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
Highly Accurate and Asymptotic Analysis on the SOP Over SIMO $\alpha$ – $\mu$ Fading Channels
TL;DR: The derived SOP is in highly accurate match with simulation results for the SIMO case, and a perfect match with simulated results for single-input single-output (SISO) case.
Proceedings ArticleDOI
On the ergodic secrecy capacity of the wiretap channel under imperfect main channel estimation
TL;DR: A framework that characterizes this secrecy capacity under imperfect main channel estimation at the transmitter and inner and outer bounds on the ergodic secrecy capacity are derived for a class of independent identically distributed (i.i.d.) Rayleigh fading channels.
Journal ArticleDOI
Secrecy outage performance for partial relay selection schemes in cooperative systems
TL;DR: To protect the transmitted information over R–D link from being eavesdropped, the authors propose a new transmission scheme that processes the messages from S and D by XOR operation in order to prevent the eavesdropper's interception while the information is delivered between R and D.
Journal ArticleDOI
On the Security–Reliability and Secrecy Throughput of Random Mobile User in Internet of Things
TL;DR: Two transmission schemes are proposed to maximize the secrecy throughput of the mobile user by ensuring a certain level of transmit probability (TP) and TSOP requirements and indicate that by adopting appropriate mobility pattern, the user’s secrecy throughput can be improved, and the constraint on its moving region can be largely reduced.
Journal ArticleDOI
Optimal Channel Estimation in Beamformed Systems for Common-Randomness-Based Secret Key Establishment
TL;DR: It is demonstrated that the eigenvectors of the channel spatial covariance matrix should be used as beamformer weights during channel estimation and the energy allocated to channel estimation for each beamformer weight under a total energy constraint is optimized.
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.