Joint Segment Activation and Antenna Placement for Uplink SWAN Systems
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arXiv
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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2026
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| _version_ | 1866917491522928640 |
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| author | Gu, Songnan Cheng, Zhenqiao Jiang, Hao Ouyang, Chongjun Liu, Yuanwei Nallanathan, Arumugam |
| author_facet | Gu, Songnan Cheng, Zhenqiao Jiang, Hao Ouyang, Chongjun Liu, Yuanwei Nallanathan, Arumugam |
| contents | This article analyzes the achievable sum-rate of multiuser uplink segmented waveguide-enabled pinching-antenna systems (SWANs). To unveil system-design insights, an upper bound on the achievable sum-rate is derived, based on which the existence of an optimal segment activation level is theoretically established. Motivated by this result, hybrid segment selection and aggregation (HSS/A) schemes are proposed to jointly optimize segment activation and pinching-antenna (PA) placement. Correspondingly, low-complexity greedy algorithms are developed for the considered optimization problem. Numerical results validate the theoretical analysis and demonstrate that the proposed HSS/A schemes outperform conventional full-segment aggregation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_13580 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Joint Segment Activation and Antenna Placement for Uplink SWAN Systems Gu, Songnan Cheng, Zhenqiao Jiang, Hao Ouyang, Chongjun Liu, Yuanwei Nallanathan, Arumugam Signal Processing This article analyzes the achievable sum-rate of multiuser uplink segmented waveguide-enabled pinching-antenna systems (SWANs). To unveil system-design insights, an upper bound on the achievable sum-rate is derived, based on which the existence of an optimal segment activation level is theoretically established. Motivated by this result, hybrid segment selection and aggregation (HSS/A) schemes are proposed to jointly optimize segment activation and pinching-antenna (PA) placement. Correspondingly, low-complexity greedy algorithms are developed for the considered optimization problem. Numerical results validate the theoretical analysis and demonstrate that the proposed HSS/A schemes outperform conventional full-segment aggregation. |
| title | Joint Segment Activation and Antenna Placement for Uplink SWAN Systems |
| topic | Signal Processing |
| url | https://arxiv.org/abs/2605.13580 |