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Related papers: Pinching-Antenna Systems (PASS)-based Indoor Posit…

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The joint transmit and pinching beamforming design for spectral efficiency (SE) and energy efficiency (EE) tradeoff in pinching-antenna systems (PASS) is proposed, under practical channel and energy consumption models. In the single-user…

Signal Processing · Electrical Eng. & Systems 2026-04-14 Zihao Zhou , Zhaolin Wang , Yuanwei Liu

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

Security is emerging as a critical performance metric for next-generation wireless networks, but conventional multiple-input-multiple-output (MIMO) systems often suffer from severe path loss and are vulnerable to nearby eavesdroppers due to…

Signal Processing · Electrical Eng. & Systems 2025-04-16 Pigi P. Papanikolaou , Dimitrios Bozanis , Sotiris A. Tegos , Panagiotis D. Diamantoulakis , George K. Karagiannidis

Pinching-antenna (PA) systems route millimeter wave (mmWave) signals through a leaky waveguide and radiate them at "pinch" apertures, offering low-cost line-of-sight (LoS) coverage. However, when multiple PAs serve multiple users…

Signal Processing · Electrical Eng. & Systems 2025-05-27 Thrassos K. Oikonomou , Sotiris A. Tegos , Panagiotis D. Diamantoulakis , Yuanwei Liu , George K. Karagiannidis

A pinching antenna system (PASS) assisted cell-free communication system is proposed. A sum rate maximization problem under the BS power budget constraint and PA deployment constraint is formulated. To tackle the proposed non-convex…

Signal Processing · Electrical Eng. & Systems 2026-05-20 Haochen Li , Jiayi Lei , Cheng Zeng , Zhaoming Hu , Chao Dong , Yuanwei Liu

In this letter, a pinching antenna (PA)-aided scheme for establishing a secure integrated sensing and communication system (ISAC) is investigated. The underlying system comprises a dual-functional radar communication (DFRC) base station…

Information Theory · Computer Science 2025-07-18 Elmehdi Illi , Marwa Qaraqe , Ali Ghrayeb

This article investigates secure multicast communications in pinching-antenna systems (PASS), where pinching beamforming is enabled by adaptively adjusting pinching antenna (PAs) positions along waveguides to improve multicast security.…

Signal Processing · Electrical Eng. & Systems 2025-09-22 Shan Shan , Chongjun Ouyang , Yong Li , Yuanwei Liu

A pinching-antenna system (PASS)-enhanced mobile edge computing (MEC) architecture is investigated to improve the task offloading efficiency and latency performance in dynamic wireless environments. By leveraging dielectric waveguides and…

Signal Processing · Electrical Eng. & Systems 2025-10-28 Zhaoming Hu , Ruikang Zhong , Xidong Mu , Dengao Li , Yuanwei Liu

The Pinching-Antenna SyStem (PASS) reconstructs wireless channels through \emph{pinching beamforming}, wherein the activated positions of pinching antennas along dielectric waveguides are optimized to shape the radiation pattern. The aim of…

Signal Processing · Electrical Eng. & Systems 2025-05-16 Chongjun Ouyang , Zhaolin Wang , Yuanwei Liu , Zhiguo Ding

A multiple-waveguide pinching-antenna (PA)-based multi-user communication system is investigated. With a given number of PAs, two deployment strategies are considered, namely the centralized PA deployment, where all PAs are switched between…

Signal Processing · Electrical Eng. & Systems 2026-02-27 Mengyu Qian , Xidong Mu , Li You , Michail Matthaiou

Federated learning (FL) in wireless networks is limited by straggler delays from unpredictable channel conditions. In this paper, we investigate the pinching-antenna system (PASS), which dynamically 'pinches' the radiator along a dielectric…

Information Theory · Computer Science 2025-10-28 Yushen Lin , Zihan Chen , Zhiguo Ding

The pinching-antenna system (PASS) introduces new degrees of freedom (DoFs) for physical layer security (PLS) through pinching beamforming. In this paper, a couple of scenarios for secure beamforming for PASS are studied. 1) For the case…

Signal Processing · Electrical Eng. & Systems 2025-07-04 Mingjun Sun , Chongjun Ouyang , Shaochuan Wu , Yuanwei Liu

Pinching-antenna systems (PASS) have recently attracted considerable attention owing to their capability of flexibly reconfiguring large-scale wireless channels. Motivated by this potential, we investigate the issue of joint localization…

Signal Processing · Electrical Eng. & Systems 2025-12-11 Min Liu , Yue Xiao , Shuaixin Yang , Gang Wu , Xianfu Lei , Wei Xiang

Pinching antennas, implemented by applying small dielectric particles on a waveguide, have emerged as a promising flexible-antenna technology ideal for next-generation wireless communications systems. Unlike conventional flexible-antenna…

Signal Processing · Electrical Eng. & Systems 2025-08-25 Yanqing Xu , Zhiguo Ding , Donghong Cai , Vincent W. S. Wong

The emerging pinching antenna (PA) technology enables flexible antenna positioning for creating line-of-sight (LoS) links, thus offering substantial potential to facilitate ambient signal-based backscatter communication (BSC). This paper…

Signal Processing · Electrical Eng. & Systems 2025-12-15 Yulei Wang , Yalin Liu , Yaru Fu , 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

Pinching antennas (PAs), a new type of reconfigurable and flexible antenna structures, have recently attracted significant research interest due to their ability to create line-of-sight links and mitigate large-scale path loss. Owing to…

Signal Processing · Electrical Eng. & Systems 2025-09-26 Peng Liu , Zesong Fei , Meng Hua , Guangji Chen , Xinyi Wang , Ruiqi Liu

The fundamental sensing limit of pinching-antenna systems (PASS) is studied from a Bayesian Cram\'er-Rao bound (BCRB) perspective. Compared to conventional CRB, BCRB is independent of the exact values of sensing parameters and is not…

Signal Processing · Electrical Eng. & Systems 2025-10-13 Hao Jiang , Chongjun Ouyang , Zhaolin Wang , Yuanwei Liu , Arumugam Nallanathan , Zhiguo Ding

We investigate a novel integrated sensing and communication (ISAC) system supported by pinching antennas (PAs), which can be dynamically activated along a dielectric waveguide to collect spatially diverse observations. This capability…

Signal Processing · Electrical Eng. & Systems 2025-05-06 Ata Khalili , Brikena Kaziu , Vasilis K. Papanikolaou , Robert Schober

Pinching antennas, realized through position-adjustable radiating elements along dielectric waveguides, have emerged as a promising flexible-antenna technology thanks to their ability to dynamically reshape large-scale channel conditions.…

Signal Processing · Electrical Eng. & Systems 2025-12-05 Yanqing Xu , Yang Lu , Zhiguo Ding , Tsung-Hui Chang
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