Routing and Scheduling of Time-Triggered Traffic in Time-Sensitive Networks

This article addresses the following research question: How to compute no-wait schedules and multipath routings for large-scale time-sensitive networks (TSNs)? TSN must guarantee low latency and fault tolerance. The former requirement is achieved by sending the messages according to a no-wait schedu...

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Veröffentlicht in:IEEE transactions on industrial informatics Jg. 16; H. 7; S. 4525 - 4534
Hauptverfasser: Atallah, Ayman A., Hamad, Ghaith Bany, Mohamed, Otmane Ait
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Piscataway IEEE 01.07.2020
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Schlagworte:
Bridges
Fault tolerance
Graph cut
integer linear programming (ILP)
Integer programming
Job shop scheduling
Linear programming
Logic gates
Messages
Networks
no-wait scheduling
Partitioning
Performance evaluation
Processor scheduling
Questions
Routing
Schedules
Scheduling
Streams
streams partitioning
Success
time-sensitive networks (TSNs)
ISSN:1551-3203, 1941-0050
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Zusammenfassung:This article addresses the following research question: How to compute no-wait schedules and multipath routings for large-scale time-sensitive networks (TSNs)? TSN must guarantee low latency and fault tolerance. The former requirement is achieved by sending the messages according to a no-wait schedule, whereas the latter is achieved by routing each message through multiple streams of disjoint paths. Computing such schedule and routing is an NP-hard problem. In this article, the aforementioned question is addressed by a three-fold solution: An iterated integer linear programming based scheduling (IIS) technique for scalability; the Degree of Conflict (DoC) between the IIS iterations is minimized by the DoC-aware streams partitioning (DASP) technique, which improves the success rate of the IIS; the fault-tolerance is guaranteed by a DoC-aware multipath routing technique, which integrates the DASP for further improvement in the success rate. Two hundred synthetic test cases are used for performance evaluation. The proposed method scales well, i.e., it handled networks of 21 bridges and 480 messages under 40 min timeout. The success rate of the highly utilized instances raised from 47% by random streams partitioning to 90% by the proposed method.
Bibliographie:ObjectType-Article-1
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ISSN:1551-3203
1941-0050
DOI:10.1109/TII.2019.2950887