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Pinching Antennas (PAs) represent a revolutionary flexible antenna technology that leverages dielectric waveguides and electromagnetic coupling to mitigate large-scale path loss. This letter is the first to explore channel estimation for…

Information Theory · Computer Science 2025-05-13 Jian Xiao , Ji Wang , Yuanwei Liu

The Pinching Antenna System (PAS) has emerged as a promising technology to dynamically reconfigure wireless propagation environments in 6G networks. By activating radiating elements at arbitrary positions along a dielectric waveguide, PAS…

Signal Processing · Electrical Eng. & Systems 2025-12-22 Yu Hua , Yaru Fu , Yalin Liu , Zheng Shi , Kevin Hung

A wireless sensing architecture via pinching antenna systems is proposed. Compared to conventional wireless systems, PASS offers flexible antenna deployment and improved probing performance for wireless sensing by leveraging dielectric…

Signal Processing · Electrical Eng. & Systems 2025-05-22 Zhaolin Wang , Chongjun Ouyang , Yuanwei Liu , Arumugam Nallanathan

Pinching antennas is a novel flexible-antenna technology, which can be realized by employing small dielectric particles on a waveguide. The aim of this letter is to characterize the array gain achieved by pinching-antenna systems (PASS). A…

Signal Processing · Electrical Eng. & Systems 2025-04-15 Chongjun Ouyang , Zhaolin Wang , Yuanwei Liu , Zhiguo Ding

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

This work investigates the potential of exploiting movable antennas (MAs) to enhance the performance of a multi-user downlink integrated sensing and communication (ISAC) system. Specifically, we formulate an optimization problem to maximize…

Information Theory · Computer Science 2025-03-31 Yanze Han , Min Li , Xingyu Zhao , Ming-Min Zhao , Min-Jian Zhao

This paper investigates coordinated downlink transmission in a multi-base station (multi-BS) multi-reconfigurable intelligent surface (multi-RIS)-assisted pinching-antenna (PA) system, where each user equipment (UE) is associated with a…

Signal Processing · Electrical Eng. & Systems 2026-05-05 Changpeng He , Yang Lu , Wei Chen , Bo Ai , Arumugam Nallanathan , 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

Passive radio frequency (PRF)-based indoor positioning systems (IPS) have attracted researchers' attention due to their low price, easy and customizable configuration, and non-invasive design. This paper proposes a PRF-based…

Signal Processing · Electrical Eng. & Systems 2023-04-14 Liangqi Yuan , Houlin Chen , Robert Ewing , Jia Li

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 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 article, we develop an analytical radiation-pattern model for pinching-antenna systems (PASS) based on a two-dimensional dielectric slab waveguide. The model is derived in two steps. First, we employ coupled-mode theory (CMT) to…

Signal Processing · Electrical Eng. & Systems 2026-05-05 Muhammad Zubair , Vasilis K. Papanikolaou , Robert Schober

Pinching antenna systems (PASS) have been proposed as a revolutionary flexible antenna technology which facilitates line-of-sight links via numerous low-cost pinching antennas with adjustable activation positions over waveguides. This…

Signal Processing · Electrical Eng. & Systems 2025-04-24 Luyuan Zhang , Xidong Mu , An Liu , Yuanwei Liu

In this paper, we investigate an uplink communication scenario in which multiple users communicate with an access point (AP) employing non-orthogonal multiple access (NOMA). A pinching antenna, which can be activated at an arbitrary point…

Information Theory · Computer Science 2025-10-21 Ming Zeng , Ji Wang , Xingwang Li , Gongpu Wang , Octavia A. Dobre , Zhiguo Ding

A joint communication and computation (JCC) framework using segmented pinching antenna system (PASS) is proposed, where both the communication bit streams and computation data are simultaneously transmitted via uplink communications. The…

Signal Processing · Electrical Eng. & Systems 2025-11-21 Deqiao Gan , Xiaoxia Xu , Xiaohu Ge , Yuanwei Liu

This letter investigates the integration of pinching-antenna systems (PASS) with orthogonal frequency division multiplexing (OFDM) to ensure their compatibility and to explore the frequency-selective behavior inherent to PASS. First, an…

Information Theory · Computer Science 2025-10-17 Jian Xiao , Ji Wang , Ming Zeng , Yuanwei Liu , George K. Karagiannidis

The applications of wireless power transfer technology to wireless communications can help build a wireless powered communication network (WPCN) with more reliable and sustainable power supply compared to the conventional battery-powered…

Networking and Internet Architecture · Computer Science 2015-12-10 Suzhi Bi , Rui Zhang

Pinching antenna systems (PASS) enable reconfigurable radiating elements and extended line-of-sight communication, mitigating path loss effects. However, existing designs lack fully controllable radiation weights, as they are governed by…

Information Theory · Computer Science 2026-05-27 Askin Altinoklu , Leila Musavian

Pinching antenna system (PASS) configures the positions of pinching antennas (PAs) along dielectric waveguides to change both large-scale fading and small-scale scattering, which is known as pinching beamforming. A novel non-orthogonal…

Information Theory · Computer Science 2025-06-04 Deqiao Gan , Xiaoxia Xu , Jiakuo Zuo , Xiaohu Ge , Yuanwei Liu

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