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 Transmission With Antenna Selection in MIMO Nakagami-m Fading Channels
TL;DR: This paper considers transmit antenna selection (TAS) and receive generalized selection combining (GSC) for secure communication in the multiple-input-multiple-output wiretap channel, where confidential messages transmitted from an NA-antenna transmitter to an NB-ant antenna legitimate receiver are overheard by an NE-ant Jenna eavesdropper.
Journal ArticleDOI
Max-Ratio Relay Selection in Secure Buffer-Aided Cooperative Wireless Networks
TL;DR: A new max-ratio relay selection policy is proposed to optimize the secrecy transmission by considering all the possible source-to-relay and relay- to-destination links and selecting the relay having the link which maximizes the signal to eavesdropper channel gain ratio.
Journal ArticleDOI
Secrecy Capacity Analysis Over $\kappa $ – $\mu $ Fading Channels: Theory and Applications
TL;DR: Novel analytical solutions for the probability of strictly positive secrecy capacity (SPSC) and a lower bound of secure outage probability (SOP) for independent and non-identically distributed channel coefficients without parameter constraints are obtained.
Journal ArticleDOI
Artificial Noise: Transmission Optimization in Multi-Input Single-Output Wiretap Channels
TL;DR: This work analyzes and optimize the secrecy performance of artificial noise in multi-input single-output wiretap channels with multiple antennas at the transmitter and a single antenna at the receiver and the eavesdropper and determines the optimal power allocation between the information signal and the AN signal.
Journal ArticleDOI
Secure Transmission with Optimal Power Allocation in Untrusted Relay Networks
TL;DR: The problem of secure transmission in two-hop amplify-and-forward untrusted relay networks and the ergodic secrecy capacity (ESC) is considered and compact expressions for the ESC in the high signal-to-noise ratio regime are presented.
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.