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
On Secrecy Performance of Millimeter-Wave RF-Assisted FSO Communication Systems
TL;DR: To analyze the secrecy performance of the mixed millimeter-wave (mm-wave) radio frequency (RF) assisted free-space optical (FSO) system as a future candidate transmission technology, exact closed-form expressions for the average secrecy capacity and lower bound of the secrecy outage probability are derived.
Journal ArticleDOI
Robust Beamforming Design for Secrecy in Multiuser Peer-to-Peer Wireless Relay Networks
TL;DR: Simulations show that the proposed design of the robust relay beamforming mechanism for MUP2P relay networks can significantly improve the performance of secure wireless communications.
Journal ArticleDOI
Performance study of hybrid decode–amplify–forward (HDAF) relaying scheme for physical layer security in wireless cooperative network
Kiran Kumar Gurrala,Susmita Das +1 more
TL;DR: The secrecy performance and power allocation of the signal‐to‐noise ratio‐based hybrid decode–amplify–forward (HDAF) relaying protocol in wireless cooperative network are investigated and maximizing the secrecy rate is defined as the cost function for the proposed IWO algorithm‐based power allocation.
Posted Content
Separation of Reliability and Secrecy in Rate-Limited Secret-Key Generation
Remi A. Chou,Matthieu R. Bloch +1 more
TL;DR: This work considers a sequential key-generation strategy, that implements a rate-limited reconciliation step to handle reliability, followed by a privacy amplification step performed with extractors to handle secrecy, and proves that such a sequential strategy achieves the best known bounds for the rate- limited WSK capacity.
Proceedings ArticleDOI
Fading cognitive multiple-access channels with confidential messages
TL;DR: The fading cognitive multiple-access channel with confidential messages (MAC-CM) is investigated, in which two users attempt to transmit common information to a destination and user 1 also has confidential information intended for the destination.
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.
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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.