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相关论文: Near-Field Communication with Massive Movable Ante…

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Electromagnetically reconfigurable fluid antenna systems (ER-FAS) introduce additional degrees of freedom in the electromagnetic (EM) domain by dynamically steering per-antenna radiation patterns, thereby enhancing power efficiency in…

信号处理 · 电气工程与系统科学 2025-09-01 Alireza Fadakar , Yuchen Zhang , Hui Chen , Musa Furkan Keskin , Henk Wymeersch , Andreas F. Molisch

This paper investigates the joint optimization of beamforming and antenna positions in fluid antenna system (FAS)-aided anti-jamming communications. We consider a multi-user multiple-input multiple-output downlink scenario where multiple…

信号处理 · 电气工程与系统科学 2026-04-14 Yifan Guo , Junshan Luo , Shilian Wang , Zhenhai Xu

As wireless systems evolve toward higher frequencies and extremely large antenna arrays, near-field (NF) propagation becomes increasingly dominant. Unlike far-field (FF) communication, which relies on a planar-wavefront model and is limited…

信号处理 · 电气工程与系统科学 2025-12-22 Lin Chen , Ahmed Elzanaty , Mustafa A. Kishk , Ying-Jun Angela Zhang

This paper considers the multi-group multicast beamforming optimization problem, for which the optimal solution has been unknown due to the non-convex and NP-hard nature of the problem. By utilizing the successive convex approximation…

信号处理 · 电气工程与系统科学 2021-04-13 Min Dong , Qiqi Wang

This paper proposes a new architecture for the low-earth orbit (LEO) satellite ground station aided by movable antenna (MA) array. Unlike conventional fixed-position antenna (FPA), the MA array can flexibly adjust antenna positions to…

信号处理 · 电气工程与系统科学 2025-09-10 Jinming Wang , Lipeng Zhu , Shuai Han , He Sun , Rui Zhang

The broadcast characteristics of sixth-generation (6G) low-earth orbit (LEO) satellite communications raise serious security issues. Movable antenna (MA) technology offers a promising physical layer security (PLS) solution by flexibly…

信息论 · 计算机科学 2026-05-19 Suhong Luo , Pan Tang , Jianhua Zhang , Ji Wang , Yixuan Li , Zihang Ding , Xingwang Li

When the concept of fluid antenna system (FAS) is applied to multiple-input multiple-output (MIMO) systems, this gives rise to MIMO-FAS, a.k.a.~fluid MIMO. Under rich scattering, the spatial correlation matrices are governed by the…

信号处理 · 电气工程与系统科学 2026-03-10 Tuo Wu , Kai-Kit Wong , Baiyang Liu , Kin-Fai Tong , Hyundong Shin

Movable antenna (MA)-enabled near-field (NF) communications offer significant potential for 6G, yet existing designs often neglect the practical constraints of hybrid beamforming (HBF) for extremely large-scale MIMO (XL-MIMO). Conversely,…

信息论 · 计算机科学 2026-05-11 Xiangqian Xu , Songjie Yang , Arumugam Nallanathan

This letter investigates a movable antenna (MA)-aided full-duplex (FD) satellite communication system, where the satellite, equipped with both transmit and receive MAs, serves multiple uplink (UL) and downlink (DL) user terminals (UTs) in…

信号处理 · 电气工程与系统科学 2024-12-23 Lifeng Lin , Jingze Ding , Zijian Zhou , Bingli Jiao

Cell-free massive MIMO communications is an emerging network technology for 5G wireless communications wherein distributed multi-antenna access points (APs) serve many users simultaneously. Most prior work on cell-free massive MIMO systems…

信息论 · 计算机科学 2020-01-22 Asmaa Abdallah , Mohammad M. Mansour

Recently, several working implementations of in--band full--duplex wireless systems have been presented, where the same node can transmit and receive simultaneously in the same frequency band. The introduction of such a possibility at the…

信息论 · 计算机科学 2016-06-01 Michele Luvisotto , Alireza Sadeghi , Farshad Lahouti , Stefano Vitturi , Michele Zorzi

In this paper, a Full Duplex (FD) eXtremely Large (XL) Multiple-Input Multiple-Output (MIMO) node equipped with reconfigurable metasurface antennas at its transmission and reception sides is considered, which is optimized for simultaneous…

信号处理 · 电气工程与系统科学 2024-11-18 Ioannis Gavras , George C. Alexandropoulos

In this paper, we investigate a six-dimensional movable antenna (6DMA)-enabled wideband terahertz (THz) communication system with sub-connected hybrid beamforming architecture at the base station (BS). In particular, the three-dimensional…

计算物理 · 物理学 2025-10-30 Wencai Yan , Wanming Hao , Yajun Fan , Yabo Guo , Qingqing Wu , Xingwang Li

Multiple-antenna broadcast channels with $M$ transmit antennas and $K$ single-antenna receivers is considered, where the channel of receiver $r$ takes one of the $J_r$ finite values. It is assumed that the channel states of each receiver…

信息论 · 计算机科学 2009-10-05 Mohammad Ali Maddah-Ali

The design of low-complexity transceivers is crucial for the deployment of next-generation wireless systems. In this work, we combine two emerging concepts, movable antennas (MA) and transmissive reconfigurable intelligent surfaces (TRIS),…

信号处理 · 电气工程与系统科学 2026-03-17 Marjan Boloori , Chu Li , Aydin Sezgin

Movable antennas offer new potential for wireless communication by introducing degrees of freedom in antenna positioning, which has recently been explored for improving sum rates. In this paper, we aim to fully leverage the capabilities of…

信号处理 · 电气工程与系统科学 2025-03-25 Songjie Yang , Zihang Wan , Yue Xiu , Boyu Ning , Yong Li , Yuenwei Liu , Chau Yuen

In this article, we address the prospects and key enabling technologies for highly efficient and accurate device positioning and tracking in 5G radio access networks. Building on the premises of ultra-dense networks as well as on the…

The concept of reconfigurable fluid antennas (FA) is a potential and promising solution to enhance the spectral efficiency of wireless communication networks. Despite their many advantages, FA-enabled communications have limitations as they…

信息论 · 计算机科学 2022-12-19 Christodoulos Skouroumounis , Ioannis Krikidis

Device-Free Localization (DFL) employs passive radio techniques capable to detect and locate people without imposing them to wear any electronic device. By exploiting the Integrated Sensing and Communication paradigm, DFL networks employ…

信号处理 · 电气工程与系统科学 2024-05-17 Vittorio Rampa , Federica Fieramosca , Stefano Savazzi , Michele D'Amico

Reconfigurable antenna technology, such as movable antennas (MAs) and rotatable antennas (RAs), has emerged as a promising solution to enhance the communication performance of wireless systems by exploiting the new degree of freedom (DoF)…

信号处理 · 电气工程与系统科学 2026-04-07 Weijia Wang , Changsheng You , Xiaodan Shao , Rui Zhang