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Integrated Sensing and Communication (ISAC) is a crucial component of future wireless networks, enabling seamless integration of Communication and Sensing (C\&S) functionalities. However, ensuring security in ISAC systems remains a…

信号处理 · 电气工程与系统科学 2025-03-25 Yongxiao Li , Feroz Khan , Manzoor Ahmed , Aized Amin Soofi , Wali Ullah Khan , Chandan Kumar Sheemar , Muhammad Asif , Zhu Han

This paper studies an extremely large-scale reconfigurable intelligent surface (XL-RIS)-aided near-field physical layer security (PLS) communication system, aiming to maximize the secrecy rate by jointly optimizing precoding vector at the…

信息论 · 计算机科学 2026-03-09 Xiaotong Xu , Qian Zhang , Yunxiao Li , Xuejun Cheng , Meihui Liu , Ju Liu

Exploiting short packets for communications is one of the key technologies for realizing emerging application scenarios such as massive machine type communications (mMTC) and ultra-reliable low-latency communications (uRLLC). In this paper,…

信息论 · 计算机科学 2021-05-17 Chen Feng , Hui-Ming Wang , H. Vincent Poor

A robust full-space physical layer security (PLS) transmission scheme is proposed in this paper considering the full-space wiretapping challenge of wireless networks supported by simultaneous transmitting and reflecting reconfigurable…

信息论 · 计算机科学 2025-03-18 Han Xiao , Xiaoyan Hu , Ang Li , Wenjie Wang , Kun Yang

The increasing demand for Internet of Things (IoT) applications has accelerated the need for robust resource allocation in sixth-generation (6G) networks. In this paper, we propose a reconfigurable intelligent surface (RIS)-assisted upper…

信号处理 · 电气工程与系统科学 2026-02-03 Muddasir Rahim , Soumaya Cherkaoui

Reconfigurable intelligent surfaces (RISs) have recently attracted interest for non-terrestrial networks (NTNs), especially for improving satellite communication performance. However, RIS-assisted urban NTN designs that jointly support…

信号处理 · 电气工程与系统科学 2026-04-22 Muhammad Khalil , Ke Wang , Jinho Choi

Wireless communications empowered by Reconfigurable Intelligent (meta)Surfaces (RISs) are recently gaining remarkable research attention due to the increased system design flexibility offered by RISs for diverse functionalities. In this…

信息论 · 计算机科学 2020-11-03 George C. Alexandropoulos , Konstantinos Katsanos , Miaowen Wen , Daniel B. da Costa

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

Communication with unmanned aerial vehicles (UAVs) in current terrestrial networks suffers from poor signal strength due to the down-tilt of the access points (APs) that are optimized to serve ground users ends (GUEs). To solve this, one…

信号处理 · 电气工程与系统科学 2022-09-23 Bayan Al-Nahhas , Anas Chaaban , Md. Jahangir Hossain

Incorporating rate splitting multiple access (RSMA) into integrated sensing and communication (ISAC) presents a significant security challenge, particularly in scenarios where the location of a potential eavesdropper (Eve) is unidentified.…

信号处理 · 电气工程与系统科学 2024-07-23 A. Abdelaziz Salem , Saeed Abdallah , Mohamed Saad , Khawla Alnajjar , Mahmoud A. Albreem

Reconfigurable intelligent surface (RIS) has emerged as a pivotal technology for enhancing wireless networks. Compared to terrestrial RIS deployed on building facades, aerial RIS (ARIS) mounted on quadrotor unmanned aerial vehicle (UAV)…

信号处理 · 电气工程与系统科学 2025-10-30 Bin Li , Dongdong Yang , Lei Liu , Dusit Niyato

Emerging as a cornerstone for next-generation wireless networks, integrated sensing and communication (ISAC) systems demand innovative solutions to balance spectral efficiency and sensing accuracy. In this paper, we propose a coordinated…

信号处理 · 电气工程与系统科学 2025-06-02 Chunjie Wang , Xuhui Zhang , Wenchao Liu , Jinke Ren , Huijun Xing , Shuqiang Wang , Yanyan Shen

This paper investigates an integrated sensing and communication system where the base station serves multiple downlink users, while employing a passive reconfigurable intelligent surface to detect small, noncooperative airborne targets. We…

信号处理 · 电气工程与系统科学 2025-05-26 Georgios Mylonopoulos , Luca Venturino , Emanuele Grossi , Stefano Buzzi , Ciro D'Elia

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

Reconfigurable intelligent surfaces (RISs) achieve high passive beamforming gains for signal enhancement or interference nulling by dynamically adjusting their reflection coefficients. Their employment is particularly appealing for…

信息论 · 计算机科学 2022-12-01 Ming-Min Zhao , Kaidi Xu , Yunlong Cai , Yong Niu , Lajos Hanzo

This paper studies the problem of securing task offloading transmissions from ground users against ground eavesdropping threats. Our study introduces a reconfigurable intelligent surface (RIS)-aided unmanned aerial vehicle (UAV)-mobile edge…

密码学与安全 · 计算机科学 2025-05-19 Aly Sabri Abdalla , Vuk Marojevic

Reconfigurable intelligent surface (RIS) emerges as an efficient and promising technology for the next wireless generation networks and has attracted a lot of attention owing to the capability of extending wireless coverage by reflecting…

信息论 · 计算机科学 2023-10-20 Changzhu Liu , Ruisi He , Yong Niu , Zhu Han , Bo Ai , Meilin Gao , Zhangfeng Ma , Gongpu Wang , Zhangdui Zhong

This paper proposes a novel approach to improve the performance of a heterogeneous network (HetNet) supported by dual connectivity (DC) by adopting multiple unmanned aerial vehicles (UAVs) as passive relays that carry reconfigurable…

Reconfigurable intelligent surface (RIS)-aided near-field communications is investigated. First, the necessity of investigating RIS-aided near-field communications and the advantages brought about by the unique spherical-wave-based…

信息论 · 计算机科学 2024-03-05 Xidong Mu , Jiaqi Xu , Yuanwei Liu , Lajos Hanzo