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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

We propose a directional pinching-antenna system (DiPASS), a comprehensive framework that transitions PASS modeling from idealized abstraction to physical consistency. DiPASS introduces the first channel model that accurately captures the…

Information Theory · Computer Science 2025-11-25 Runxin Zhang , Yulin Shao , Yuanwei Liu

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

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

A sensing-aided covert communication network empowered by pinching antenna systems (PASS) is proposed in this work. Unlike conventional fixed-position MIMO arrays, PASS dynamically reconfigures its pinching antennas (PAs) closer to the…

Signal Processing · Electrical Eng. & Systems 2025-09-09 Hao Jiang , Zhaolin Wang , Yuanwei Liu , Arumugam Nallanathan , Zhiguo Ding

This letter investigates multi-mode pinching antenna systems (PASS), where signals of multiple orthogonal modes can be transmitted within a dielectric waveguide and radiated by pinching antennas (PAs). This enables mode-domain multiplexing…

Signal Processing · Electrical Eng. & Systems 2026-03-10 Xiaoxia Xu , Xidong Mu , Yuanwei Liu , Arumugam Nallanathan

Pinching antenna systems (PASS) have recently emerged as a promising architecture for high-frequency wireless communications. In this letter, we investigate localization in PASS by jointly exploiting the received signal amplitude and phase…

Information Theory · Computer Science 2026-02-25 Hao Feng , Ebrahim Bedeer , Ming Zeng , Xingwang Li , Shimin Gong , Quoc-Viet Pham

Pinching-antenna systems (PASS) have been recently proposed to improve the performance of wireless networks by reconfiguring both the large-scale and small-scale channel conditions. However, existing studies ignore the physical constraints…

Signal Processing · Electrical Eng. & Systems 2025-07-04 Yiming Xu , Dongfang Xu , Xianghao Yu , Shenghui Song , Zhiguo Ding , Robert Schober

Waveguide-based pinching-antenna systems (PASS) have recently emerged as a promising solution to mitigate severe propagation losses in millimeter-wave and terahertz bands by intelligently and flexibly establishing line-of-sight links.…

Signal Processing · Electrical Eng. & Systems 2025-10-22 Kasun R. Wijewardhana , Animesh Yadav , Ming Zeng , Mohamed Elsayed , Octavia A. Dobre , Zhiguo Ding

In this paper, a novel pinching antenna-aided spatial multiplexing (PASM) architecture is conceived, which intrinsically amalgamates the benefits of flexible radiating element placement with radio-frequency (RF) chain transmission.…

Signal Processing · Electrical Eng. & Systems 2026-04-30 Ruijie Li , Yue Xiao , Shuaixin Yang , Gang Wu , Xianfu Lei , Ming Xiao

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

The pinching-antenna systems (PASS), which activate small dielectric particles along a dielectric waveguide, has recently emerged as a promising paradigm for flexible antenna deployment in next-generation wireless communication networks.…

Systems and Control · Electrical Eng. & Systems 2025-09-08 Han Zhang , Bingxin Zhang , Yizhe Zhao , Kun Yang , Guopeng Zhang

The pinching-antenna system (PASS) enables wireless channel reconfiguration through optimized placement of pinching antennas along dielectric waveguides. In this article, a unified analytical framework is proposed to characterize the…

Signal Processing · Electrical Eng. & Systems 2026-02-13 Chongjun Ouyang , Hao Jiang , Zhaolin Wang , Yuanwei Liu , Zhiguo Ding

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 technology that enables the large-scale movement of antenna elements, offering significant potential for performance gains in next-generation wireless networks. This paper investigates the…

Signal Processing · Electrical Eng. & Systems 2025-12-23 Yue Zhang , Yaru Fu , Pei Liu , Yalin Liu , Kevin Hung

Millimeter-wave and terahertz communications face a fundamental challenge: overcoming severe path loss without sacrificing spectral efficiency. Pinching antenna systems (PASS) address this by bringing radiators physically close to users,…

Information Theory · Computer Science 2026-04-03 Dengke Wei , Runxin Zhang , Yulin Shao , Fen Hou , Shaodan Ma

The evolution of wireless communication systems requires flexible, energy-efficient, and cost-effective antenna technologies. Pinching antennas (PAs), which can dynamically control electromagnetic wave propagation through binary activation…

Pinching antenna systems (PAS) have recently emerged as a promising architecture for flexible and reconfigurable wireless communications. However, their performance is fundamentally constrained by in-waveguide attenuation, which is…

Signal Processing · Electrical Eng. & Systems 2026-03-06 Ximing Xie , Hao Qin , Fang Fang , Xianbin Wang

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

Pinching-antenna systems (PASs) have been proposed as a flexible antenna technology to fulfill the stringent requirements of high data rate and large-scale equipment deployment in future wireless networks. The principle of PA involves…

Signal Processing · Electrical Eng. & Systems 2026-03-17 Haoran Pang , Miaowen Wen , Fei Ji , Jun Li , Yiwei Tao