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Related papers: FAS-aided Robust Anti-Jamming Communications: Cont…

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In unmanned aerial vehicle (UAV) networks, directional modulation (DM) is adopted to improve the secrecy rate (SR) performance. Alice, a ground base station, behaves as a control center, and Bob is a UAV of flying along a linear flight…

Information Theory · Computer Science 2018-08-15 Feng Shu , Zaoyu Lu , Jinyong Lin , Linlin Sun , Xiaobo Zhou , Tingting Liu , Shuo Zhang , Wenlong Cai , Jinhui Lu , Jin Wang

Low-Earth-Orbit (LEO) satellite constellations have become vital in emerging commercial and defense Non-Terrestrial Networks (NTNs). However, their predictable orbital dynamics and exposed geometries make them highly susceptible to…

Signal Processing · Electrical Eng. & Systems 2026-02-09 Shizhen Jia , Mingjun Ying , Marco Mezzavilla , Theodore S. Rappaport , Sundeep Rangan

In cell-free massive MIMO systems with multiple distributed access points (APs) serving multiple users over the same time-frequency resources, downlink beamforming is done through spatial precoding. Precoding vectors can be optimally…

Systems and Control · Electrical Eng. & Systems 2025-04-08 Mehdi Zafari , Divyanshu Pandey , Rahman Doost-Mohammady , César A. Uribe

Spatial filtering based on multiple-input multiple-output (MIMO) processing is a promising approach to jammer mitigation. Effective MIMO data detectors that mitigate smart jammers have recently been proposed, but they all assume perfect…

Signal Processing · Electrical Eng. & Systems 2025-01-28 Gian Marti , Flurin Arquint , Christoph Studer

In this paper, we analyze the role of fluid antenna systems (FAS) in multi-user systems with hardware impairments (HIs). Specifically, we investigate a scenario where a base station (BS) equipped with multiple fluid antennas communicates…

Signal Processing · Electrical Eng. & Systems 2024-12-23 Junteng Yao , Tuo Wu , Liaoshi Zhou , Ming Jin , Cunhua Pan , Maged Elkashlan , Fumiyuki Adachi , George K. Karagiannidis , Naofal Al-Dhahir , Chau Yuen

Movable antenna (MA) systems have recently attracted significant attention in the field of wireless communications owing to their exceptional capability to proactively reconfigure wireless channels via flexible antenna movements. In this…

Signal Processing · Electrical Eng. & Systems 2025-07-22 Nianzu Li , Peiran Wu , Lipeng Zhu , Weidong Mei , Boyu Ning , Derrick Wing Kwan Ng

In this letter, we investigate an unmanned aerial vehicle (UAV) communication system, where an intelligent reflecting surface (IRS) is deployed to assist in the transmission from a ground node (GN) to the UAV in the presence of a jammer. We…

Signal Processing · Electrical Eng. & Systems 2022-01-17 Zhi Ji , Wendong Yang , Xinrong Guan , Xiao Zhao , Guoxin Li , Qingqing Wu

This paper investigates the optimization of reconfigurable intelligent surface (RIS) in an integrated sensing and communication (ISAC) system. \red{To meet the demand of growing number of devices, power domain non-orthogonal multiple access…

Signal Processing · Electrical Eng. & Systems 2023-09-13 Wanting Lyu , Yue Xiu , Xinyang Li , Songjie Yang , Phee Lep Yeoh , Yonghui Li , Zhongpei Zhang

This paper investigates double RIS-assisted MIMO communication systems over Rician fading channels with finite scatterers, spatial correlation, and the existence of a double-scattering link between the transceiver. First, the statistical…

Information Theory · Computer Science 2023-09-11 Ha An Le , Trinh Van Chien , Van Duc Nguyen , Wan Choi

For millimeter-wave (mmWave) non-orthogonal multiple access (NOMA) communication systems, we propose an innovative near-field (NF) transmission framework based on dynamic metasurface antenna (DMA) technology. In this framework, a base…

Signal Processing · Electrical Eng. & Systems 2024-09-25 Yue Xiu , Yang Zhao , Songjie Yang , Yufeng Zhang , Dusit Niyato , Hongyang Du , Ning Wei

This paper explores the near field (NF) covert communication with the aid of rate-splitting multiple access (RSMA) and reconfigurable intelligent surfaces (RIS). In particular, the RIS operates in the NF of both the legitimate user and the…

Signal Processing · Electrical Eng. & Systems 2025-07-30 Atiquzzaman Mondal , Amira Bendaimi , Huseyin Arslan

A novel non-orthogonal multiple access (NOMA) based low-delay service framework is proposed for fog radio access networks (F-RANs). Fog access points (FAPs) leverage NOMA for local delivery of cached content, while the cloud access point…

Signal Processing · Electrical Eng. & Systems 2026-02-26 Yuan Ai , Xidong Mu , Pengbo Si , Yuanwei Liu

With the increasing number of wireless communication systems and the demand for bandwidth, the wireless medium has become a congested and contested environment. Operating under such an environment brings several challenges, especially for…

Information Theory · Computer Science 2022-02-17 Onur Dizdar , Bruno Clerckx

Rotatable antenna (RA) provides additional spatial degrees of freedom (DoFs) for communication systems by enabling per-antenna dynamic boresight adjustment, which is attractive for fairness-oriented multicast transmission. This letter…

Information Theory · Computer Science 2026-03-30 Weihua Zhu , Beixiong Zheng , Lipeng Zhu , Jie Tang , Yong Zeng

Dynamic Metasurface Antennas (DMAs) constitute a promising solution for extremely large antenna arrays, requiring lower power consumption and reduced hardware cost as compared to conventional phased arrays. In this paper, we consider a…

Signal Processing · Electrical Eng. & Systems 2026-05-06 Konstantinos D. Katsanos , Panagiotis Gavriilidis , George C. Alexandropoulos

To meet the ever growing demand for both high throughput and uniform coverage in future wireless networks, dense network deployment will be ubiquitous, for which co- operation among the access points is critical. Considering the…

Information Theory · Computer Science 2014-05-14 Yuanming Shi , Jun Zhang , Khaled B. Letaief

This paper considers the context of multiuser massive MIMO downlink precoding with low-resolution digital-to-analog converters (DACs) at the transmitter. This subject is motivated by the consideration that it is expensive to employ…

Signal Processing · Electrical Eng. & Systems 2024-02-28 Wai-Yiu Keung , Wing-Kin Ma

In this paper, we consider the problem of multi-unmanned aerial vehicles' scheduling for cooperative jamming, where UAVs equipped with directional antennas perform collaborative jamming tasks against several targets of interest. To ensure…

Optimization and Control · Mathematics 2023-12-01 Yixin Jiang , Lingyun Zhou , Yijia Tang , Ya Tu , Chunhong Liu , Qingjiang Shi

Dual-functional radar-communication (DFRC) has attracted considerable attention. This paper considers the frequency-selective multipath fading environment and proposes DFRC waveform design schemes based on multiple-input and multiple-output…

Information Theory · Computer Science 2025-09-10 Tianchen Liu , Yifei Liu , Liang Wu , Bo An , Zaichen Zhang , Jian Dang , Jiangzhou Wang

This paper investigates the resource allocation design for a pinching antenna (PA)-assisted multiuser multiple-input single-output (MISO) non-orthogonal multiple access (NOMA) system featuring multiple dielectric waveguides. To enhance…

Signal Processing · Electrical Eng. & Systems 2025-10-31 Shaokang Hu , Ruotong Zhao , Yihuan Liao , Derrick Wing Kwan Ng , Jinhong Yuan