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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| Sujets: | |
| Accès en ligne: | https://arxiv.org/abs/2502.08996 |
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| _version_ | 1866916756082130944 |
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| author | Xiong, Yifeng Mu, Junsheng Li, Shuangyang Lops, Marco Zhang, Jianhua |
| author_facet | Xiong, Yifeng Mu, Junsheng Li, Shuangyang Lops, Marco Zhang, Jianhua |
| contents | Integrated sensing and communication (ISAC) enables numerous innovative wireless applications. Communication-centric design is a practical choice for the construction of the sixth generation (6G) ISAC networks. Continuous-wave-based ISAC systems, with orthogonal frequency-division multiplexing (OFDM) being a representative example, suffer from the self-interference (SI) problem, and hence are less suitable for long-range sensing. On the other hand, pulse-based half-duplex ISAC systems are free of SI, but are also less favourable for high-throughput communication scenarios.
In this treatise, we propose MASked Modulation (MASM), a half-duplex ISAC waveform design scheme, which minimises a range blindness metric, termed as "mainlobe fluctuation", given a duty cycle (proportional to communication throughput) constraint. In particular, MASM is capable of supporting high-throughput communication ($\sim$50% duty cycle) under mild mainlobe fluctuation. Moreover, MASM can be flexibly adapted to frame-level waveform designs by operating on the slow-time scale. In terms of optimal transmit mask design, a set of masks is shown to be ideal in the sense of sidelobe level and mainlobe fluctuation intensity. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_08996 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Masked Modulation: High-Throughput Half-Duplex ISAC Transmission Waveform Design Xiong, Yifeng Mu, Junsheng Li, Shuangyang Lops, Marco Zhang, Jianhua Information Theory Integrated sensing and communication (ISAC) enables numerous innovative wireless applications. Communication-centric design is a practical choice for the construction of the sixth generation (6G) ISAC networks. Continuous-wave-based ISAC systems, with orthogonal frequency-division multiplexing (OFDM) being a representative example, suffer from the self-interference (SI) problem, and hence are less suitable for long-range sensing. On the other hand, pulse-based half-duplex ISAC systems are free of SI, but are also less favourable for high-throughput communication scenarios. In this treatise, we propose MASked Modulation (MASM), a half-duplex ISAC waveform design scheme, which minimises a range blindness metric, termed as "mainlobe fluctuation", given a duty cycle (proportional to communication throughput) constraint. In particular, MASM is capable of supporting high-throughput communication ($\sim$50% duty cycle) under mild mainlobe fluctuation. Moreover, MASM can be flexibly adapted to frame-level waveform designs by operating on the slow-time scale. In terms of optimal transmit mask design, a set of masks is shown to be ideal in the sense of sidelobe level and mainlobe fluctuation intensity. |
| title | Masked Modulation: High-Throughput Half-Duplex ISAC Transmission Waveform Design |
| topic | Information Theory |
| url | https://arxiv.org/abs/2502.08996 |