Distributed Channel Access for Control Over Unknown Memoryless Communication Channels
Loading...
Access rights
openAccess
publishedVersion
URL
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
Date
2022-12-01
Major/Subject
Mcode
Degree programme
Language
en
Pages
15
Series
IEEE Transactions on Automatic Control, Volume 67, issue 12, pp. 6445-6459
Abstract
We consider the distributed channel access problem for a system consisting of multiple control subsystems that close their loop over a shared wireless network. We propose a distributed method for providing deterministic channel access without requiring explicit information exchange between the subsystems. This is achieved by utilizing timers for prioritizing channel access with respect to a local cost which we derive by transforming the control objective cost to a form that allows its local computation. This property is then exploited for developing our distributed deterministic channel access scheme. A framework to verify the stability of the system under the resulting scheme is then proposed. Next, we consider a practical scenario in which the channel statistics are unknown. We propose learning algorithms for learning the parameters of imperfect communication links for estimating the channel quality and, hence, define the local cost as a function of this estimation and control performance. We establish that our learning approach results in collision-free channel access. The behavior of the overall system is exemplified via a proof-of-concept illustrative example, and the efficacy of this mechanism is evaluated for large-scale networks via simulations.Description
Keywords
Wireless communication, Costs, Wireless sensor networks, Stability criteria, Optimal scheduling, Process control, Resource management
Other note
Citation
Farjam, T, Wymeersch, H & Charalambous, T 2022, ' Distributed Channel Access for Control Over Unknown Memoryless Communication Channels ', IEEE Transactions on Automatic Control, vol. 67, no. 12, 9623475, pp. 6445-6459 . https://doi.org/10.1109/TAC.2021.3129737