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This paper investigates a movable antenna (MA)-enabled wireless-powered communication network (WPCN), where multiple wireless devices (WDs) first harvest energy from the downlink (DL) signal broadcast by a hybrid access point (HAP) and then…

Signal Processing · Electrical Eng. & Systems 2026-01-15 Ying Gao , Qingqing Wu , Wen Chen

Movable antenna (MA) is an emerging technology which enables a local movement of the antenna in the transmitter/receiver region for improving the channel condition and communication performance. In this paper, we study the deployment of…

Information Theory · Computer Science 2023-08-21 Zhenyu Xiao , Xiangyu Pi , Lipeng Zhu , Xiang-Gen Xia , Rui Zhang

Inspired by the development of over-moded RF component as an undulator, we explored another over-moded structure that could serve the variable coupling for SRF purpose. This application is to fulfill variation of S11 from 0 to -20db with CW…

Accelerator Physics · Physics 2014-06-30 Chen Xu , Sami Tantawi

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

This paper investigates a fluid antenna (FA) enhanced integrated sensing and communication (ISAC) system consisting of a base station (BS), multiple single-antenna communication users, and one point target, where the BS is equipped with FAs…

Signal Processing · Electrical Eng. & Systems 2024-07-09 Tian Hao , Changxin Shi , Yinghong Guo , Bin Xia , Feng Yang

Satellites provide seamless coverage and are critical for emergency communications during natural disasters. However, their performance is constrained by limited spectrum and high deployment cost. To address these issues, we propose a fluid…

Signal Processing · Electrical Eng. & Systems 2026-04-28 Tianyu Han , Yongxu Zhu , Gan Zheng , Pantelis-Daniel Arapoglou

The practical roll-out of quantum communication technologies in optical networks and the adoption of novel quantum applications demand the distribution of single or entangled photons. Flexibility and dynamicity are paramount for the…

The most challenging thing in the real world is communicating with aircraft, even though several communication technologies have been adopted for tracking and monitoring the aircraft there is no cent per cent efficiency, for the…

Systems and Control · Electrical Eng. & Systems 2022-07-28 Laxminarayen N , Lokeshwaran G , Murugan K S , Jothilakshmi P

In recent years, unmanned aerial vehicles (UAVs) have become a key role in wireless communication networks due to their flexibility and dynamic adaptability. However, the openness of UAV-based communications leads to security and privacy…

Signal Processing · Electrical Eng. & Systems 2025-12-11 Chong Huang , Gaojie Chen , Zhuoao Xu , Jing Zhu , Taisong Pan , Rahim Tafazolli , Wei Huang

Integrated sensing and communication (ISAC) is a promising solution for the future sixth-generation (6G) system. However, classical fixed-position antenna (FPA) ISAC systems fail to fully utilize spatial degrees of freedom (DoFs), resulting…

Signal Processing · Electrical Eng. & Systems 2025-11-18 Yuan Guo , Wen Chen , Qingqing Wu , Yang Liu , Qiong Wu

This letter proposes a novel anti-interference communication method leveraging computational antennas, utilizing time averaging and 1-bit reconfigurable intelligent surfaces (RIS) to achieve robust signal modulation with minimal hardware…

Computational Physics · Physics 2025-10-20 Xiaocun Zong , Fan Yang , Shenheng Xu , Maokun Li

Six-dimensional movable antenna (6DMA) is an effective approach to improve wireless network capacity by adjusting the 3D positions and 3D rotations of distributed antenna surfaces based on the users' spatial distribution and statistical…

Information Theory · Computer Science 2024-03-27 Xiaodan Shao , Rui Zhang , Qijun Jiang , Robert Schober

Inducing nonreciprocal wave propagation is a fundamental challenge across a wide range of physical systems in electromagnetics, optics, and acoustics. Recent efforts to create nonreciprocal devices have departed from established…

Flexible-antenna systems, which use a small number of radio frequency (RF) chains to dynamically access a large set of candidate antenna locations, have emerged as a hardware-efficient architecture for 6G networks. Acquiring accurate…

Signal Processing · Electrical Eng. & Systems 2026-05-01 Ruoxiao Cao , Wentao Yu , Zixin Wang , Shenghui Song , Jun Zhang , Yi Gong , Khaled B. Letaief

A rotatable antenna, which is able to dynamically adjust its deflection angle, is promising to achieve better physical layer security performance for wireless communications. In this paper, considering practical scenarios with non-real-time…

Information Theory · Computer Science 2025-11-25 Pengchuan Jiang , Quanzhong Li , Lifeng Mai , Qi Zhang

In this work, we propose a novel strategy of adaptive sparse array beamformer design, referred to as regularized complementary antenna switching (RCAS), to swiftly adapt both array configuration and excitation weights in accordance to the…

Signal Processing · Electrical Eng. & Systems 2021-03-05 Xiangrong Wang , Maria Greco , Fulvio Gini

The rotary and movable antennas (ROMA) technology is efficient in enhancing wireless network capacity by adjusting both the antenna spacing and three-dimensional (3D) rotation of antenna surfaces, based on the spatial distribution of users…

Signal Processing · Electrical Eng. & Systems 2024-12-06 Wenhui Yi , Jiayi Zhang , Zhe Wang , Huahua Xiao , Bo Ai

In this paper, we propose an integrated sensing and communication (ISAC) system enabled by movable antennas (MAs), which can dynamically adjust antenna positions to enhance both sensing and communication performance for future wireless…

Information Theory · Computer Science 2025-07-17 Lebin Chen , Ming-Min Zhao , Min-Jian Zhao , Rui Zhang

In this paper, we investigate a multi-cell six-dimensional movable antenna (6DMA) network for enhancing downlink communication performance under inter-cell interference (ICI). Each base station (BS) is equipped with multiple 6DMA surfaces,…

Information Theory · Computer Science 2026-05-22 Qijun Jiang , Xiaodan Shao , Rui Zhang

To meet the growing data traffic demand in future wireless systems, novel transmission architectures capable of adapting to complex propagation environments are required. Movable antenna (MA) systems have recently emerged as a promising…

Signal Processing · Electrical Eng. & Systems 2026-04-21 Xiaoyi Zhang , Amna Irshad , Emil Björnson