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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

A novel pinching antenna system (PASS) enabled wireless power transfer (WPT) framework is proposed, where energy harvesting receivers (EHRs) and information decoding receivers (IDRs) coexist. By activating pinching antennas (PAs) near both…

Signal Processing · Electrical Eng. & Systems 2025-11-17 Deqiao Gan , Xiaoxia Xu , Xiaohu Ge , Yue Liu , Yuanwei Liu

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

Pinching antennas have emerged as a promising technology for reconfiguring wireless propagation environments, particularly in high-frequency communication systems operating in the millimeter-wave and terahertz bands. By enabling dynamic…

Information Theory · Computer Science 2025-06-09 Ming Zeng , Ji Wang , Octavia A. Dobre , Zhiguo Ding , George K. Karagiannidis , Robert Schober , H. Vincent Poor

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

We study the energy efficiency of pinching-antenna systems (PASSs) by developing a consistent formulation for power distribution in these systems. The per-antenna power distribution in PASSs is not controlled explicitly by a power…

Signal Processing · Electrical Eng. & Systems 2026-02-17 Saba Asaad , Chongjun Ouyang , Ali Bereyhi , Zhiguo Ding

A pinching antenna system (PASS) assisted cognitive radio (CR) system is proposed. A secondary system sum rate maximization problem is formulated by jointly considering the base station (BS) power budget, the pinching antenna (PA)…

Signal Processing · Electrical Eng. & Systems 2026-05-05 Haochen Li , Ruikang Zhong , Zhaoming Hu , Zheng Zhang , Yaoyue Hu , Chao Dong

This paper investigates the secrecy performance of pinching-antenna systems (PAS) under practical pinching-position activation uncertainty. By dynamically selecting the radiation point along a dielectric waveguide, PAS enables low-cost…

Signal Processing · Electrical Eng. & Systems 2026-04-15 Saeid Pakravan , Imene Trigui , Wessam Ajib , Wei-Ping Zhu

To meet the urgent demands for spectral efficiency and multi-user access in high-frequency application scenario for the sixth-generation wireless communication, this paper investigates a rate splitting multiple access (RSMA) system assisted…

Signal Processing · Electrical Eng. & Systems 2026-04-17 Peiyu Wang , Hong Wang , Yaru Fu , Rongfang Song

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

In this paper, we explore a novel joint uplink and downlink framework utilizing a pinching antenna system (PASS). We consider two waveguides, one dedicated to transmission and one to reception, and both of them are connected to a base…

Signal Processing · Electrical Eng. & Systems 2025-10-28 Shreya Khisa , Ali Amhaz , Mohamed Elhattab , Chadi Assi , Sanaa Sharafeddine

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

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

Next-generation (NG) wireless networks must embrace innate intelligence in support of demanding emerging applications, such as extended reality and autonomous systems, under ultra-reliable and low-latency requirements. Pinching antennas…

Networking and Internet Architecture · Computer Science 2025-11-12 Fang Fang , Zhiguo Ding , Victor C. M. Leung , Lajos Hanzo

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

In this paper, a novel pinching-antenna assisted index modulation (PA-IM) scheme is proposed for improving the spectral efficiency without increasing the hardware complexity, where the information bits are conveyed not only by the…

Signal Processing · Electrical Eng. & Systems 2026-02-13 Shuaixin Yang , Yijia Li , Yue Xiao , Yong Liang Guan , Xianfu Lei , Zhiguo Ding

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) 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

A novel GPASS architecture is proposed for jointly learning pinching beamforming and transmit beamforming in pinching antenna systems (PASS). The GPASS is with a staged architecture, where the positions of pinching antennas are first…

Signal Processing · Electrical Eng. & Systems 2025-02-04 Jia Guo , Yuanwei Liu , Arumugam Nallanathan

The aim of this letter is to explore the capability of pinching-antenna systems to construct line-of-sight (LoS) links in the presence of LoS blockages. Specifically, pinching antennas are pre-installed at preconfigured positions along…

Signal Processing · Electrical Eng. & Systems 2025-07-15 Kaidi Wang , Chongjun Ouyang , Yuanwei Liu , Zhiguo Ding
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