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Importance-aware Sampling of a Two-State Markov Source for Real-time Tracking
Linköping University, Department of Computer and Information Science, Database and information techniques. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-0111-0717
EURECOM, France.
Linköping University, Department of Computer and Information Science, Database and information techniques. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0003-4416-7702
2023 (English)In: FIFTY-SEVENTH ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS & COMPUTERS, IEEECONF, IEEE , 2023, p. 101-105Conference paper, Published paper (Refereed)
Abstract [en]

This work considers the problem of real-time remote tracking and reconstruction of a two-state Markov process for actuation. The transmitter sends samples from an observed information source to a remote monitor over an unreliable wireless channel. We propose a state-aware randomized stationary sampling and transmission policy, which considers the importance of different states and their impact on the communication objective. We then analyze the performance of the proposed policy and compare it with existing goal-oriented joint sampling and transmission policies using relevant metrics. Specifically, we assess the real-time reconstruction error, the cost of actuation error, and the consecutive error metrics. Furthermore, a constrained optimization problem is formulated and solved so as to minimize the average cost of actuation error by determining optimal sampling probabilities. Our results show that the optimal state-aware randomized stationary policy outperforms other policies in scenarios with constrained sampling for fast-evolving sources. In addition, when the source changes slowly, although the semantics-aware policy tends to be more effective, the optimal state-aware randomized stationary policy excels under certain conditions.

Place, publisher, year, edition, pages
IEEE , 2023. p. 101-105
Series
Conference Record of the Asilomar Conference on Signals Systems and Computers, ISSN 1058-6393, E-ISSN 2576-2303
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:liu:diva-208698DOI: 10.1109/IEEECONF59524.2023.10477015ISI: 001207755100018ISBN: 9798350325744 (electronic)ISBN: 9798350325751 (print)OAI: oai:DiVA.org:liu-208698DiVA, id: diva2:1907444
Conference
57th Asilomar Conference on Signals, Systems and Computers, ELECTR NETWORK, oct 29-nov 01, 2023
Note

Funding Agencies|Swedish Research Council (VR); ELLIIT; European Union (ETHER) [101096526]; European Research Council (ERC) under the European Union [101003431]

Available from: 2024-10-22 Created: 2024-10-22 Last updated: 2024-10-22

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CiteExportLink to record
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Cite
Citation style
  • apa
  • ieee
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  • vancouver
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More languages
Output format
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