Results 51 to 60 of about 455,839 (311)
Physical Layer Security in Cognitive Millimeter Wave Networks
IEEE Access, 2019 Millimeter wave (mmWave) communications and cognitive radio networks are two key technologies to improve the spectral efficiency. For a cognitive mmWave wiretap network in which randomly located eavesdroppers may reside in the signal beam of the ...
Yi Song +4 more
doaj +1 more source
Physical-Layer Security over Correlated Erasure Channels
, 2011 We explore the additional security obtained by noise at the physical layer in a wiretap channel model setting. Security enhancements at the physical layer have been proposed recently using a secrecy metric based on the degrees of freedom that an attacker
Almeida, J. +3 more
core +1 more source
Physical Encoding in Optical Layer Security
Journal of Cyber Security and Mobility, 2012 Data security at the physical layer of optical networks, or optical layer security, has received considerable research attention due to the rapid growth of optical network capacity [1]. Among various optical layer approaches, optical codedivision multiple access (OCDMA) systems are considered to be promising because of the physical encoding and ...
Zhenxing Wang +2 more
openaire +2 more sources
Physical layer security of NOMA-D2D cooperative wireless system
Dianxin kexue, 2022 Aiming at the physical layer security (PLS) application requirement of massive user equipments access in the future, the PLS model combining with non-orthogonal multiple access (NOMA), device-to-device (D2D) and relay cooperation was proposed.The model ...
Yifan DING, Guangqiu LI, Hui LI
doaj +2 more sources
Physical Layer Security in Cognitive Untrusted Relay Networks
IEEE Access, 2018 In this paper, we consider the secure communications in a cognitive untrusted relay network, where the secondary source intends to communicate with a secondary destination through an untrusted relay in the presence of the direct source-destination link ...
Dechuan Chen +4 more
doaj +1 more source
Physical Layer Security in Millimeter Wave Cellular Networks
, 2016 Recent researches show that millimeter wave (mmWave) communications can offer orders of magnitude increases in the cellular capacity. However, the secrecy performance of a mmWave cellular network has not been investigated so far.
Wang, Chao, Wang, Hui-Ming
core +1 more source
Advanced Engineering Materials, EarlyView.Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar +7 more
wiley +1 more source
Achievable Physical-Layer Security Over Composite Fading Channels
IEEE Access, 2020 We investigate the physical layer security limits of Wyner's wiretap model over Fisher-Snedecor .T composite fading channels. .T fading conditions have been recently shown to provide an accurate characterization of multipath fading and shadowing effects ...
Osamah S. Badarneh +5 more
doaj +1 more source
Information-theoretic Physical Layer Security for Satellite Channels
, 2017 Shannon introduced the classic model of a cryptosystem in 1949, where Eve has access to an identical copy of the cyphertext that Alice sends to Bob. Shannon defined perfect secrecy to be the case when the mutual information between the plaintext and the ...
Hayashi, Masahito +1 more
core +1 more source
Advanced Functional Materials, EarlyView.Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana +2 more
wiley +1 more source