Enhancements in Score-based Channel Estimation for Real-Time Wireless Systems
Fuente:
arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866909779216039936 |
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| author | Strasser, Florian Bäro, Marion Utschick, Wolfgang |
| author_facet | Strasser, Florian Bäro, Marion Utschick, Wolfgang |
| contents | We propose enhancements to score-based generative modeling techniques for low-latency pilot-based channel estimation in a point-to-point single-carrier multiple-input multiple-output (MIMO) wireless system. Building on recent advances in score-based models, we investigate a specific noise schedule design and sampling acceleration by step-skipping to reduce the number of denoising steps during inference. We additionally propose a single-step signal-to-noise ratio informed denoiser as an extreme case of the step-skipping approach. Our methods achieve significant latency reductions without performance degradation, as demonstrated on a synthetic channel dataset representing an urban macrocell MIMO communications scenario. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_07839 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Enhancements in Score-based Channel Estimation for Real-Time Wireless Systems Strasser, Florian Bäro, Marion Utschick, Wolfgang Signal Processing We propose enhancements to score-based generative modeling techniques for low-latency pilot-based channel estimation in a point-to-point single-carrier multiple-input multiple-output (MIMO) wireless system. Building on recent advances in score-based models, we investigate a specific noise schedule design and sampling acceleration by step-skipping to reduce the number of denoising steps during inference. We additionally propose a single-step signal-to-noise ratio informed denoiser as an extreme case of the step-skipping approach. Our methods achieve significant latency reductions without performance degradation, as demonstrated on a synthetic channel dataset representing an urban macrocell MIMO communications scenario. |
| title | Enhancements in Score-based Channel Estimation for Real-Time Wireless Systems |
| topic | Signal Processing |
| url | https://arxiv.org/abs/2509.07839 |