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
A novel relay selection algorithm using ant colony optimization with artificial noise for secrecy enhancement in cooperative networks
TL;DR: A novel relay selection scheme combined with artificial noise (AN) is devised to enhance the secrecy of cooperative networks with amplify‐and‐forward scheme, over Rayleigh fading channels in the presence of a passive eavesdropper.
Journal ArticleDOI
A multihop key agreement scheme for wireless ad hoc networks based on channel characteristics.
Zhuo Hao,Sheng Zhong,Nenghai Yu +2 more
TL;DR: An improved multihop key agreement scheme for wireless ad hoc networks is proposed and it is shown that the improved scheme is secure against internal eavesdroppers and MITM adversaries in a single path.
Proceedings ArticleDOI
Joint transmit antenna selection and jamming for security enhancement in MIMO wiretap channels
Yajun Zhang,Tao Liang,Aiwei Sun +2 more
TL;DR: It is demonstrated that the proposed TAS-Jamming protocol offers higher secure performance than other existing TAS protocols when the SNR of transmitter-receiver channel is below a specific value.
Journal ArticleDOI
Optimal Power Allocation in Block Fading Channels With Confidential Messages
TL;DR: In this article, the optimal power allocation for block fading (BF) networks with confidential messages is investigated under an $M$ -block delay and power constraint, and it is shown that the optimal allocation is the equidistribution of the power budget, denoted as the blind policy.
Proceedings ArticleDOI
Secrecy Analysis of Relay Assisted Device-to-Device Systems under Channel Uncertainty
TL;DR: This work derives a generalized closed-form expression of outage probability of the secrecy capacity of N hop relay based D2D communication system from the perspective of physical layer security in relay assisted Device-to-Device (D2D) communication.
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.