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Recently, a novel flexible-antenna technology, called pinching antennas, has attracted growing academic interest. By inserting discrete dielectric materials, pinching antennas can be activated at arbitrary points along waveguides, allowing…

Information Theory · Computer Science 2025-06-02 Weihao Mao , Yang Lu , Yanqing Xu , Bo Ai , Octavia A. Dobre , Dusit Niyato

Pinching-antenna systems (PASS) represent an innovative advancement in flexible-antenna technologies, aimed at significantly improving wireless communications by ensuring reliable line-of-sight connections and dynamic antenna array…

Signal Processing · Electrical Eng. & Systems 2025-11-27 Jingjing Zhao , Haowen Song , Xidong Mu , Kaiquan Cai , Yanbo Zhu , Yuanwei Liu

Pinching antenna (PA) is a flexible antenna composed of a waveguide and multiple dielectric particles, which is capable of reconfiguring wireless channels intelligently in line-of-sight links. By leveraging the unique features of PAs, we…

Information Theory · Computer Science 2025-02-19 Tianwei Hou , Yuanwei Liu , Arumugam Nallanathan

Flexible-antenna systems have recently received significant research interest due to their capability to reconfigure wireless channels intelligently. This paper focuses on a new type of flexible-antenna technology, termed pinching antennas,…

Information Theory · Computer Science 2024-12-04 Zhiguo Ding , Robert Schober , H. Vincent Poor

Pinching-antenna systems (PASS) represent a promising customizable wireless access mechanism in high-frequency bands, enabled by dielectric waveguides and movable dielectric particles, called pinching antennas (PAs). In this work, we study…

Information Theory · Computer Science 2026-04-20 Muhammad Fainan Hanif , Yuanwei Liu

The pinching-antenna systems (PASS) enable blockage mitigation in urban micro (UMi) networks through flexible antenna placement. However, the joint optimization of antenna positions and beamforming precoding is inherently nonconvex and…

Signal Processing · Electrical Eng. & Systems 2026-03-03 Qiushi Zhao , Zihan Feng , Ximing Xie , Hao Qin , Yuanwei Liu , Xingqi Zhang

This paper considers a power-splitting (PS)-based simultaneous wireless information and power transfer (SWIPT) system employing a reconfigurable pinching antenna (PA) under probabilistic line-of-sight (LoS) blockage. We formulate a joint…

Signal Processing · Electrical Eng. & Systems 2025-09-04 Ruihong Jiang , Ruichen Zhang , Yanqing Xu , Huimin Hu , Yang Lu , Dusit Niyato

Pinching-antenna systems have recently emerged as a promising solution for enhancing coverage in high-frequency wireless communications by guiding signals through dielectric waveguides and radiating them via position-adjustable antennas.…

Information Theory · Computer Science 2026-02-25 Hao Feng , Ming Zeng , Ebrahim Bedeer , Xingwang Li , Octavia A. Dobre , Zhiguo Ding

A dual-scale deployment (DSD) framework is proposed for pinching antenna systems (PASS), under which four protocols are provided. 1) For the coarse-scale deployment, the pinching antenna (PA) is transferred over a large-scale range at the…

Information Theory · Computer Science 2026-05-18 Xu Gan , Zhaolin Wang , Yuanwei Liu

This letter introduces a novel pinching-antenna-system (PASS) assisted simultaneous wireless information and power transfer (SWIPT), where multiple pinching antennas (PAs) are strategically activiated on a waveguide to facilitate…

Signal Processing · Electrical Eng. & Systems 2025-05-13 Yixuan Li , Ji Wang , Yuanwei Liu , Zhiguo Ding

This paper aims to design multiple access (MA) schemes to improve the max-min fairness (MMF) for pinching antennas (PAs)-based multigroup multicast communications, where PA placement and resource allocation are jointly optimized.…

Signal Processing · Electrical Eng. & Systems 2026-02-26 Shan Shan , Chongjun Ouyang , Yong Li , Yuanwei Liu

As an emerging flexible antenna technology for wireless communications, pinching-antenna systems, offer distinct advantages in terms of cost efficiency and deployment flexibility. This paper investigates joint transmission strategies of the…

Information Theory · Computer Science 2025-06-25 Enzhi Zhou , Jingjing Cui , Ziyue Liu , Zhiguo Ding , Pingzhi Fan

A reconfigurable pinching-antenna system (PASS) is presented, endowing pinching antennas (PAs) with both amplitude- and phase-controllable radiation beyond conventional implementations. To characterize this feature, a general and physically…

Information Theory · Computer Science 2025-09-09 Zhaolin Wang , Jiaqi Xu , Chongjun Ouyang , Xidong Mu , Yuanwei Liu

Pinching antennas (PAs), as an emerging flexible-antenna technology, enables movable PAs deployed along waveguides to customize channel conditions over a large scale. This paper investigates an application of PAs to enable physical-layer…

Signal Processing · Electrical Eng. & Systems 2025-10-14 Yang Lu , Xinke Xie , Yanqing Xu , Bo Ai , Octavia A. Dobre , Dusit Niyato

This paper exploits the dynamic features of wireless propagation environments as the basis for a new multiple access technique, termed environment division multiple access (EDMA). In particular, with the proposed pinching-antenna-assisted…

Information Theory · Computer Science 2025-11-07 Zhiguo Ding , Robert Schober , H. V. Poor

Over-the-air computation (AirComp) enables fast data aggregation for edge intelligence applications. However the performance of AirComp can be severely degraded by channel misalignments. Pinching antenna systems (PASS) have recently emerged…

Information Theory · Computer Science 2025-05-13 Zhonghao Lyu , Haoyun Li , Yulan Gao , Ming Xiao , H. Vincent Poor

Pinching-antenna systems (PASS) have emerged as a promising technology due to their ability to dynamically reconfigure wireless propagation environments. A novel PASS-based multi-user non-orthogonal multiple access (NOMA) framework is…

Signal Processing · Electrical Eng. & Systems 2025-12-04 Songtao Xue , Jingjing Zhao , Kaiquan Cai , Xidong Mu , Zhenyu Xiao , Yuanwei Liu

This letter proposes a novel user localization and channel estimation framework for pinching-antenna systems (PASS), where pinching antennas are grouped into subarrays on each waveguide to cooperatively estimate user/scatterer locations,…

Signal Processing · Electrical Eng. & Systems 2025-12-17 Xiaoxia Xu , Xidong Mu , Yuanwei Liu , Hong Xing , Arumugam Nallanathan

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…

Information Theory · Computer Science 2025-02-25 Xidong Mu , Guangyu Zhu , Yuanwei Liu

This paper investigates the performance of a pinching-antenna (PA) system with a signal waveguide and multiple pinching antennas to serve users distributed across multiple rooms. The performance of the system is evaluated through a…

Signal Processing · Electrical Eng. & Systems 2026-04-02 Yanyu Cheng , Hao Li , Zhen Wang , Zhiguo Ding