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PreprintCC BY-NC-ND 4.0arXiv

Universal Decoding for Unequal Error Protection

  • Seyed AmirPouya Moeini
  • Albert Guillén i Fàbregas
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Abstract

We study universal unequal error protection of a single special message over discrete memoryless channels. We construct a sequence of codes with a decoding rule that does not depend on the channel transition law. We derive an achievable error exponent for the special message while ensuring reliable decoding of the ordinary messages. The resulting exponent strictly improves on the natural equal-error-protection random-coding baseline and remains positive as the rate approaches capacity. For symmetric channels, it converges to the optimal red-alert exponent at capacity.

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Cite

BibTeXRIS
BibTeX
@misc{moeini2026universal,
  title = {{Universal Decoding for Unequal Error Protection}},
  author = {Seyed AmirPouya Moeini and Albert Guillén i Fàbregas},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2610.15423},
  eprint = {2610.15423},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.15423},
  note = {CC BY-NC-ND 4.0},
}
RIS
TY  - UNPB
TI  - Universal Decoding for Unequal Error Protection
AU  - Seyed AmirPouya Moeini
AU  - Albert Guillén i Fàbregas
PY  - 2026
DA  - 2026/10/11
PB  - arXiv
DO  - 10.48550/arxiv.2610.15423
UR  - https://arxiv.org/abs/2610.15423
AB  - We study universal unequal error protection of a single special message over discrete memoryless channels. We construct a sequence of codes with a decoding rule that does not depend on the channel transition law. We derive an achievable error exponent for the special message while ensuring reliable decoding of the ordinary messages. The resulting exponent strictly improves on the natural equal-error-protection random-coding baseline and remains positive as the rate approaches capacity. For symmetric channels, it converges to the optimal red-alert exponent at capacity.
ER  -