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相关论文: Unlocking FAS-RIS Security Analysis with Block-Cor…

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This paper studies the physical layer security (PLS) of a vehicular network employing a reconfigurable intelligent surface (RIS). RIS technologies are emerging as an important paradigm for the realisation of smart radio environments, where…

信号处理 · 电气工程与系统科学 2019-12-30 Abubakar U. Makarfi , Khaled M. Rabie , Omprakash Kaiwartya , Xingwang Li , Rupak Kharel

The synergy of fluid antenna systems (FAS) and reconfigurable intelligent surfaces (RIS) is poised to unlock robust Vehicle-to-Everything (V2X) communications. However, a critical gap persists between theoretical predictions and real-world…

信号处理 · 电气工程与系统科学 2025-12-23 Tuo Wu , Xiazhi Lai , Maged Elkashlan , Naofal Al-Dhahir , Matthew C. Valenti , Fumiyuki Adachi

This paper studies the physical layer security (PLS) of a vehicular network employing reconfigurable intelligent surfaces (RISs). RIS technologies are emerging as an important paradigm for the realisation of next-generation smart radio…

In this letter, we analyze the secrecy performance of a reconfigurable intelligent surface (RIS)-aided communication system with spatially random unmanned aerial vehicles (UAVs) acting as eavesdroppers. We consider the scenarios where the…

信息论 · 计算机科学 2022-08-17 Lai Wei , Kezhi Wang , Cunhua Pan , Maged Elkashlan

This letter investigates the performance of emerging wireless communication systems assisted by a fluid reconfigurable intelligent surface (FRIS). Unlike conventional reconfigurable intelligent surfaces (RISs), an FRIS consists of…

This paper advocates a fluid antenna system (FAS)-assisted long-range communication (LoRa-FAS) for Internet-of-Things (IoT) applications. \textcolor{blue}{In the proposed system, FAS provides spatial diversity gains for LoRa, eliminating…

信号处理 · 电气工程与系统科学 2025-07-08 Gaoze Mu , Yanzhao Hou , Kai-Kit Wong , Mingjie Chen , Qimei Cui , Xiaofeng Tao , Ping Zhang

Simultaneously transmitting and reflecting reconfigurable intelligent surfaces (STAR-RISs) have emerged as a promising technology for enabling full-space signal manipulation and enhancing wireless network coverage and capacity. In this…

信号处理 · 电气工程与系统科学 2025-12-15 Taissir Y. Elganimi , Mahmoud Aldababsa , Ali A. Nasir , Khaled M. Rabie

Fluid antenna (FA) has become a highly promising technology and has recently been used to enhance the integrated sensing and communication (ISAC) system. However, the scenario where sensing targets act as eavesdroppers in ISAC and how to…

信息论 · 计算机科学 2026-02-27 Yunxiao Li , Qian Zhang , Xuejun Cheng , Zhiguo Wang , Xiaoyan Wang , Hongji Xu , Ju Liu

In this paper, a reconfigurable intelligent surface (RIS)-aided underlay cognitive radio network is investigated. An RIS is utilized to improve the secondary network (SN) reliability and robustness while simultaneously increasing the…

信号处理 · 电气工程与系统科学 2022-09-27 Majid H. Khoshafa , Telex M. N. Ngatchede , Mohamed H. Ahmed

In this paper, we investigate the physical layer security in the reconfigurable intelligent surface (RIS)-aided cell-free networks. A maximum weighted sum secrecy rate problem is formulated by jointly optimizing the active beamforming (BF)…

信息论 · 计算机科学 2022-02-16 Wanming Hao , Junjie Li , Gangcan Sun , Ming Zeng , Octavia A. Dobre

Enormous fluid antenna systems (E-FAS) have recently emerged as a surface-wave (SW)-enabled architecture that can induce controllable large-scale channel gains through guided electromagnetic routing. This paper develops a secrecy analysis…

Despite the enhanced spectral efficiency brought by the integrated radar and communication technique, it poses significant risks to communication security when confronted with malicious radar targets. To address this issue, a reconfigurable…

信号处理 · 电气工程与系统科学 2024-12-17 Tong-Xing Zheng , Xin Chen , Lan Lan , Ying Ju , Xiaoyan Hu , Rongke Liu , Derrick Wing Kwan Ng , Tiejun Cui

Reconfigurable intelligent surface (RIS) technology is emerging as a promising technique for performance enhancement for next-generation wireless networks. This paper investigates the physical layer security of an RIS-assisted…

信息论 · 计算机科学 2024-03-25 Wei Shi , Jindan Xu , Wei Xu , Chau Yuen , A. Lee Swindlehurst , Chunming Zhao

In this paper, we investigate the integration of simultaneously transmitting and reflecting reconfigurable intelligent surfaces (STAR-RIS) with rate-splitting multiple access (RSMA) for improving physical layer security (PLS) in integrated…

信号处理 · 电气工程与系统科学 2025-11-04 Thanh Nha To , Hoang Lai Pham , Quynh Nguyen Thi , Tuan Anh Pham , Le Thanh Bang

This article presents a novel perspective to model and simulate reconfigurable intelligent surface (RIS)-assisted communication systems. Traditional methods in antenna design often rely on array method to simulate, whereas communication…

应用物理 · 物理学 2025-01-28 Xiaocun Zong , Fan Yang , Zhijun Zhang , Shenheng Xu , Maokun Li

This paper investigates robust secure communications in a near-field integrated sensing, communication, and powering (ISCAP) system, in which the base station (BS) is equipped with an extremely large-scale antenna array (ELAA). In this…

信号处理 · 电气工程与系统科学 2025-05-22 Zixiang Ren , Siyao Zhang , Ling Qiu , Derrick Wing Kwan Ng , Jie Xu

Programmable metasurfaces and adjustable antennas are promising technologies. The security of a rotatable array system is investigated in this paper. A dual-base-station (BS) architecture is adopted, in which the BSs collaboratively perform…

信号处理 · 电气工程与系统科学 2025-11-18 Maolin Li , Feng Shu , Minghao Chen , Cunhua Pan , Fuhui Zhou , Yongpeng Wu , Liang Yang

This paper investigates the performance of a multi-reconfigurable intelligent surface (RIS)-assisted fluid antenna system (FAS). In this system, a single-antenna transmitter communicates with a receiver equipped with a planar FAS through…

信号处理 · 电气工程与系统科学 2025-04-29 Mahmoud Aldababsa , Taissir Y. Elganimi , Mahmoud A. Albreem , Saeed Abdallah

The appearance of sixth-generation networks has resulted in the proposal of several solutions to tackle signal loss. One of these solutions is the utilization of reconfigurable intelligent surfaces (RIS), which can reflect or refract…

In response to the security blind zone challenges faced by traditional reconfigurable intelligent surface (RIS)-aided covert communication (CC) systems, the joint distance-angle beamforming capability of frequency diverse RIS (FD-RIS) shows…

信息论 · 计算机科学 2025-11-11 Han Xiao , Xiaoyan Hu , Wenjie Wang , Kai-Kit Wong , Kun Yang , Chan-Byoung Chae