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The Low-Altitude Economy Networking (LAENet) is emerging as a transformative paradigm that enables an integrated and sophisticated communication infrastructure to support aerial vehicles in carrying out a wide range of economic activities…

Cryptography and Security · Computer Science 2025-04-15 Lingyi Cai , Jiacheng Wang , Ruichen Zhang , Yu Zhang , Tao Jiang , Dusit Niyato , Xianbin Wang , Abbas Jamalipour , Xuemin Shen

Physical layer security is a field of study that continues to gain importance over time. It encompasses a range of algorithms applicable to various aspects of communication systems. While research in the physical layer has predominantly…

Signal Processing · Electrical Eng. & Systems 2023-07-17 Pol Henarejos , Ana I. Pérez-Neira

Physical layer (PHY) steganography conceals secrets by making subtle modifications to transmitted radio waveforms, which can be applied to establish covert communication systems. Given the widespread deployment of Wi-Fi infrastructures,…

Signal Processing · Electrical Eng. & Systems 2026-04-23 Jiamu Guo , Hailang Jia , Guanxiong Shen , Junqing Zhang , Linning Peng , Liquan Chen

Next-generation wireless networks are getting significant attention because they promise 10-factor enhancement in mobile broadband along with the potential to enable new heterogeneous services. Services include massive machine type…

Systems and Control · Electrical Eng. & Systems 2020-12-03 Neelam Singh , S. V. Sai Santosh , Sumit J. Darak

Spoken language understanding (SLU), one of the key enabling technologies for human-computer interaction in IoT devices, provides an easy-to-use user interface. Human speech can contain a lot of user-sensitive information, such as gender,…

Cryptography and Security · Computer Science 2024-03-26 Yinggui Wang , Wei Huang , Le Yang

In this work, we focus on the classical optical channel having Poissonian statistical behavior and propose a novel secrecy coding-based physical layer protocol. Our protocol is different but complementary to both (computationally secure)…

Cryptography and Security · Computer Science 2022-04-26 Masahito Hayashi , Angeles Vazquez-Castro

With the emergence of low-cost smart and connected IoT devices, the area of cyber-physical security is becoming increasingly important. Past research has demonstrated new threat vectors targeting the transition process between the cyber and…

Cryptography and Security · Computer Science 2021-05-28 Zhiyuan Yu , Zack Kaplan , Qiben Yan , Ning Zhang

Providing secure communications over the physical layer with the objective of achieving perfect secrecy without requiring a secret key has been receiving growing attention within the past decade. The vast majority of the existing studies in…

Information Theory · Computer Science 2018-08-10 Sina Rezaei Aghdam , Alireza Nooraiepour , Tolga M. Duman

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

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

Driven by the ever-increasing requirements of ultra-high spectral efficiency, ultra-low latency, and massive connectivity, the forefront of wireless research calls for the design of advanced next generation multiple access schemes to…

Information Theory · Computer Science 2024-05-22 Lu Lv , Dongyang Xu , Rose Qingyang Hu , Yinghui Ye , Long Yang , Xianfu Lei , Xianbin Wang , Dong In Kim , Arumugam Nallanathan

Current low-latency anonymity systems use complex overlay networks to conceal a user's IP address, introducing significant latency and network efficiency penalties compared to normal Internet usage. Rather than obfuscating network identity…

Cryptography and Security · Computer Science 2014-07-15 Jody Sankey , Matthew Wright

Visual localization is the task of estimating the camera pose of an image relative to a scene representation. In practice, visual localization systems are often cloud-based. Naturally, this raises privacy concerns in terms of revealing…

Computer Vision and Pattern Recognition · Computer Science 2026-04-15 Vojtech Panek , Patrik Beliansky , Zuzana Kukelova , Torsten Sattler

As healthcare systems become increasingly interconnected, ensuring secure and continuous device authentication in health information exchange (HIE) networks is critical to safeguarding patient data and clinical operations. In this context,…

Cryptography and Security · Computer Science 2026-04-30 Khalid M. Ezzat , Muhammad El-Saba , Mahmoud A. Shawky

Various techniques need to be combined to realize anonymously authenticated communication. Cryptographic tools enable anonymous user authentication while anonymous communication protocols hide users' IP addresses from service providers. One…

Networking and Internet Architecture · Computer Science 2014-05-09 Keita Emura , Akira Kanaoka , Satoshi Ohta , Takeshi Takahashi

Physical Layer Security (PLS) is an emerging concept in the field of secrecy for wireless communications that can be used alongside cryptography to prevent unauthorized devices from eavesdropping a legitimate transmission. It offers low…

Signal Processing · Electrical Eng. & Systems 2025-04-24 Leonardo Barbosa da Silva , Evelio Martín Garcia Fernández , Ândrei Camponogara

This letter focuses on the physical layer security over two-user multiple-input multiple-output (MIMO) non-orthogonal multiple access (NOMA) networks. A linear precoding technique is designed to ensure the confidentiality of the message of…

Information Theory · Computer Science 2020-08-14 Yue Qi , Mojtaba Vaezi

We propose a comprehensive framework exploiting the polarization sensitive array (PLA) to improve the physical layer security of wireless communications. More specifically, the polarization difference among signals is utilized to improve…

Information Theory · Computer Science 2017-10-03 Shiqi Gong , Chengwen Xing , Sheng Chen , Zesong Fei

In this paper, we study physical layer security for the downlink of cellular networks, where the confidential messages transmitted to each mobile user can be eavesdropped by both (i) the other users in the same cell and (ii) the users in…

Information Theory · Computer Science 2016-11-15 Giovanni Geraci , Harpreet S. Dhillon , Jeffrey G. Andrews , Jinhong Yuan , Iain B. Collings

Physical layer network coding (PNC) has been proposed for next generation networks. In this contribution, we investigate PNC schemes with embedded perfect secrecy by exploiting structured interference in relay networks with two users and a…

Information Theory · Computer Science 2016-02-02 David Karpuk , Arsenia Chorti