Unveiling Covert Semantics: Joint Source-Channel Coding Under a Covertness Constraint
Fuente:
arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866914841538592768 |
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| author | Bounhar, Abdelaziz Sarkiss, Mireille Wigger, Michèle |
| author_facet | Bounhar, Abdelaziz Sarkiss, Mireille Wigger, Michèle |
| contents | The fundamental limit of Semantic Communications (joint source-channel coding) is established when the transmission needs to be kept covert from an external warden. We derive information-theoretic achievability and matching converse results and we show that source and channel coding separation holds for this setup. Furthermore, we show through an experimental setup that one can train a deep neural network to achieve covert semantic communication for the classification task. Our numerical experiments confirm our theoretical findings, which indicate that for reliable joint source-channel coding the number of transmitted source symbols can only scale as the square-root of the number of channel uses. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_13466 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Unveiling Covert Semantics: Joint Source-Channel Coding Under a Covertness Constraint Bounhar, Abdelaziz Sarkiss, Mireille Wigger, Michèle Information Theory The fundamental limit of Semantic Communications (joint source-channel coding) is established when the transmission needs to be kept covert from an external warden. We derive information-theoretic achievability and matching converse results and we show that source and channel coding separation holds for this setup. Furthermore, we show through an experimental setup that one can train a deep neural network to achieve covert semantic communication for the classification task. Our numerical experiments confirm our theoretical findings, which indicate that for reliable joint source-channel coding the number of transmitted source symbols can only scale as the square-root of the number of channel uses. |
| title | Unveiling Covert Semantics: Joint Source-Channel Coding Under a Covertness Constraint |
| topic | Information Theory |
| url | https://arxiv.org/abs/2406.13466 |