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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2026
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2604.15232 |
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| _version_ | 1866915940697899008 |
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| author | Zhang, Xiaochen Du, Haitao Cheng, Yanyu Lin, Yushen Teh, Kah Chan |
| author_facet | Zhang, Xiaochen Du, Haitao Cheng, Yanyu Lin, Yushen Teh, Kah Chan |
| contents | Pinching antenna (PA) systems have recently gained significant attention. While their physical-layer security (PLS) is being explored, most studies rely on idealized lossless models, ignoring practical waveguide attenuation. In this paper, we investigate the PLS performance of PA systems under a more realistic attenuation-incorporated waveguide model. Specifically, we investigate a PA system-based secure communication scenario consisting of a base station (BS), a legitimate user, and a passive eavesdropper. We derive expressions for closed-form upper and lower bounds on both the secrecy outage probability (SOP) and ergodic secrecy capacity (ESC). The results indicate that the PA system outperforms conventional fixed-antenna systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_15232 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Physical Layer Security Performance of Pinching-Antenna Systems With In-Waveguide Attenuation Zhang, Xiaochen Du, Haitao Cheng, Yanyu Lin, Yushen Teh, Kah Chan Signal Processing Pinching antenna (PA) systems have recently gained significant attention. While their physical-layer security (PLS) is being explored, most studies rely on idealized lossless models, ignoring practical waveguide attenuation. In this paper, we investigate the PLS performance of PA systems under a more realistic attenuation-incorporated waveguide model. Specifically, we investigate a PA system-based secure communication scenario consisting of a base station (BS), a legitimate user, and a passive eavesdropper. We derive expressions for closed-form upper and lower bounds on both the secrecy outage probability (SOP) and ergodic secrecy capacity (ESC). The results indicate that the PA system outperforms conventional fixed-antenna systems. |
| title | Physical Layer Security Performance of Pinching-Antenna Systems With In-Waveguide Attenuation |
| topic | Signal Processing |
| url | https://arxiv.org/abs/2604.15232 |