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
Secret key generation from reciprocal spatially correlated MIMO channels
TL;DR: The results indicate that a solid system design for reciprocal MIMO key generation is required to establish the secret key rate gains, and surprisingly for small SNR, spatial correlation increases thesecret key rate.
Journal ArticleDOI
A Model for Adversarial Wiretap Channels
TL;DR: An upper bound on the rate of AWTP codes for (ρr, ρw)-AWTP channels is proved and an explicit construction of a perfectly secure AWTP code family with efficient decoding is given that achieves the bound and, hence, obtain the secrecy capacity of AWTB channels for large alphabets.
Proceedings ArticleDOI
Outage constrained secrecy rate maximization using artificial-noise aided beamforming and cooperative jamming
TL;DR: A higher secure energy efficiency can be achieved as compared with other schemes without a cooperative jammer, and the goal is to maximize the secrecy rate, subject to a constraint on secrecy outage probability.
Journal ArticleDOI
Energy efficiency analysis and enhancement for secure transmission in SWIPT systems exploiting full duplex techniques
TL;DR: This paper investigates the secure transmission in simultaneous wireless information and power transfer (SWIPT) system, where a source node communicates with a wireless-powered full duplex destination node in the presence of a passive eavesdropping node, and derives the closed-form expressions for the connection outage probability, the secrecy outage probability and the transmission outage probability.
Journal ArticleDOI
Physical layer security of MIMO–OFDM systems by beamforming and artificial noise generation ☆
TL;DR: This paper investigates the capability of the eavesdropper to jeopardize the security of the system by mitigating the interfering effect of the artificial noise using zero forcing as a receive beamforming strategy and shows that although zero forcing is not the optimal strategy to maximize the SNR, it offers (from the eaves dropper’s perspective) a better performance than MMSE for MIMO frequency selective channels and thus threatens the overall security ofThe system.
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.