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In this paper, we propose to utilize intelligent reflecting surfaces (IRSs) for enhancing the physical layer security of wireless communications systems. In particular, an IRS-assisted secure wireless system is considered, where a…

Information Theory · Computer Science 2020-02-26 Xianghao Yu , Dongfang Xu , Robert Schober

Integrated sensing and communication (ISAC) has become a crucial technology in the development of next-generation wireless communication systems. The integration of communication and sensing functionalities on a unified spectrum and…

Signal Processing · Electrical Eng. & Systems 2026-02-06 Toshiki Matsumine , Hideki Ochiai , Junji Shikata

Intelligent reflecting surfaces (IRS) can improve the physical layer security (PLS) by providing a controllable wireless environment. In this paper, we propose a novel PLS technique with the help of IRS implemented by an intelligent mirror…

Information Theory · Computer Science 2021-02-01 Lei Qian , Xuefen Chi , Linlin Zhao , Anas Chaaban

In this paper, we investigate physical-layer security (PLS) methods for proximity-based group-key establishment and proof of location. Fields of application include secure car-to-car communication, privacy-preserving and secure distance…

Cryptography and Security · Computer Science 2021-09-30 Pascal Zimmer , Roland Weinreich , Christian T. Zenger , Aydin Sezgin , Christof Paar

Reconfigurable intelligent surfaces (RISs) hold significant promise for enhancing physical layer security (PLS). However, conventional RISs are typically modeled using diagonal scattering matrices, capturing only independent reflections…

Signal Processing · Electrical Eng. & Systems 2025-11-20 Weijie Xiong , Jingran Lin , Cunhua Pan , Yilong Zeng , Qiang Li

This paper applies channel sounding measurements to enable physical-layer security coding. The channel measurements were acquired in an indoor environment and used to assess the secrecy capacity as a function of physical location. A variety…

Cryptography and Security · Computer Science 2018-11-19 Benjamin Jensen , Bradford Clark , Dakota Flanary , Kalin Norman , Michael Rice , Willie K. Harrison

This paper investigates simultaneous transmission and reflection reconfigurable intelligent surface (STAR-RIS) aided physical layer security (PLS) in multiple-input multiple-output (MIMO) systems, where the base station (BS) transmits…

Information Theory · Computer Science 2024-04-02 Xiequn Dong , Zesong Fei , Xinyi Wang , Meng Hua , Qingqing Wu

This paper considers a MIMO secure wireless communication system aided by the physical layer security technique of sending artificial noise (AN). To further enhance the system security performance, the advanced intelligent reflecting…

Signal Processing · Electrical Eng. & Systems 2020-09-15 Sheng Hong , Cunhua Pan , Hong Ren , Kezhi Wang , Arumugam Nallanathan

Millimeter-wave (mmWave) communications are highly promising to improve the capacity of modern wireless networks, while the physical layer security (PLS) techniques hold great potential to enhance the critical secrecy performance therein.…

Information Theory · Computer Science 2020-09-07 Yuanyu Zhang , Yulong Shen , Xiaohong Jiang , Shoji Kasahara

Sixth-generation (6G) networks pose substantial security risks because confidential information is transmitted over wireless channels with a broadcast nature, and various attack vectors emerge. Physical layer security (PLS) exploits the…

Networking and Internet Architecture · Computer Science 2023-11-15 Waqas Khalid , M. Atif Ur Rehman , Trinh Van Chien , Zeeshan Kaleem , Howon Lee , Heejung Yu

This paper investigates the physical layer security (PLS) performance of $\alpha$-$\mathcal{F}$ fading channels with pointing errors under passive and active eavesdropping scenarios. Novel analytical expressions are derived for key PLS…

The sixth generation of wireless networks defined several key performance indicators (KPIs) for assessing its networks, mainly in terms of reliability, coverage, and sensing. In this regard, remarkable attention has been paid recently to…

Emerging Technologies · Computer Science 2025-05-09 Waqas Aman , El-Mehdi Illi , Marwa Qaraqe , Saif Al-Kuwari

The integration of sensing and communication enables wireless communication systems to serve environment-aware applications. In this paper, we propose to leverage sensing to enhance physical layer security (PLS) in multiuser communication…

Information Theory · Computer Science 2023-12-27 Dongfang Xu , Yiming Xu , Zhiqiang Wei , Shenghui Song , Derrick Wing Kwan Ng

In this paper, we consider physical layer security provisioning in multi-cell massive multiple-input multiple-output (MIMO) systems. Specifically, we consider secure downlink transmission in a multi-cell massive MIMO system with…

Information Theory · Computer Science 2014-05-29 Jun Zhu , Robert Schober , Vijay K. Bhargava

In this paper, we study the problem of physical layer security in large-scale multiple input multiple output (LS-MIMO) systems. The large number of antenna elements in LS-MIMO system is exploited to enhance transmission security and improve…

Information Theory · Computer Science 2014-07-29 Xiaoming Chen , Chau Yuen , Zhaoyang Zhang

The physical layer authentication (PLA) is a promising technology which can enhance the access security of a massive number of devices in the near future. In this paper, we propose a reconfigurable intelligent surface (RIS)-assisted PLA…

Cryptography and Security · Computer Science 2024-03-08 Ning Gao , Shuchen Meng , Cen Li , Shengguo Meng , Wankai Tang , Shi Jin , Michail Matthaiou

Secure precoding superimposed with artificial noise (AN) is a promising transmission technique to improve security by harnessing the superposition nature of the wireless medium. However, finding a jointly optimal precoding and AN structure…

Information Theory · Computer Science 2022-07-21 Eunsung Choi , Mintaek Oh , Jinseok Choi , Jeonghun Park , Namyoon Lee , Naofal Al-Dhahir

In this paper, we consider the use of artificial noise for secure communications. We propose the notion of practical secrecy as a new design criterion based on the behavior of the eavesdropper's error probability $P_E$, as the…

Information Theory · Computer Science 2013-06-06 Shuiyin Liu , Yi Hong , Emanuele Viterbo

With growing popularity of mobile Internet, providing secure wireless services has become a critical issue. Physical layer security (PHY-security) has been recognized as an effective means to enhance wireless security by exploiting wireless…

Information Theory · Computer Science 2016-11-18 Xiaoming Chen , Caijun Zhong , Chau Yuen , Hsiao-Hwa Chen

Most traditional alarm systems cannot address security threats in a satisfactory manner. To alleviate this problem, we developed a high-confidence cyber-physical alarm system (CPAS), a new kind of alarm systems. This system establishes the…

Distributed, Parallel, and Cluster Computing · Computer Science 2016-11-17 Longhua Ma , Tengkai Yuan , Feng Xia , Ming Xu , Jun Yao , Meng Shao
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