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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…

Information Theory · Computer Science 2024-03-25 Wei Shi , Jindan Xu , Wei Xu , Chau Yuen , A. Lee Swindlehurst , Chunming Zhao

In this paper, we propose a physical layer security (PLS) framework for an intelligent reflecting surface (IRS)-assisted integrated sensing and semantic communication (ISASC) system, where a multi-antenna dual-functional semantic base…

Signal Processing · Electrical Eng. & Systems 2025-07-21 Hamid Amiriara , Mahtab Mirmohseni , Ahmed Elzanaty , Yi Ma , Rahim Tafazolli

In this article, physical layer security (PLS) in an intelligent reflecting surface (IRS) assisted multiple-input multiple-output multiple antenna eavesdropper (MIMOME) system is studied. In particular, we consider a practical scenario…

Information Theory · Computer Science 2023-04-05 Chi Zhang , Yiliang Liu , Hsiao-Hwa Chen

In this paper, we examine the physical-layer security for a spectrum sharing system consisting of multiple source-destination pairs, which dynamically access their shared spectrum for data transmissions in the presence of an eavesdropper.…

Information Theory · Computer Science 2016-12-23 Yulong Zou

Quantum communication protocols can be designed to detect eavesdropping attacks, something that classical technologies are unable to do since classical information can be replicated in a non-destructive manner. Eavesdropping detection is,…

Quantum Physics · Physics 2025-12-19 Santanu Majhi , Debajyoti Bera

The secrecy performance in both near-field and far-field communications is analyzed using two fundamental metrics: the secrecy capacity under a power constraint and the minimum power requirement to achieve a specified secrecy rate target.…

Information Theory · Computer Science 2025-04-11 Boqun Zhao , Chongjun Ouyang , Xingqi Zhang , Yuanwei Liu

This work studies the achievable secure rate per source-destination pair in wireless networks. First, a path loss model is considered, where the legitimate and eavesdropper nodes are assumed to be placed according to Poisson point processes…

Information Theory · Computer Science 2010-04-13 O. Ozan Koyluoglu , C. Emre Koksal , Hesham El Gamal

Intelligent reflecting surfaces (IRSs) have several prominent advantages, including improving the level of wireless communication security and privacy. In this work, we focus on the latter aspect and introduce a strategy to counteract the…

Networking and Internet Architecture · Computer Science 2024-02-23 Francesco Malandrino , Alessandro Nordio , Carla Fabiana Chiasserini

This paper considers the transmission of confidential messages over noisy wireless ad hoc networks, where both background noise and interference from concurrent transmitters affect the received signals. For the random networks where the…

Information Theory · Computer Science 2014-01-24 Jinxiao Zhu , Yin Chen , Yulong Shen , Osamu Takahashi , Xiaohong Jiang , Norio Shiratori

Reconfigurable intelligent surface (RIS)-aided wireless communications have drawn significant attention recently. We study the physical layer security of the downlink RIS-aided transmission framework for randomly located users in the…

Information Theory · Computer Science 2021-04-09 Jiayi Zhang , Hongyang Du , Qiang Sun , Bo Ai , Derrick Wing Kwan Ng

With the development of sixth-generation (6G) wireless communication networks, the security challenges are becoming increasingly prominent, especially for mobile users (MUs). As a promising solution, physical layer security (PLS) technology…

Signal Processing · Electrical Eng. & Systems 2026-02-17 Wenxuan Ma , Bin Lin , Hongyang Pan , Geng Sun , Enyu Shi , Jiancheng An , Chau Yuen

In this paper, we investigate the secrecy performance of stochastic MIMO wireless networks over small-scale $\alpha$-$\mu$ fading channels, where both the legitimate receivers and eavesdroppers are distributed with two independent…

Information Theory · Computer Science 2018-10-03 Long Kong , Satyanarayana Vuppala , Georges Kaddoum

This paper investigates the downlink (DL) physical layer security (PLS) in a near-field (NF) extra-large multiple-input multiple-output MIMO (XL-MIMO) system. To enhance the secrecy rate (SR), null-space artificial noise (AN) is transmitted…

Information Theory · Computer Science 2025-03-19 Xiangjun Ma , Ali Arshad Nasir , Daniel Benevides da Costa

In this article, a joint security and latency analysis of short packet-based low-altitude communications when the eavesdropper is close to the receiver is addressed. To reveal the impacts of the signal-to-noise ratio (SNR) and block-length…

Signal Processing · Electrical Eng. & Systems 2025-04-23 Zeyin Wang , Di Zhang , Shaobo Jia , Lulu Song , Yanqun Tang

In this work, we investigate the physical layer security (PLS) of ambient backscatter communication non-orthogonal multiple access (AmBC-NOMA) networks where non-colluding eavesdroppers (Eves) are randomly distributed. In the proposed…

Systems and Control · Electrical Eng. & Systems 2024-12-10 Xinyue Pei , Xingwei Wang , Min Huang , Yingyang Chen , Xiaofan Li , Theodoros A. Tsiftsis

The rapid evolution of communication technologies and the emergence of sixth-generation (6G) networks have introduced unprecedented opportunities for ultra-reliable, low-latency, and energy-efficient communication. However, the integration…

Information Theory · Computer Science 2025-01-17 Farshad Rostami Ghadi , Masoud Kaveh , Kai-Kit Wong , Diego Martin , Riku Jantti , Zheng Yan

This paper investigates the impact of physical layer secrecy on the performance of a unified non-orthogonal multiple access (NOMA) framework, where both external and internal eavesdropping scenarios are examined. The spatial locations of…

Information Theory · Computer Science 2019-04-03 Xinwei Yue , Yuanwei Liu , Yuanyuan Yao , Xuehua Li , Rongke Liu , Arumugam Nallanathan

In this paper, we consider the physical layer security of an RIS-assisted multiple-antenna communication system with randomly located eavesdroppers. The exact distributions of the received signal-to-noise-ratios (SNRs) at the legitimate…

Information Theory · Computer Science 2024-03-25 Wei Shi , Jindan Xu , Wei Xu , Chau Yuen , A. Lee Swindlehurst , Xiaohu You , Chunming Zhao

This paper considers secure energy-efficient routing in the presence of multiple passive eavesdroppers. Previous work in this area has considered secure routing assuming probabilistic or exact knowledge of the location and…

Networking and Internet Architecture · Computer Science 2017-03-16 Azadeh Sheikholeslami , Majid Ghaderi , Hossein Pishro-Nik , Dennis Goeckel

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