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Causal Vector-Valued Witsenhausen Counterexamples with Feedback
KTH, School of Electrical Engineering and Computer Science (EECS), Intelligent systems, Information Science and Engineering.
Univ. Rennes, CNRS, Inria IRISA UMR 6074, Rennes, France, F-35000.
KTH, School of Electrical Engineering and Computer Science (EECS), Intelligent systems, Information Science and Engineering.ORCID iD: 0000-0002-0036-9049
2024 (English)In: 2024 IEEE Information Theory Workshop, ITW 2024, Institute of Electrical and Electronics Engineers (IEEE) , 2024, p. 687-692Conference paper, Published paper (Refereed)
Abstract [en]

We study the continuous vector-valued Witsen-hausen counterexample with Gaussian states through the lens of empirical coordination coding. We characterize the region of achievable pairs of costs in three scenarios: (i) causal encoding and causal decoding, (ii) causal encoding and causal decoding with channel feedback, and (iii) causal encoding and noncausal decoding with channel feedback. In these vector-valued versions of the problem, the optimal coding schemes must rely on a time-sharing strategy, since the region of achievable pairs of costs might not be convex in the scalar version of the problem. We examine the role of the channel feedback when the encoder is causal and the decoder is either causal or non-causal, and we show that feedback improves the performance, only when the decoder is non-causal.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE) , 2024. p. 687-692
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-359867DOI: 10.1109/ITW61385.2024.10806960ISI: 001433908800116Scopus ID: 2-s2.0-85216513296OAI: oai:DiVA.org:kth-359867DiVA, id: diva2:1937176
Conference
2024 IEEE Information Theory Workshop, ITW 2024, Shenzhen, China, Nov 24 2024 - Nov 28 2024
Note

Part of ISBN 9798350348934]

QC 20250213

Available from: 2025-02-12 Created: 2025-02-12 Last updated: 2025-05-05Bibliographically approved

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Zhao, MengyuanOechtering, Tobias J.

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CiteExportLink to record
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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
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Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf