Efficient Feedback Design for Unsourced Random Access with Integrated Sensing and Communication
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arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| Acceso en línea: | |
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| _version_ | 1866916810777952256 |
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| author | Ahmadi, Mohammad Javad Kazemi, Mohammad Schaefer, Rafael F. |
| author_facet | Ahmadi, Mohammad Javad Kazemi, Mohammad Schaefer, Rafael F. |
| contents | We consider an unsourced random access (URA) system enhanced with a feedback mechanism that serves both communication and sensing tasks. While traditional URA systems do not incorporate feedback, we propose a novel feedback signal design that announces the decoding status of users and simultaneously enables target sensing. To design this dual-purpose feedback, we introduce a modified projected gradient descent algorithm that minimizes a weighted combination of communication and sensing errors. Simulation results show that the proposed feedback design outperforms the state-of-the-art feedback design in the URA literature. Furthermore, we illustrate the trade-off between communication and sensing capabilities, offering valuable insight into balancing these two tasks. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_20262 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Efficient Feedback Design for Unsourced Random Access with Integrated Sensing and Communication Ahmadi, Mohammad Javad Kazemi, Mohammad Schaefer, Rafael F. Information Theory Signal Processing We consider an unsourced random access (URA) system enhanced with a feedback mechanism that serves both communication and sensing tasks. While traditional URA systems do not incorporate feedback, we propose a novel feedback signal design that announces the decoding status of users and simultaneously enables target sensing. To design this dual-purpose feedback, we introduce a modified projected gradient descent algorithm that minimizes a weighted combination of communication and sensing errors. Simulation results show that the proposed feedback design outperforms the state-of-the-art feedback design in the URA literature. Furthermore, we illustrate the trade-off between communication and sensing capabilities, offering valuable insight into balancing these two tasks. |
| title | Efficient Feedback Design for Unsourced Random Access with Integrated Sensing and Communication |
| topic | Information Theory Signal Processing |
| url | https://arxiv.org/abs/2506.20262 |