scispace - formally typeset
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

Content maybe subject to copyright    Report

Citations
More filters
Journal ArticleDOI

Physical Layer Security of a Dual-Hop Regenerative Mixed RF/UOW System

TL;DR: The present contribution investigates the secrecy outage performance of a dual-hop decode-and-forward (DF) mixed radio-frequency/underwater optical wireless communication (RF/UOWC) system and derives a closed-form expression for the secrecyoutage probability along with a thorough asymptotic analysis in the high SNR regime.
Journal ArticleDOI

Secure Broadcasting With Imperfect Channel State Information at the Transmitter

TL;DR: This work analyzes the effect of the noisy estimation of the main CSI on the throughput of a broadcast channel where the transmission is intended for multiple legitimate receivers in the presence of an eavesdropper and proves that a nonzero secrecy rate can still be achieved even when the CSI at the transmitter is noisy.
Proceedings ArticleDOI

On the Secrecy Mutual Information of Nakagami-m Fading SIMO Channel

TL;DR: This paper derives the analytical expressions for the probability of non-zero secrecy mutual information, secure outage probability and ergodic secrecy Mutual information of SIMO wireless communication systems over non-identically and identically independent Nakagami-m fading subchannels.
Journal ArticleDOI

Bound on the Key Establishment Rate for Multi-Antenna Reciprocal Electromagnetic Channels

TL;DR: The work detailed here generalizes the concept of key establishment by allowing the antennas at the two nodes to be represented by arbitrary transmit current or receive weight distributions modeled using complete basis sets and constrained to reside within fixed apertures.
Proceedings ArticleDOI

Average secrecy capacity of the Weibull fading channel

TL;DR: The present work is a generalization of the analysis on Rayleigh fading of the information-theoretic secrecy of Weibull fading channels and several formulas of the average secrecy capacity are derived.
References
More filters
Book

Digital Communications

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

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.
Related Papers (5)