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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Journal ArticleDOI
Performance of Secure Communications Over Correlated Fading Channels
TL;DR: This work derives exact expressions for both the average secrecy capacity and the outage probability in the form of infinite series from the performance analysis of secure communications over correlated fading channels in the presence of an eavesdropper.
Posted Content
Secure Communications in Millimeter Wave Ad Hoc Networks
TL;DR: In this article, the average achievable secrecy rate in a large-scale mmWave ad hoc network with random blockages and antenna gains was investigated, and it was shown that the use of low mmWave frequency achieves better secrecy performance, and when increasing transmit power, a transition from low mm-wave frequency to high mm-Wave frequency is needed for obtaining a higher secrecy rate.
Journal ArticleDOI
Practical Physical Layer Security Schemes for MIMO-OFDM Systems Using Precoding Matrix Indices
TL;DR: Not only the secure communication but also the MIMO gain can be guaranteed by using the proposed schemes, including the precoding matrix index (PMI)-based secret key generation with rotation matrix (MOPRO) and the channel quantization-based (MOCHA) scheme.
Journal ArticleDOI
Secrecy Transmission With a Helper: To Relay or to Jam
TL;DR: This paper considers the problem of secure communications for a four-node system consisting of one source, one destination, one eavesdropper, and one helper, and defines a notion of distance normalized signal-to-noise-ratio (DN-SNR) to account for propagation.
Journal ArticleDOI
Joint Relay and Jammer Selection Improves the Physical Layer Security in the Face of CSI Feedback Delays
TL;DR: In this article, the authors derive closed-form expressions of both the connection outage probability and of the secrecy outage probability for both the TBRS and JRJS schemes, and a reliable-and-secure connection probability (RSCP) is defined and analyzed for characterizing the effect of the correlation between the COP and SOP introduced by the corporate source-relay link.
References
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Book
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.