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
Reliability-Based Sliced Error Correction in Secret Key Agreement from Fading Channel
TL;DR: The proposed information reconciliation protocols are modified versions of a protocol used in quantum key distribution called sliced error correction using Cascade and can correct errors with less the number of disclosed bits and less thenumber of communications than the conventional sliced error Correction using Cascade.
Journal ArticleDOI
Two-step transmission with artificial noise for secure wireless SIMO communications
TL;DR: A two-step transmission scheme with artificial noise to improve the security and the scheme does not require the channel state information of the eavesdropper and outperforms the traditional SIMO approach especially in the high SNR region.
Proceedings ArticleDOI
DASI: A truthful double auction mechanism for secure information transfer in cognitive radio networks
TL;DR: It is proved that DASI preserves nice economic properties that are critical for the auction design, including truthfulness, individual rationality and budget balance, and is evaluated in terms of aggregated throughput and spectrum utilization ratio by simulations.
Journal ArticleDOI
A survey of privacy-preserving offloading methods in mobile-edge computing
TL;DR: In this article , a thorough review of the state-of-the-art on privacy-preserving task offloading in mobile edge computing is provided. But, serious privacy concerns come along with offloading, due to the vulnerability of edge servers and the wireless transmission feature.
Proceedings ArticleDOI
Achievable secrecy rates for wiretap OFDM with QAM constellations
TL;DR: This paper considers the information theoretic secrecy rates that are achievable in a wiretap OFDM channel when transmitting quadrature amplitude modulation (QAM) constellation symbols and proposes bit-loading strategies to efficiently allocate the appropriate number of bits in each subchannel.
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.