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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Book ChapterDOI
On the Transmit Beamforming for MIMO Wiretap Channels: Large-System Analysis
TL;DR: In this paper, the ergodic secrecy rate of MIMO wiretap channels in a fast fading environment has been characterized by using random matrix theory, and the problem of covariance optimization at the transmitter has been addressed.
Proceedings ArticleDOI
Secrecy outage probability analysis for cooperative communication with relay selection under non-identical distribution
TL;DR: The theoretical analysis is validated through simulation, and the results show that performance is enhanced with an increasing number of relays in the event of a direct link between the sender and the receiver's terminals.
Proceedings ArticleDOI
Security Performance Analysis of SIMO Generalized-K Fading Channels Using a Mixture Gamma Distribution
Hongjiang Lei,Imran Shafique Ansari,Huan Zhang,Khalid A. Qaraqe,Khalid A. Qaraqe,Gaofeng Pan +5 more
TL;DR: The security performance of SIMO generalized-K systems are investigated using a mixture gamma (MG) distribution, and the analytical expressions for the average secrecy capacity (ASC) and the secure outage probability (SOP) ofSIMO systems are derived.
Patent
Multidimensional coded modulation for wireless communications with physical layer security
TL;DR: In this paper, an optical OAM demultiplexer was used to extract the symbol constellation points corresponding to the symbols of the raw key from a coherent optical detector with an optical signal from a local oscillator.
Proceedings ArticleDOI
Cooperative jamming power control to enhance secrecy communications of AF Relaying systems for Rayleigh fading channel
TL;DR: This paper investigates secrecy communications in two-hop wireless relaying networks which consist of one source, one amplify-and-forward (AF) relay, one legitimate destination, and one eavesdropper, and shows that the outage-optimal allocation gives almost the same outage probability as the rateoptimal one.
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).
Journal ArticleDOI
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.