Journal ArticleDOI
Wireless Information-Theoretic Security
TLDR
A practical secure communication protocol is developed, which uses a four-step procedure to ensure wireless information-theoretic security and is shown that the protocol is effective in secure key renewal-even in the presence of imperfect channel state information.Abstract:
This paper considers the transmission of confidential data over wireless channels. Based on an information-theoretic formulation of the problem, in which two legitimates partners communicate over a quasi-static fading channel and an eavesdropper observes their transmissions through a second independent quasi-static fading channel, the important role of fading is characterized in terms of average secure communication rates and outage probability. Based on the insights from this analysis, a practical secure communication protocol is developed, which uses a four-step procedure to ensure wireless information-theoretic security: (i) common randomness via opportunistic transmission, (ii) message reconciliation, (iii) common key generation via privacy amplification, and (iv) message protection with a secret key. A reconciliation procedure based on multilevel coding and optimized low-density parity-check (LDPC) codes is introduced, which allows to achieve communication rates close to the fundamental security limits in several relevant instances. Finally, a set of metrics for assessing average secure key generation rates is established, and it is shown that the protocol is effective in secure key renewal-even in the presence of imperfect channel state information.read more
Citations
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Proceedings ArticleDOI
Physical layer security over cascaded Rayleigh fading channels
TL;DR: In this letter, physical layer secrecy/security performance analysis has been investigated over cascaded fading channels where the fading effects are worse than those in the cellular communication channels like Rayleigh and Nakagami-m.
Proceedings ArticleDOI
Secrecy Performance of Dual-Hop Threshold Relaying System with Diversity Reception
TL;DR: It was observed that when the required rate is low, having CSI knowledge is more advantageous than in the case of higher rate, and SOP cannot be improved beyond a certain value when keeping either dual-hop link average SNR fixed and increasing the other link SNR, whereas the ergodic secrecy rate can be increased by keeping the source to destination averageSNR fixed.
Journal ArticleDOI
Evaluation of Secrecy Capacity for Next-Generation Leadless Cardiac Pacemakers
TL;DR: This article will help in design of the communication module of implanted leadless cardiac pacemakers with enhanced security on the physical layer by providing secrecy analysis using a performance metric of secrecy capacity.
Book ChapterDOI
Physical Layer Security in Hybrid Satellite-Terrestrial Relay Networks
TL;DR: In this paper, the secrecy outage probability (SOP) performance of a basic HSTRN in the presence of a single eavesdropper and generalized HstrN configuration with multiple eavesdroppers was investigated.
Proceedings ArticleDOI
High SNR performance of amplify-and-forward relaying in Rayleigh fading wiretap channels
TL;DR: A novel measure, the conditional secrecy outage probability, is introduced and derived to analyze the performance of amplify-and-forward relaying for secrecy in quasi-static Rayleigh fading channels to derive closed-form expressions for AF for these two secrecy measures under a high SNR assumption.
References
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Wireless Communications: Principles and Practice
TL;DR: WireWireless Communications: Principles and Practice, Second Edition is the definitive modern text for wireless communications technology and system design as discussed by the authors, which covers the fundamental issues impacting all wireless networks and reviews virtually every important new wireless standard and technological development, offering especially comprehensive coverage of the 3G systems and wireless local area networks (WLANs).
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New Directions in Cryptography
TL;DR: This paper suggests ways to solve currently open problems in cryptography, and discusses how the theories of communication and computation are beginning to provide the tools to solve cryptographic problems of long standing.
Journal ArticleDOI
Communication theory of secrecy systems
TL;DR: A theory of secrecy systems is developed on a theoretical level and is intended to complement the treatment found in standard works on cryptography.
Book
Fundamentals of Wireless Communication
David Tse,Pramod Viswanath +1 more
TL;DR: In this paper, the authors propose a multiuser communication architecture for point-to-point wireless networks with additive Gaussian noise detection and estimation in the context of MIMO networks.