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
Secrecy in MIMOME wiretap channels: Beamforming with imperfect CSI
TL;DR: An easy-to-construct EVD-based beamforming scheme which reduces signal processing cost and eliminates power allocation and delivers a higher secrecy rate than the GEVD-basedbeamforming scheme and the existing beamforming schemes in the low SNR regime.
Posted Content
On Maximal Ratio Diversity with Weighting Errors for Physical Layer Security
TL;DR: In this paper, the performance of maximal ratio combining with weighting errors for physical layer security was investigated for both legitimate user and eavesdropper each equipped with multiple antennas employing non ideal MRC.
Journal ArticleDOI
On maximal ratio diversity with weighting errors for physical layer security
TL;DR: This letter introduces the performance of maximal ratio combining (MRC) with weighting errors for physical layer security and investigates asymptotic behavior of the outage probability for high signal-to-noise ratio in main channel between the legitimate user and the transmitter.
Posted Content
Enhanced Transmit Antenna Selection Scheme for Secure Throughput Maximization Without CSI at the Transmitter and its Applications on Smart Grids
Hirley Alves,Mauricio de Castro Tomé,Pedro H. J. Nardelli,Carlos H. M. de Lima,Matti Latva-aho +4 more
TL;DR: This paper proposes a simple protocol to enhance security via transmit antenna selection, and assess its performance in a closed form by means of secrecy outage and successful transmission probabilities, and establishes a security-reliability tradeoff.
Journal ArticleDOI
On Secrecy Performance of Antenna Selection Aided MIMO Systems Against Eavesdropping
TL;DR: This paper considers a multiple-input-multiple-output (MIMO) system consisting of one source, one destination, and one eavesdropper, where each node is equipped with an arbitrary number of antennas and shows that the proposed OAS scheme strictly outperforms both the STT and the SAS schemes in terms of the probability of zero secrecy capacity.
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.
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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.
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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.