Title
Enhancing Schedulability and Throughput of Time-Triggered Traffic in IEEE 802.1Qbv Time-Sensitive Networks
Abstract
Thanks to the standards being developed by IEEE Time-Sensitive Networking (TSN) Task Group, the classical IEEE 802.1 Ethernet architecture is now enhanced to accommodate real-time and safety-critical requirements emerging in various cyber-physical systems. The deterministic nature of the communication is achieved through the time-triggered traffic, which requires introducing strict scheduling constraints that may be an obstacle in finding a feasible schedule. In this article, we propose a simple hardware enhancement of a switch along with a relaxed scheduling constraint that increases schedulability and throughput of the time-triggered traffic but maintains the deterministic nature and timeliness guarantees in a TSN network. We give a formal proof to justify the claims and an algorithm benchmarking and experimental validation to demonstrate the gains. The results show that the number of flows that can be scheduled in the model with the relaxed constraint is on average by 75.1 % larger than in the traditional model.
Year
DOI
Venue
2020
10.1109/TCOMM.2020.3014105
IEEE Transactions on Communications
Keywords
DocType
Volume
Time-triggered scheduling,time-sensitive networking,isochronous traffic,switch enhancement,integer linear programming
Journal
68
Issue
ISSN
Citations 
11
0090-6778
4
PageRank 
References 
Authors
0.45
0
6
Name
Order
Citations
PageRank
Marek Vlk152.18
Zdenk Hanzálek2576.67
Katerina Brejchova340.45
Siyu Tang440.45
Sushmit Bhattacharjee540.45
Songwei Fu640.45