in the schedulability of TSN streams. This paper identifies and evaluates the impact of the two problems via a case study and then proposes a TDMA- based stream reservation approach to alleviate the two problems. The simulation results validate the proposed approach in terms of the number of accepted streams and computation time.