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Hybrid reconfigurable intelligent surfaces (HRISs) constitute an emerging paradigm of metasurfaces that empowers the concept of smart wireless environments, inherently supporting simultaneously communications and sensing. Very recently,…

信号处理 · 电气工程与系统科学 2025-04-30 Ioannis Gavras , George C. Alexandropoulos

Aiming at providing wireless communication systems with environment-perceptive capacity, emerging integrated sensing and communication (ISAC) technologies face multiple difficulties, especially in balancing the performance trade-off between…

信息论 · 计算机科学 2023-07-18 Xin Zhao , Heng Liu , Shiqi Gong , Xin Ju , Chengwen Xing , Nan Zhao

In this paper, an intelligent reflecting surface (IRS) is leveraged to enhance the physical layer security of an integrated sensing and communication (ISAC) system in which the IRS is deployed to not only assist the downlink communication…

信息论 · 计算机科学 2022-07-20 Meng Hua , Qingqing Wu , Wen Chen , Octavia A. Dobre , A. Lee Swindlehurst

This paper investigates the secure transmission in a simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) assisted uplink non-orthogonal multiple access system, where the legitimate users send…

信息论 · 计算机科学 2021-11-05 Zheng Zhang , Jian Chen , Yuanwei Liu , Qingqing Wu , Bingtao He , Long Yang

Active reconfigurable intelligent surfaces (RISs) can improve the performance of integrated sensing and communication (ISAC), and therefore enable simultaneous data transmission and target sensing. However, when the line-of-sight (LoS) link…

信号处理 · 电气工程与系统科学 2024-10-17 Ahmed Magbool , Vaibhav Kumar , Mark F. Flanagan

Due to the broadcast nature of wireless communications, physical layer security has always been a fundamental but challenging problem. Recent advance of Intelligent Reflecting Surface (IRS) introduces a new dimension for secure…

信号处理 · 电气工程与系统科学 2020-10-29 Jian Li , Lan Zhang , Kaiping Xue , Yuguang Fang

Reconfigurable intelligent surface (RIS) is a promising technology for future wireless communication systems. However, the conventional RIS can only reflect the incident signal. Hence, it provides a limited coverage, as compared to a…

信号处理 · 电气工程与系统科学 2025-04-29 Sadaf Syed , Wolfgang Utschick , Michael Joham

Intelligent reflecting surfaces (IRSs) enable multiple-input multiple-output (MIMO) transmitters to modify the communication channels between the transmitters and receivers. In the presence of eavesdropping terminals, this degree of freedom…

信息论 · 计算机科学 2022-02-03 Saba Asaad , Yifei Wu , Ali Bereyhi , Ralf R. Müller , Rafael F. Schaefer , H. Vincent Poor

The development of sixth-generation (6G) communication technologies is confronted with the significant challenge of spectrum resource shortage. To alleviate this issue, we propose a novel simultaneously transmitting and reflecting…

信号处理 · 电气工程与系统科学 2024-12-03 Haochen Li , Yuanwei Liu , Xidong Mu , Yue Chen , Zhiwen Pan , Xiaohu You

This study investigates a robust reconfigurable intelligent surface (RIS)-assisted multiple-input multiple-output (MIMO) system for secure wireless communication, in which a multi-antenna transmitter (Alice) sends confidential messages to a…

信号处理 · 电气工程与系统科学 2026-02-20 Rakesh Ranjan , Ahmad Sirojuddin , Manjesh K. Hanawal , Himanshu B. Mishra , Wan-Jen Huang ID

Satellite communication is envisioned as a key enabler of future 6G networks, yet its wide coverage with high link attenuation poses significant challenges for physical layer security. In this paper, we investigate secure multi-beam,…

信息论 · 计算机科学 2025-08-29 Zhaole Wang , Naijin Liu , Xiao Tang , Shuai Yuan , Chenxi Wang , Zhi Zhai , Qinghe Du , Jinxin Liu

This paper studies a secure cell-free integrated sensing and communication (ISAC) system, in which multiple ISAC transmitters collaboratively send confidential information to multiple communication users (CUs) and concurrently conduct…

信息论 · 计算机科学 2023-12-08 Zixiang Ren , Jie Xu , Ling Qiu , Derrick Wing Kwan Ng

This paper considers a hybrid reconfigurable intelligent surface (RIS) assisted integrated sensing and communication (ISAC) system, where each RIS element can flexibly switch between the active and passive modes. Subject to the…

信息论 · 计算机科学 2024-12-06 Yingbin Lin , Feng Wang , Xiao Zhang , Guojun Han , Vincent K. N. Lau

This study explores the synergy between rate-splitting multiple access (RSMA) and simultaneous transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) as a unified framework to enable ubiquitous, intelligent, and resilient…

信号处理 · 电气工程与系统科学 2025-10-21 Muhammad Asif , Asim Ihsan , Zhu Shoujin , Ali Ranjha , Xingwang Li , Khaled M. Rabie , Symeon Chatzinotas

Low peak-to-average power ratio (PAPR) transmission is an important and favorable requirement prevalent in radar and communication systems, especially in transmission links integrated with high power amplifiers. Meanwhile, motivated by the…

信号处理 · 电气工程与系统科学 2025-04-11 Jinlong Wu , Lixin Li , Wensheng Lin , Wei Liang , Decan Zhao , Zhu Han

In this paper, sensing-assisted secure communication in a multi-user multi-eavesdropper integrated sensing and communication (ISAC) system is investigated. Confidential communication signals and dedicated sensing signals are jointly…

信号处理 · 电气工程与系统科学 2025-10-07 Fanghao Xia , Zesong Fei , Xinyi Wang , Nanchi Su , Zhaolin Wang , Yuanwei Liu , Jie Xu

This paper investigates the problem of increasing the security at the physical layer of a Millimeter Wave (mmWave) network equipped with several Intelligent Reflecting Surfaces (IRSs). In this network, multiple IRSs help the Base Station…

信息论 · 计算机科学 2021-10-07 Anahid Rafieifar , S. Mohammad Razavizadeh

Drawing inspiration from the advantages of intelligent reflecting surfaces (IRS) in wireless networks,this paper presents a novel design for intelligent omni surface (IOS) enabled integrated sensing and communications (ISAC). By harnessing…

信号处理 · 电气工程与系统科学 2023-07-14 Ziheng Zhang , Wen Chen , Qingqing Wu , Zhendong Li , Xusheng Zhu , Jinhong Yuan

This letter proposes an active reconfigurable intelligent surface (ARIS) assisted rate-splitting multiple access (RSMA) integrated sensing and communication (ISAC) system to overcome the fairness bottleneck in multi-target sensing under…

信号处理 · 电气工程与系统科学 2026-02-13 Xin Jin , Tiejun Lv , Yashuai Cao , Jie Zeng , Mugen Peng

This paper studies a downlink secure integrated sensing and communication (ISAC) system, in which a multi-antenna base station (BS) transmits confidential messages to a single-antenna communication user (CU) while performing sensing on…

信息论 · 计算机科学 2022-07-29 Zixiang Ren , Ling Qiu , Jie Xu , Derrick Wing Kwan Ng