Hierarchical Sparse Vector Transmission for Ultra Reliable and Low Latency Communications
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arXiv
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| Hauptverfasser: | , , , , , |
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| Format: | Preprint |
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2026
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| _version_ | 1866909995280367616 |
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| author | Zhang, Yanfeng Fan, Xi'an Zheng, Jinkai Jing, Xiaoye Yang, Weiwei Zhu, Xu |
| author_facet | Zhang, Yanfeng Fan, Xi'an Zheng, Jinkai Jing, Xiaoye Yang, Weiwei Zhu, Xu |
| contents | Sparse vector transmission (SVT) is a promising candidate technology for achieving ultra-reliable low-latency communication (URLLC). In this paper, a hierarchical SVT scheme is proposed for multi-user URLLC scenarios. The hierarchical SVT scheme partitions the transmitted bits into common and private parts. The common information is conveyed by the indices of non-zero sections in a sparse vector, while each user's private information is embedded into non-zero blocks with specific block lengths. At the receiver, the common bits are first recovered from the detected non-zero sections, followed by user-specific private bits decoding based on the corresponding non-zero block indices. Simulation results show the proposed scheme outperforms state-of-the-art SVT schemes in terms of block error rate. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_13204 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Hierarchical Sparse Vector Transmission for Ultra Reliable and Low Latency Communications Zhang, Yanfeng Fan, Xi'an Zheng, Jinkai Jing, Xiaoye Yang, Weiwei Zhu, Xu Signal Processing Information Theory Image and Video Processing Sparse vector transmission (SVT) is a promising candidate technology for achieving ultra-reliable low-latency communication (URLLC). In this paper, a hierarchical SVT scheme is proposed for multi-user URLLC scenarios. The hierarchical SVT scheme partitions the transmitted bits into common and private parts. The common information is conveyed by the indices of non-zero sections in a sparse vector, while each user's private information is embedded into non-zero blocks with specific block lengths. At the receiver, the common bits are first recovered from the detected non-zero sections, followed by user-specific private bits decoding based on the corresponding non-zero block indices. Simulation results show the proposed scheme outperforms state-of-the-art SVT schemes in terms of block error rate. |
| title | Hierarchical Sparse Vector Transmission for Ultra Reliable and Low Latency Communications |
| topic | Signal Processing Information Theory Image and Video Processing |
| url | https://arxiv.org/abs/2601.13204 |