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arXiv · 2605.13580

Joint Segment Activation and Antenna Placement for Uplink SWAN Systems

Songnan Gu·Zhenqiao Cheng·Hao Jiang·Chongjun Ouyang·Yuanwei Liu·Arumugam Nallanathan
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Abstract

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.

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Songnan Gu, Zhenqiao Cheng, Hao Jiang, Chongjun Ouyang, Yuanwei Liu, Arumugam Nallanathan. 2026-05-13. Joint Segment Activation and Antenna Placement for Uplink SWAN Systems. https://arxiv.org/abs/2605.13580

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