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 the Security of Compressed Sensing-Based Signal Cryptosystem
Zuyuan Yang,Wei Yan,Yong Xiang +2 more
TL;DR: It is shown that the CS-based cryptosystem achieves the extended Wyner-sense perfect secrecy, but when the key is used repeatedly, both the plaintext and the key could be conditionally accessed.
Journal ArticleDOI
Physical Layer Security Performance of Mobile Vehicular Networks
Lingwei Xu,Lingwei Xu,Xu Yu,Han Wang,Xinli Dong,Yun Liu,Wenzhong Lin,Xinjie Wang,Jingjing Wang,Jingjing Wang +9 more
TL;DR: The physical layer security performance of the mobile vehicular networks over N- Nakagami fading channels is investigated and exact closed-form expressions for the probability of strictly positive secrecy capacity, secrecy outage probability, and average secrecy capacity are derived.
Journal ArticleDOI
On Secure Wireless Communications for Service Oriented Computing
TL;DR: This paper establishes a theoretical framework for the study of eavesdropper-tolerance capability in a two-hop wireless network, where the cooperative jamming is adopted to ensure security defined by secrecy outage probability (SOP) and opportunistic relaying is adoption to guarantee reliability defined by transmission outage probabilities (TOP).
Journal ArticleDOI
On the physical layer security over Beaulieu-Xie fading channel
TL;DR: The effect of randomness caused by the Beaulieu-Xie fading channel on the performance of physical layer security and the closed-form expressions for lower-bound of secrecy outage probability and strictly positive secrecy capacity for the said channel are studied.
Journal ArticleDOI
New Bandwidth Efficient Relaying Schemes in Cooperative Cognitive Two-Way Relay Networks With Physical Layer Security
TL;DR: The proposed model is shown to achieve a nonzero secrecy rate that improves the PU system security against eavesdropping attacks and the error performance of the proposed relay selection model outperforms the conventional two-way relaying networks with AF protocol.
References
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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.
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.