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A secure key distribution protocol protected by light's noise was introduced in 2003 [Phys. Rev. A 68, 052307 (2003)]. That protocol utilized the shot noise of light present in the optical channel (eg., an optical fiber) to restrict…

Cryptography and Security · Computer Science 2016-07-27 Geraldo A. Barbosa

Sixth-Generation (6G) wireless networks aim to support innovative Internet-of-Things (IoT) applications that demand faster and more secure data transmission. While higher Open Systems Interconnection (OSI) layers employ measures like…

Signal Processing · Electrical Eng. & Systems 2025-06-30 Dimitris Kompostiotis , Dimitris Vordonis , Vassilis Paliouras , George C. Alexandropoulos

Passive eavesdropping compromises confidentiality in wireless networks, especially in resource-constrained environments where heavyweight cryptography is impractical. Physical layer security (PLS) exploits channel randomness and spatial…

Cryptography and Security · Computer Science 2026-01-16 Yifan Zhang , Yishan Yang , Riku Jäntti , Zheng Yan , Dusit Niyato , Zhu Han

It is expected that the creation of next-generation wireless networks would result in the availability of high-speed and low-latency connectivity for every part of our life. As a result, it is important that the network is secure. The…

Cryptography and Security · Computer Science 2022-12-08 Ishika Sahni , Araftoz Kaur

Future wireless networks require the ability to actively adjust the wireless environment to meet strict performance indicators. Reconfigurable Intelligent Surface (RIS) technology is gaining attention for its advantages of low power…

Information Theory · Computer Science 2024-10-28 De-Ming Chian , Chao-Kai Wen , Chi-Hung Wu , Fu-Kang Wang , Kai-Kit Wong

As a promising technology, physical layer security (PLS) enhances security by leveraging the physical characteristics of communication channels. However, it commonly takes the legitimate user more effort to secure its data, compared to that…

Information Theory · Computer Science 2025-02-13 Wenwen Chen , Bin Han , Yao Zhu , Anke Schmeink , Hans D. Schotten

In Vehicle-to-Everything (V2X) systems, reliable and secure information exchange plays a pivotal role in road safety and traffic management. Due to the open nature of the wireless medium and the constant or intermittent mobility of…

Information Theory · Computer Science 2023-12-05 Kan Yu , Zhiyong Feng , Dong Li , Jiguo Yu

Physical-layer security (PLS) has the potential to strongly enhance the overall system security as an alternative to or in combination with conventional cryptographic primitives usually implemented at higher network layers. Secret-key…

Signal Processing · Electrical Eng. & Systems 2020-06-23 François Rottenberg , Trung-Hien Nguyen , Jean-Michel Dricot , François Horlin , Jérôme Louveaux

When two or more users in a wireless network transmit simultaneously, their electromagnetic signals are linearly superimposed on the channel. As a result, a receiver that is interested in one of these signals sees the others as unwanted…

Information Theory · Computer Science 2011-03-01 Bobak Nazer , Michael Gastpar

The traditional information security based on cryptosystem is seriously threatened due to the exponential growth of computing capacity. In order to improve for the upper cryptosystem security, the secure transmission at the physical layer…

Signal Processing · Electrical Eng. & Systems 2023-05-30 T. Xu , X. Wu , J. Zhang

We propose a novel attack that compromises the physical layer security of downlink (DL) communications in wireless systems. This technique is based on the transmission of a slowly-varying random symbol by the eavesdropper during its uplink…

Information Theory · Computer Science 2024-10-30 Gonzalo J. Anaya-Lopez , Gerardo Gomez , F. Javier Lopez-Martinez

Strong authentication in an interconnected wireless environment continues to be an important, but sometimes elusive goal. Research in physical-layer authentication using channel features holds promise as a technique to improve network…

Signal Processing · Electrical Eng. & Systems 2020-09-01 Ken St. Germain , Frank Kragh

Wireless Sensor Networks (WSNs) are rapidly emerging as an important new area in wireless and mobile computing research. Applications of WSNs are numerous and growing, and range from indoor deployment scenarios in the home and office to…

Networking and Internet Architecture · Computer Science 2013-01-23 Jaydip Sen

The article discusses the emergence of Wireless Sensor Networks (WSNs) as a groundbreaking technology in data processing and communication. It outlines how WSNs, composed of dispersed autonomous sensors, are utilized to monitor physical and…

Cryptography and Security · Computer Science 2024-04-18 Akinsola Ahmed , Ejiofor Oluomachi , Akinde Abdullah , Njoku Tochukwu

Security is an essential requirement of Industrial Control System (ICS) environments and its underlying communication infrastructure. Especially the lowest communication level within Supervisory Control and Data Acquisition (SCADA) systems…

Cryptography and Security · Computer Science 2022-09-07 Thomas R. Doebbert , Florian Fischer , Dominik Merli , Gerd Scholl

A main distinguishing feature of a wireless network compared with a wired network is its broadcast nature, in which the signal transmitted by a node may reach several other nodes, and a node may receive signals from several other nodes,…

Networking and Internet Architecture · Computer Science 2009-10-15 Zhang Shengli , Soung Chang Liew

The extensive deployment of Low Earth Orbit (LEO) satellites introduces significant security challenges for communication security issues in Internet of Things (IoT) networks. With the rising number of satellites potentially acting as…

Networking and Internet Architecture · Computer Science 2024-07-08 Anna Talgat , Ruibo Wang , Mustafa A. Kishk , Mohamed-Slim Alouini

The evolution of wireless networks is driving new paradigms for consideration in upcoming generations. To this end, the 6G anticipates the development of several data-rate-hungry applications, in addition to a forecast growth in…

Information Theory · Computer Science 2026-04-07 Elmehdi Illi , Marwa Qaraqe

Precise channel state knowledge is crucial in future wireless communication systems, which drives the need for accurate channel prediction without additional pilot overhead. While machine-learning (ML) methods for channel prediction show…

Information Theory · Computer Science 2025-02-26 Hwanjin Kim , Junil Choi , David J. Love

This paper provides a comprehensive survey on recent advances in deep learning (DL) techniques for the channel coding problems. Inspired by the recent successes of DL in a variety of research domains, its applications to the physical layer…

Information Theory · Computer Science 2026-02-06 Toshiki Matsumine , Hideki Ochiai