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This paper contributes to the challenging field of security for wireless sensor networks by introducing a key agreement scheme in which sensor nodes create secure radio connections with their neighbours depending on the aid of third…

Cryptography and Security · Computer Science 2013-09-11 Saleh Almowuena

In wireless sensor networks, the $q$-composite key predistribution scheme is a widely recognized way to secure communications. Although connectivity properties of secure sensor networks with the $q$-composite scheme have been studied in the…

Cryptography and Security · Computer Science 2015-08-07 Jun Zhao , Osman Yağan , Virgil Gligor

Pinching-antenna systems have recently gained significant attention as a novel reconfigurable-antenna technology due to its exceptional capability of mitigating signal-propagation path loss. In this letter, we investigate the secrecy…

Signal Processing · Electrical Eng. & Systems 2025-09-23 Nianzu Li , Weidong Mei , Lipeng Zhu , Peiran Wu , Boyu Ning

Physical-layer security is emerging as a promising paradigm of securing wireless communications against eavesdropping between legitimate users, when the main link spanning from source to destination has better propagation conditions than…

Information Theory · Computer Science 2016-11-17 Yulong Zou , Xianbin Wang , Weiming Shen , Lajos Hanzo

This work considers secure transmission protocol for flexible load-balance control in two-hop relay wireless networks without the information of both eavesdropper channels and locations. The available secure transmission protocols via relay…

Cryptography and Security · Computer Science 2013-01-10 Yulong Shen , Xiaohong Jiang , Jianfeng Ma

An absolutely secure, fast, inexpensive, robust, maintenance-free and low-power- consumption communication is proposed. The states of the information bit are represented by two resistance values. The sender and the receiver have such…

Classical Physics · Physics 2008-04-23 Laszlo B. Kish

The role of multiple antennas for secure communication is investigated within the framework of Wyner's wiretap channel. We characterize the secrecy capacity in terms of generalized eigenvalues when the sender and eavesdropper have multiple…

Information Theory · Computer Science 2007-08-31 Ashish Khisti , Gregory Wornell

We present a comprehensive analysis on connectivity and resilience of secure sensor networks under the widely studied q-composite key predistribution scheme. For network connectivity which ensures that any two sensors can find a path in…

Information Theory · Computer Science 2019-11-05 Jun Zhao

In this work, a class of information theoretic secrecy problems is addressed where the eavesdropper channel states are completely unknown to the legitimate parties. In particular, MIMO wiretap channel models are considered where the channel…

Information Theory · Computer Science 2010-07-28 Xiang He , Aylin Yener

The stabilizability of wireless networked control systems (WNCSs) is a deterministic binary valued parameter proven to hold if the communication data rate is higher than the sum of the logarithm of unstable eigenvalues of the open-loop…

Networking and Internet Architecture · Computer Science 2025-01-10 Zeinab Askari Donbeh , Mehdi Rasti , Shiva Kazemi Taskooh , Mehdi Monemi

Interdisciplinary application fields, such as automotive, industrial applications or field robotics show an increasing need for reliable and resilient wireless communication even under high load conditions. These mission-critical…

Networking and Internet Architecture · Computer Science 2021-07-22 Christian Arendt , Manuel Patchou , Stefan Böcker , Janis Tiemann , Christian Wietfeld

Wireless communication is susceptible to eavesdropping attacks because of its broadcast nature. This paper illustrates how interference can be used to counter eavesdropping and assist secrecy. In particular, a wire-tap channel with a…

Information Theory · Computer Science 2016-11-18 Xiaojun Tang , Ruoheng Liu , Predrag Spasojevic , H. Vincent Poor

This paper establishes the fundamental limits of a multi-access system where multiple users communicate to a legitimate receiver in presence of an external warden. Only a specific subset of the users, called covert users, needs their…

Information Theory · Computer Science 2024-08-26 Abdelaziz Bounhar , Mireille Sarkiss , Michèle Wigger

The amount of sensitive data, which is transmitted wirelessly will increase with future technologies. This raises many questions about secure data transmission. Besides cryptography, information-theoretic security gained increasing…

Information Theory · Computer Science 2021-01-18 Karl-Ludwig Besser , Eduard A. Jorswieck

This paper develops a novel framework for sharing secret keys using existing Automatic Repeat reQuest (ARQ) protocols. Our approach exploits the multi-path nature of the wireless environment to hide the key from passive eavesdroppers. The…

Information Theory · Computer Science 2008-10-09 Mohamed Abdel Ghany , Ahmed Sultan , Hesham El Gamal

Wireless communications and sensing (WCS) establish the backbone of modern information exchange and environment perception. Typical applications range from mobile networks and the Internet of Things to radar and sensor grids. Despite…

Signal Processing · Electrical Eng. & Systems 2025-08-05 Shixiong Wang , Wei Dai , Jianyong Sun , Zongben Xu , Geoffrey Ye Li

To improve national security, government agencies have long been committed to enforcing powerful surveillance measures on suspicious individuals or communications. In this paper, we consider a wireless legitimate surveillance system, where…

Information Theory · Computer Science 2017-05-01 Caijun Zhong , Xin Jiang , Fengzhong Qu , Zhaoyang Zhang

Many applications of wireless sensor networks (WSNs) require deploying sensors in hostile environments, where an adversary may eavesdrop communications. To secure communications in WSNs, the q-composite key predistribution scheme has been…

Information Theory · Computer Science 2019-11-05 Jun Zhao

Wireless systems are of paramount importance for providing ubiquitous data transmission for smart cities. However, due to the broadcasting and openness of wireless channels, such systems face potential security challenges. UAV-assisted…

Cryptography and Security · Computer Science 2024-03-15 Chan Gao , Linying Tian , Dong Zheng

Recently, physical layer security based approaches have drawn considerable attentions and are envisaged to provide secure communications in the wireless networks. However, most existing literatures only focus on the physical layer. Thus,…

Information Theory · Computer Science 2013-08-19 Jun Wang , Pengfei Huang , Xudong Wang