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Physical Layer Security Performance Analysis of MIMOME Systems Over Keyhole Channels

open access: yesIEEE Open Journal of the Communications Society
The inherent openness of wireless networks exposes them to eavesdropping threats. In dense urban environments, signal propagation is frequently characterized by the keyhole effect, which causes channel rank deficiency and cascaded fading, challenging the
Xujie Zang, Hongwen Yang
doaj   +1 more source

Matrix Power Function Based Block Cipher Operating in CBC Mode

open access: yesMathematics, 2022
In our previous study, we proposed a perfectly secure Shannon cipher based on the so-called matrix power function. There we also introduced a concept of single round symmetric encryption, i.e., we used the matrix power function together with some rather ...
Lina Dindiene   +3 more
doaj   +1 more source

Distributed Matching Algorithms: Maximizing Secrecy in the Presence of Untrusted Relay [PDF]

open access: yesRadioengineering, 2017
In this paper, we propose a secrecy sum-rate maximization based matching algorithm between primary transmitters and secondary cooperative jammers in the presence of an eavesdropper.
B. Ali   +3 more
doaj  

Perfect secrecy cryptosystem with nonuniform distribution of keys

open access: yesTongxin xuebao, 2018
More strictly mathematical concepts of infinite perfect secrecy and random “one-time pad” cryptosystem in theory were presented,and the whole secure communication system was divided into two stages:design of a basic cryptosystem and one of its ...
Chuanjun TIAN
doaj   +2 more sources

A Real Orthogonal Space-Time Coded UWB Scheme for Wireless Secure Communications

open access: yesEURASIP Journal on Wireless Communications and Networking, 2009
Recent research reveals that information security and information-hiding capabilities can be enhanced by proper exploitation of space-time techniques. Meanwhile, intrinsic properties of ultra-wideband (UWB) signals make it an outstanding candidate for ...
Zhang Yanbing, Dai Huaiyu
doaj   +2 more sources

Secrecy Balancing over Two-User MISO Interference Channels with Rician Fading

open access: yesInternational Journal of Antennas and Propagation, 2013
This paper considers a 2-user multiple-input single-output (MISO) interference channel with confidential messages (IFC-CM), in which the Rician channel model is assumed.
Jiqing Ni   +5 more
doaj   +1 more source

Analysis and improvement of an ID-based authenticated key agreement protocol

open access: yesTongxin xuebao, 2008
The security of a recently proposed ID-based authenticated key agreement protocol was analyzed. Although it is provably secure in the standard model, a malicious PKG (private key generator) can still obtain all of the agreed ses-sion keys, that is, it ...
WANG Xiao-fen1   +2 more
doaj   +2 more sources

Investigations on Secrecy Performance of Downlink Overlay CR-NOMA System With SIC Imperfections

open access: yesIEEE Access
Cognitive radio (CR) and non-orthogonal multiple access (NOMA) are two technologies witnessed to offer tremendous possibilities for the next generation wireless networks to maximise their usage of available spectrum.
Kiran Kumar Godugu, Suseela Vappangi
doaj   +1 more source

Secure On-Off Transmission in UAV Relay-Assisted mmWave Networks

open access: yesApplied Sciences, 2019
This paper investigates secure transmission in unmanned aerial vehicle (UAV) relay-assisted millimeter wave (mmWave) networks, where the selected UAV relay performs secure transmission in both the on-off and non-on-off schemes.
Ruiqian Ma   +3 more
doaj   +1 more source

PERFORMANCE ANALYSIS OF COOPERATION SCHEMES IN EAVESDROPPER ASSISTED RELAY CHANNEL [PDF]

open access: yesICTACT Journal on Communication Technology, 2014
The prominence of the wireless communication has been urging the monotonically increasing demand of security and privacy. In wireless systems, the notion of perfect secrecy of information with respect to illegitimate nodes can be ensured via physical ...
Vaibhav Kumar Gupta, Poonam Jindal
doaj  

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