Accommodation of the Service Offered by the Network for Networked Control Systems
Idriss Diouri (CRAN), Jean-Philippe Georges (CRAN), Eric Rondeau, (CRAN)

TL;DR
This paper proposes an optimization method for network scheduling in Networked Control Systems using IEEE 802.1p classification and Weighted Round Robin to balance bandwidth and control quality.
Contribution
It introduces a tuning approach for Ethernet network scheduling that considers control quality constraints in NCSs, enhancing bandwidth allocation.
Findings
Optimized scheduling improves control stability under network delays
Bandwidth allocation is maximized while maintaining control constraints
Weighted Round Robin effectively manages service differentiation
Abstract
Networked Controlled Systems (NCSs) are more and more used in industrial applications. They are strongly connected to real-time constraints because important delays induced by the network can lead to an unstable process control. Usually, the network used in NCSs is shared with many others applications requiring different Quality of Service. The objective of this paper is to optimize the tuning of the network scheduling mechanisms in taking into account the level of Quality of Control. The goal is to maximize the bandwidth allocation for unconstrained frames in guarantying that the control constraints are respected. In this paper, we focus on switched Ethernet network implementing the Classification of Service (IEEE 802.1p) based on a Weighted Round Robin policy.
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Taxonomy
TopicsNetwork Time Synchronization Technologies · Network Traffic and Congestion Control · Petri Nets in System Modeling
