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| Autores principales: | , , , , |
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| Formato: | Preprint |
| Publicado: |
2026
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| Materias: | |
| Acceso en línea: | https://arxiv.org/abs/2601.10259 |
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| _version_ | 1866909991922827264 |
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| author | Liu, Dikai Xiong, Yifeng Lops, Marco Liu, Fan Zhang, Jianhua |
| author_facet | Liu, Dikai Xiong, Yifeng Lops, Marco Liu, Fan Zhang, Jianhua |
| contents | In this paper, we analyze the periodic transmission masks for MASked Modulation (MASM) in half-duplex integrated sensing and communication (ISAC), and derive their closed-form expected range-Doppler response $\mathbb{E}\{r(k,l,ν)\}$. We show that range sidelobes ($k\neq l$) are Doppler-invariant, extending the range-sidelobe optimality to the 2-D setting. For the range mainlobe ($k=l$), periodic masking yields sparse Doppler sidelobes: Cyclic difference sets (CDSs) (in particular Singer CDSs) are minimax-optimal in a moderately dynamic regime, while in a highly dynamic regime the Doppler-sidelobe energy is a concave function of the mask autocorrelation, revealing an inevitable tradeoff with mainlobe fluctuation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_10259 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Transmission Mask Analysis for Range-Doppler Sensing in Half-Duplex ISAC Liu, Dikai Xiong, Yifeng Lops, Marco Liu, Fan Zhang, Jianhua Information Theory In this paper, we analyze the periodic transmission masks for MASked Modulation (MASM) in half-duplex integrated sensing and communication (ISAC), and derive their closed-form expected range-Doppler response $\mathbb{E}\{r(k,l,ν)\}$. We show that range sidelobes ($k\neq l$) are Doppler-invariant, extending the range-sidelobe optimality to the 2-D setting. For the range mainlobe ($k=l$), periodic masking yields sparse Doppler sidelobes: Cyclic difference sets (CDSs) (in particular Singer CDSs) are minimax-optimal in a moderately dynamic regime, while in a highly dynamic regime the Doppler-sidelobe energy is a concave function of the mask autocorrelation, revealing an inevitable tradeoff with mainlobe fluctuation. |
| title | Transmission Mask Analysis for Range-Doppler Sensing in Half-Duplex ISAC |
| topic | Information Theory |
| url | https://arxiv.org/abs/2601.10259 |