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
Ergodic Secrecy Capacity Region of the Fading Broadcast Channel
Ersen Ekrem,Sennur Ulukus +1 more
TL;DR: This work considers the fading broadcast channel from a secrecy point of view, and establishes the secrecy capacity region of this channel for the case where the transmitter sends a common message to both users and an individual confidential message to each user.
Journal ArticleDOI
Improving Physical Layer Security of Cellular Networks Using Full-Duplex Jamming Relay-Aided D2D Communications
TL;DR: It is shown that increasing the number of FD jamming antennas enhances the secrecy performance of the cellular network and closed-form expressions for the secrecy outage probability and the probability of non-zero secrecy capacity are derived.
Proceedings ArticleDOI
Power allocation strategies for OFDM Gaussian wiretap channels with a friendly jammer
TL;DR: It is demonstrated that the proposed jammer power allocation strategy can lead to considerable secrecy gains, leading to significant performance gains in relation to isotropic jamming.
Journal ArticleDOI
Link Selection for Security-QoS Tradeoffs in Buffer-Aided Relaying Networks
TL;DR: This article investigates the secure communication in a two-hop cooperative wireless network, where a buffer-aided relay helps forward data from the source to destination, and a passive eavesdropper attempts to intercept data transmission from both the source and relay.
Proceedings ArticleDOI
A Secret Key Extraction Technique Applied in Vehicular Networks
TL;DR: Using the special characteristics and the randomness inherent of the wireless channel, a secret key extraction technique applied in VANET is proposed and results show that the extracted key approach can be adjusted to extract either high or low rate key with high entropy rate and minimum information exchange between the legitimate vehicles.
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.