Results 231 to 240 of about 170,227 (256)
Some of the next articles are maybe not open access.
Reducing noise in photoamplifier circuits with low noise artificial resistors
Journal of Applied Physics, 1982A standard passive dissipative resistor in a photodiode circuit is replaced by a low-noise active artificial resistor. A room-temperature artificial resistor acts on a signal current from the photodiode in the same manner as the resistor, but the self-generated noise of the artificial resistor is that of a resistor at cryogenic temperatures. Because of
openaire +1 more source
Artificial noise scheme to ensure secure communications in CWSN
2012 8th International Wireless Communications and Mobile Computing Conference (IWCMC), 2012This paper presents an artificial noise strategy to increase physical-layer security in Cognitive Wireless Sensor Networks (CWSN). Spectrum sensing, information sharing and collaborative cognitive features are used to avoid eavesdropping attacks. Artificial noise generation is proposed to conceal the secret message to be transmitted.
Álvaro Araujo +3 more
openaire +1 more source
PIV Measurements of Buffet with Artificial Noise
2017The transonic buffet flow field around supercritical airfoils is dominated by self-sustained shock wave oscillations on the suction side of the wing. Current theories assume that this unsteadiness is driven by a feedback loop of disturbances in the flow field downstream of the shock wave of which the upstream propagating part is formed by acoustic ...
Antje Feldhusen-Hoffmann +2 more
openaire +1 more source
Secure beamforming for cognitive radio networks with artificial noise
2015 International Conference on Wireless Communications & Signal Processing (WCSP), 2015In this paper, we address the secrecy problem for a cognitive radio network (CRN) by using physical layer security (PHY-security) technology. In order to effectively enhance wireless security, we propose to adopt artificial noise (AN) to impair the quality of the interception signal.
Wu, Yanan, Chen, Xiaoming, Chen, Xianfu
openaire +4 more sources
Noise Optimization in Artificial Neural Networks
2022 IEEE 18th International Conference on Automation Science and Engineering (CASE), 2022Li Xiao 0005 +3 more
openaire +2 more sources
Security in MIMO wireless hybrid channel with artificial noise
2015 International Conference on Cyber Security of Smart Cities, Industrial Control System and Communications (SSIC), 2015Security is an important issue in the field of wireless channel. In this paper, the security problem of Gaussian MIMO wireless hybrid channel is considered where a transmitter with multiple antennas sends information to an intended receiver with one antenna in the presence of an eavesdropper with multiple antennas.
Xiao Chen +4 more
openaire +1 more source
Analysis on the effects of artificial noise on physical layer security
2013 21st Signal Processing and Communications Applications Conference (SIU), 2013Physical layer security has gained attention due to the increased usage of wireless communication systems. Our target is to avoid eavesdroppers to receive and decode the transmitted voice signals between the authorized transmitter and the receiver.
Özge Cepheli, Gunes Karabulut-Kurt
openaire +2 more sources
Artificial Noise Elimination: From the Perspective of Eavesdroppers
IEEE Transactions on Communications, 2022Hong Niu 0001 +3 more
openaire +2 more sources
Secrecy Degradation for Inevitable Phase Noise in Artificial Noise Shielded FH Systems
2021 IEEE Globecom Workshops (GC Wkshps), 2021Changqing Song +4 more
openaire +1 more source