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
More filters
Journal ArticleDOI
Secret-Key Agreement With Channel State Information at the Transmitter
TL;DR: In this paper, the capacity of secret-key agreement over a wiretap channel with state parameters was studied and lower and upper bounds on the secret key capacity were derived for Gaussian channels with additive interference.
Journal ArticleDOI
Secrecy Outage Analysis of Mixed RF-FSO Downlink SWIPT Systems
TL;DR: A secure dual-hop mixed radio frequency-free space optical (RF-FSO) downlink simultaneous wireless information and power transfer system is analyzed to derive the closed-form expression of the secrecy outage probability (SOP) as well as the asymptotic result when signal-to-noise ratios at relay and legitimate destinations tend to infinity.
Journal ArticleDOI
Secure Cooperative Communications With an Untrusted Relay: A NOMA-Inspired Jamming and Relaying Approach
TL;DR: Analytical expressions of an ergodic secrecy sum rate (ESSR) lower bound and an asymptotic ESSR scaling law are derived to evaluate the secrecy performance of the proposed NOMA-inspired jamming and relaying scheme to enhance the physical layer security of untrusted relay networks.
Journal ArticleDOI
On Ergodic Secrecy Capacity of Random Wireless Networks With Protected Zones
TL;DR: It is shown that the application of secrecy and interferer protected zones lead to significant improvement in security, depending on different system parameters.
Journal ArticleDOI
Secrecy Outage of Dual-Hop Regenerative Multi-Relay System With Relay Selection
TL;DR: It is observed that the improvement in eavesdropper link quality affects the secrecy outage more when required secrecy rate is low as compared to the case when rate is high, and that relay selection improves performance more when number of relays are more.
References
More filters
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.