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Physical layer security (PLS) is seen as the means to enhance physical layer trustworthiness in 6G. This work provides a proof-of-concept for one of the most mature PLS technologies, i.e., secret key generation (SKG) from wireless fading…

Cryptography and Security · Computer Science 2023-05-19 Amitha Mayya , Miroslav Mitev , Arsenia Chorti , Gerhard Fettweis

In the coming years, 6G will revolutionize the world with a large amount of bandwidth, high data rates, and extensive coverage in remote and rural areas. These goals can only be achieved by integrating terrestrial networks with…

Signal Processing · Electrical Eng. & Systems 2023-02-16 R. Singh , I. Ahmad , J. Huusko

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

Satellite communications emerged as a promising extension to terrestrial networks in future 6G network research due to their extensive coverage in remote areas and ability to support the increasing traffic rate and heterogeneous networks.…

Signal Processing · Electrical Eng. & Systems 2023-01-11 Nora Abdelsalam , Saif Al-Kuwari , Aiman Erbad

This paper presents a comprehensive physical layer security (PLS) framework for fluid antenna system (FAS)-aided short-packet communications under the variable block-correlation model (VBCM). We consider a downlink wiretap scenario in which…

Signal Processing · Electrical Eng. & Systems 2026-03-19 Jianchao Zheng , Tuo Wu , Kai-Kit Wong , Baiyang Liu , Runyu Pan , Maged Elkashlan , Kin-Fai Tong , Sumei Sun

A common approach for introducing security at the physical layer is to rely on the channel variations of the wireless environment. This type of approach is not always suitable for wireless networks where the channel remains static for most…

Cryptography and Security · Computer Science 2011-09-02 Mohammad Iftekhar Husain , Suyash Mahant , Ramalingam Sridhar

In this paper, we investigate the sensing-aided physical layer security (PLS) towards Integrated Sensing and Communication (ISAC) systems. A well-known limitation of PLS is the need to have information about potential eavesdroppers (Eves).…

Signal Processing · Electrical Eng. & Systems 2022-10-18 Nanchi Su , Fan Liu , Christos Masouros

Indoor visible light communication (VLC) is considered secure against attackers outside the confined area where the light propagates, but it is still susceptible to interception from inside the coverage area. A new technology, intelligent…

Information Theory · Computer Science 2025-02-11 Rashid Iqbal , Mauro Biagi , Ahmed Zoha , Muhammad Ali Imran , Hanaa Abumarshoud

Communication security could be enhanced at physical layer but at the cost of complex algorithms and redundant hardware, which would render traditional physical layer security (PLS) techniques unsuitable for use with resource-constrained…

Signal Processing · Electrical Eng. & Systems 2021-12-22 Tongyang Xu

Physical layer security (PLS) has received a growing interest from the research community for its ability to safeguard data confidentiality without relying on key distribution or encryption/decryption. However, the evolution towards the 5G…

Securing wireless communication, being inherently vulnerable to eavesdropping and jamming attacks, becomes more challenging in resource-constrained networks like Internet-of-Things. Towards this, physical layer security (PLS) has gained…

Information Theory · Computer Science 2020-02-28 Bhawna Ahuja , Deepak Mishra , Ranjan Bose

This paper studies physical-layer secure transmissions from a transmitter to a legitimate receiver against an eavesdropper over slow fading channels, taking into account the impact of finite blocklength secrecy coding. A comprehensive…

Information Theory · Computer Science 2020-02-11 Tong-Xing Zheng , Hui-Ming Wang , Derrick Wing Kwan Ng , Jinhong Yuan

We explore the additional security obtained by noise at the physical layer in a wiretap channel model setting. Security enhancements at the physical layer have been proposed recently using a secrecy metric based on the degrees of freedom…

Cryptography and Security · Computer Science 2015-09-24 W. K. Harrison , J. Almeida , S. W. McLaughlin , J. Barros

In this paper, we consider the physical layer security (PLS) problem for integrated sensing and communication (ISAC) systems in the presence of hybrid-colluding eavesdroppers, where an active eavesdropper (AE) and a passive eavesdropper…

Systems and Control · Electrical Eng. & Systems 2025-02-10 Meiding Liu , Zhengchun Zhou , Qiao Shi , Guyue Li , Zilong Liu , Pingzhi Fan , Inkyu Lee

Caching popular contents is a promising way to offload the mobile data traffic in wireless networks, but so far the potential advantage of caching in improving physical layer security (PLS) is rarely considered. In this paper, we contribute…

Information Theory · Computer Science 2017-11-15 Wu Zhao , Zhiyong Chen , Kuikui Li , Bin Xia

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

Physical layer security is an emerging technique to improve the wireless communication security, which is widely regarded as a complement to cryptographic technologies. To design physical layer security techniques under practical scenarios,…

Information Theory · Computer Science 2013-07-22 Biao He , Xiangyun Zhou , Thushara D. Abhayapala

Wireless data communications are always facing the risk of eavesdropping and interception. Conventional protection solutions which are based on encryption may not always be practical as is the case for wireless IoT networks or may soon…

Networking and Internet Architecture · Computer Science 2024-03-18 Sayed Amir Hoseini , Faycal Bouhafs , Neda Aboutorab , Parastoo Sadeghi , Frank den Hartog

Physical layer security offers an efficient means to decrease the risk of confidential information leakage through wiretap links. In this paper, we address the physical-layer security in a cooperative wireless subnetwork that includes a…

Networking and Internet Architecture · Computer Science 2019-10-21 Saeed Vahidian , Sajad Hatamnia , Benoit Champagne

Physical layer security has been recently recognized as a promising new design paradigm to provide security in wireless networks. In addition to the existing conventional cryptographic methods, physical layer security exploits the dynamics…