Pinching-Antenna System (PASS)-enabled Multicast Communications
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arXiv
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| Hauptverfasser: | , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866913703446708224 |
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| author | Mu, Xidong Zhu, Guangyu Liu, Yuanwei |
| author_facet | Mu, Xidong Zhu, Guangyu Liu, Yuanwei |
| contents | Pinching-antenna system (PASS) is a novel flexible-antenna technology, which employs long-spread waveguides to convey signals with negligible path loss and pinching antennas (PAs) with adjustable positions to radiate signals from the waveguide into the free space. Therefore, short-distance and strong line-of-sight transmission can be established. In this paper, a novel PASS-enabled multicast communication framework is proposed, where multiple PAs on a single waveguide radiate the broadcast signals to multiple users. The multicast performance maximization problem is formulated to optimize the positions of all PAs. To address this non-convex problem, a particle swarm optimization-based algorithm is developed. Numerical results show that PASS can significantly outperform the conventional multiple-antenna transmission. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2502_16624 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Pinching-Antenna System (PASS)-enabled Multicast Communications Mu, Xidong Zhu, Guangyu Liu, Yuanwei Information Theory Signal Processing Pinching-antenna system (PASS) is a novel flexible-antenna technology, which employs long-spread waveguides to convey signals with negligible path loss and pinching antennas (PAs) with adjustable positions to radiate signals from the waveguide into the free space. Therefore, short-distance and strong line-of-sight transmission can be established. In this paper, a novel PASS-enabled multicast communication framework is proposed, where multiple PAs on a single waveguide radiate the broadcast signals to multiple users. The multicast performance maximization problem is formulated to optimize the positions of all PAs. To address this non-convex problem, a particle swarm optimization-based algorithm is developed. Numerical results show that PASS can significantly outperform the conventional multiple-antenna transmission. |
| title | Pinching-Antenna System (PASS)-enabled Multicast Communications |
| topic | Information Theory Signal Processing |
| url | https://arxiv.org/abs/2502.16624 |