Explanipedia

A Stochastic Geometric Analysis on Multi-cell Pinching-antenna Systems under Blockage Effect Open

Yanshi Sun, Zhiguo Ding, George K. Karagiannidis · 2025

Recently, the study on pinching-antenna technique has attracted significant attention. However, most relevant literature focuses on a single-cell scenario, where the effect from the interfering pinching-antennas on waveguides connected to …

BERT4beam: Large AI Model Enabled Generalized Beamforming Optimization Open

Yuhang Li, Yang Lu, Wei Chen, Bo Ai, Zhiguo Ding , et al. · 2025

Artificial intelligence (AI) is anticipated to emerge as a pivotal enabler for the forthcoming sixth-generation (6G) wireless communication systems. However, current research efforts regarding large AI models for wireless communications pr…

Analog Over-the-Air Federated Learning with Interference-Based Energy Harvesting Open

Ahmad Massud Tota Khel, Aïssa Ikhlef, Zhiguo Ding, Hongjian Sun · 2025

We consider analog over-the-air federated learning, where devices harvest energy from in-band and out-band radio frequency signals, with the former also causing co-channel interference (CCI). To mitigate the aggregation error, we propose a…

Uplink and Downlink Communications in Segmented Waveguide-Enabled Pinching-Antenna Systems (SWANs) Open

Chongjun Ouyang, Hao Jiang, Zhaolin Wang, Yuanwei Liu, Zhiguo Ding · 2025

A segmented waveguide-enabled pinching-antenna system (SWAN) is proposed, in which a segmented waveguide composed of multiple short dielectric waveguide segments is employed to radiate or receive signals through the pinching antennas (PAs)…

Pinching Antenna System (PASS) Enhanced Covert Communications: Against Warden via Sensing Open

Hao Jiang, Zhaolin Wang, Yuanwei Liu, Arumugam Nallanathan, Zhiguo Ding · 2025

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 leg…

A Community Detection Method based on Formal Concept Lattice Open

Tiantian Wang, Zhen Qi, Zhiguo Ding · 2025

Computer science Physics

Community detection aims to uncover groups of vertices in a network that are more closely connected to each other than to the rest of the graph. While many existing algorithms rely purely on structural information, additional insights can …

Pinching-Antenna Systems (PASS): A Tutorial Open

Yuanwei Liu, Hao Jiang, Xiaoxia Xu, Zhaolin Wang, Chongjun Ouyang , et al. · 2025

Pinching antenna systems (PASS) present a breakthrough among the flexible-antenna technologies, and distinguish themselves by facilitating large-scale antenna reconfiguration, line-of-sight creation, scalable implementation, and near-field…

Analytical Optimization for Antenna Placement in Pinching-Antenna Systems Open

Zhiguo Ding, H. Vincent Poor · 2025

As the main issue in pinching-antenna system design, antenna location optimization is key to realizing channel reconfigurability and system flexibility. Most existing works in this area adopt sophisticated optimization and learning tools t…

Robust Resource Allocation for Pinching-Antenna Systems under Imperfect CSI Open

Ming Zeng, Xianbin Wang, Yuanwei Liu, Zhiguo Ding, George K. Karagiannidis , et al. · 2025

Pinching-antenna technology has lately showcased its promising capability for reconfiguring wireless propagation environments, especially in high-frequency communication systems like millimeter-wave and terahertz bands. By dynamically plac…

Unveiling low productivity premium: A tale from emerging market Open

Zhiguo Ding, Ji Qi, Yun Tang, Xuankai Zhao · 2025

Economics

This study investigates how firm-level productivity, measured by total factor productivity (TFP), is priced in cross-sectional stock returns in China, which is the largest emerging market as well as the global manufacturing hub. We documen…

Pinching-Antenna Systems with LoS Blockages Open

Kaidi Wang, Chongjun Ouyang, Yuanwei Liu, Zhiguo Ding · 2025

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 wav…

Pinching-Antenna Systems for Physical Layer Security Open

Kaidi Wang, Zhiguo Ding, Naofal Al-Dhahir · 2025

This letter investigates the potential of pinching-antenna systems for enhancing physical layer security. By pre-installing multiple pinching antennas at discrete positions along a waveguide, the capability of the considered system to perf…

Deep Learning Optimization of Two-State Pinching Antennas Systems Open

Odysseas G. Karagiannidis, Victoria E. Galanopoulou, Panagiotis D. Diamantoulakis, Zhiguo Ding, Octavia A. Dobre · 2025

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-Assisted Index Modulation: Channel Modeling, Transceiver Design, and Performance Analysis Open

Shuaixin Yang, Yijia Li, Yue Xiao, Yong Guan, Xianfu Lei , et al. · 2025

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 conventi…

Pinching-Antenna Systems with In-Waveguide Attenuation: Performance Analysis and Algorithm Design Open

Zhiguo Ding, Tsung‐Hui Chang · 2025

Pinching-antenna systems have emerged as a promising flexible-antenna architecture for next-generation wireless networks, enabling enhanced adaptability and user-centric connectivity through antenna repositioning along waveguides. However,…

Joint Transmission for Cellular Networks with Pinching Antennas: System Design and Analysis Open

Enzhi Zhou, Jingjing Cui, Ziyue Liu, Zhiguo Ding, Pingzhi Fan · 2025

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 th…

Capacity Characterization of Pinching-Antenna Systems Open

Chongjun Ouyang, Zhaolin Wang, Yuanwei Liu, Zhiguo Ding · 2025

Unlike conventional systems using a fixed-location antenna, the channel capacity of the pinching-antenna system (PASS) is determined by the activated positions of pinching antennas. This article characterizes the capacity region of multius…

A Gradient Meta-Learning Joint Optimization for Beamforming and Antenna Position in Pinching-Antenna Systems Open

Kang Zhou, Weixi Zhou, Donghong Cai, Xianfu Lei, Yanqing Xu , et al. · 2025

In this paper, we consider a novel optimization design for multi-waveguide pinching-antenna systems, aiming to maximize the weighted sum rate (WSR) by jointly optimizing beamforming coefficients and antenna position. To handle the formulat…

Zero-Energy RIS-Assisted Communications With Noise Modulation and Interference-Based Energy Harvesting Open

Ahmad Massud Tota Khel, Aïssa Ikhlef, Zhiguo Ding, Hongjian Sun · 2025

Physics Computer science Engineering

To advance towards carbon-neutrality and improve the limited performance of conventional passive wireless communications, in this paper, we investigate the integration of noise modulation with zero-energy reconfigurable intelligent surface…

Zero-Energy RIS-Assisted Communications With Noise Modulation and Interference-Based Energy Harvesting Open

Ahmad Massud Tota Khel, Aïssa Ikhlef, Zhiguo Ding, Hongjian Sun · 2025

To advance towards carbon-neutrality and improve the limited {performance} of conventional passive wireless communications, in this paper, we investigate the integration of noise modulation with zero-energy reconfigurable intelligent surfa…

Rate Region of ISAC for Pinching-Antenna Systems Open

Chongjun Ouyang, Zhaolin Wang, Yuanwei Liu, Zhiguo Ding · 2025

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 o…

Energy-Efficient Resource Allocation for NOMA-Assisted Uplink Pinching-Antenna Systems Open

Ming Zeng, Xingwang Li, Ji Wang, Gaojian Huang, Octavia A. Dobre , et al. · 2025

The pinching-antenna architecture has emerged as a promising solution for reconfiguring wireless propagation environments and enhancing system performance. While prior research has primarily focused on sum-rate maximization or transmit pow…

A Robust Design for BackCom Assisted Hybrid NOMA Open

Muhammad Fainan Hanif, Le‐Nam Tran, Zhiguo Ding, Tharmalingam Ratnarajah · 2025

Hybrid non-orthogonal multiple access (H-NOMA) is inherently an enabler of massive machine type communications, a key use case for sixth-generation (6G) systems. Together with backscatter communication (BackCom), it seamlessly integrates w…

Antenna Activation and Resource Allocation in Multi-Waveguide Pinching-Antenna Systems Open

Kaidi Wang, Zhiguo Ding, George K. Karagiannidis · 2025

Pinching antennas, as a novel flexible-antenna technology capable of establishing line of sight (LoS) connections and effectively mitigating large-scale path loss, have recently attracted considerable research interests. However, the imple…

Improved ALOHA-based URA with Index Modulation: Efficient Decoding and Analysis Open

Linjie Yang, Pingzhi Fan, Zhiguo Ding, Jingqiu Gao · 2025

In this paper, an improved ALOHA-based unsourced random access (URA) scheme is proposed in MIMO channels. The channel coherent interval is divided into multiple sub-slots and each active user selects several sub-slots to send its codeword,…

Channel Estimation for mmWave Pinching-Antenna Systems Open

Gui Zhou, Vasilis K. Papanikolaou, Zhiguo Ding, Robert Schober · 2025

The full potential of pinching-antenna systems (PAS) can be unblocked if pinching antennas can be accurately activated at positions tailored for the serving users', which means that acquiring accurate channel state information (CSI) at arb…

Intelligent Test Case Generation Method for Fuzzing IoT Protocols Based on LLM Open

Ming Zhong, Zisheng Zeng, Yike Guo, Dandan Zhao, Bo Zhang , et al. · 2025

Computer science Biology

The Internet of Things (IoT) protocols are a core element of IoT systems, providing the fundamental support for communication and data exchange between devices. These protocols enable various devices to connect and work together. However, …

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