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
Secure Beamforming and Artificial Noise Algorithms in Cognitive Satellite-Terrestrial Networks With Multiple Eavesdroppers
TL;DR: This paper studies the secure beamforming and artificial noise techniques for a cognitive satellite-terrestrial network, where a satellite system termed as the primary network under the interception of multiple unauthorized eavesdroppers shares the spectrum of resources with multi-cell secondary terrestrial networks.
Proceedings ArticleDOI
Secure wireless multicasting in presence of multiple eavesdroppers
TL;DR: It is shown that the physical layer security can be maintained even in presence of multiple eavesdroppers consisting multiple antennas, and new closed-form expressions are developed for the analysis of probability of positive secrecy as well as outage probability.
Proceedings ArticleDOI
Divide-and-conquer based cooperative jamming: Addressing multiple eavesdroppers in close proximity
TL;DR: Stochastic geometry based analytic results as well as Monte Carlo simulations are presented to illustrate the achievable secrecy performances of divide-and-conquer based cooperative jamming for physical-layer security enhancement in the presence of multiple eavesdroppers.
Journal ArticleDOI
Multiple-Jammer-Aided Secure Transmission With Receiver-Side Correlation
TL;DR: The simulation results verify that the proposed scheme of multiple cooperative jammers provides substantial gains in terms of secrecy.
Journal ArticleDOI
Improving Physical-Layer Security for Wireless Communication Systems Using Duality-Aware Two-Way Relay Cooperation
TL;DR: This paper focuses on how to effectively exploit the two-way relay cooperation for improving the system physical-layer security with the help of the achieved diversity gain and proposes a novel relay selection criterion to optimize the secrecy outage performance.
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.
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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.
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.