Results 11 to 20 of about 181,397 (258)

The Secrecy Capacity Optimization Artificial Noise: A New Type of Artificial Noise for Secure Communication in MIMO System [PDF]

open access: yesIEEE Access, 2019
In multiple-input multiple-output wireless communication system, artificial noise (AN) is designed to be aligned into the null space of the legitimate channel so that it has no effect on the legitimate channel.
Yebo Gu   +3 more
doaj   +5 more sources

Artificial Noise Injection and Its Power Loading Methods for Secure Space-Time Line Coded Systems [PDF]

open access: yesEntropy, 2019
In this paper, we consider a 2 × 2 space-time line coded (STLC) system having two-transmit and two-receive antennas. To improve the secrecy rate of the STLC system, in which an illegitimate receiver eavesdrops the information delivered from ...
Jingon Joung   +3 more
doaj   +2 more sources

Performance Analysis of Artificial Noise-Assisted Location-Based Beamforming in Rician Wiretap Channels [PDF]

open access: yesEntropy, 2023
This paper studies the performance of location-based beamforming with the presence of artificial noise (AN). Secure transmission can be achieved using the location information of the user.
Hua Fu, Xiaoyu Zhang, Linning Peng
doaj   +2 more sources

Large-Scale Multicast Group Secure Transmission Scheme Based on Multi-Carrier FDA

open access: yesSensors, 2023
Aiming at the problem that the traditional physical layer technology cannot realize secure transmission due to the large number of users and wide dispersion in the multicast system, a layered transmission method is proposed, and a scheme for the secure ...
Dan Wu   +4 more
doaj   +1 more source

Antenna Grouping-Based Blind Artificial Noise for TDD Secure Transmission

open access: yesIEEE Access, 2021
The artificial noise (AN-) aided techniques have been considered as promising candidates to enhance the physical layer security. However, the effect of AN on an eavesdropper (Eve) can be severely degraded as the number of antennas at Eve increases.
Hyukmin Son, Sangjoon Park
doaj   +1 more source

Secrecy Performance of a Multi-NOMA-MIMO System in the UEH Relaying Network Using the PSO Algorithm

open access: yesIEEE Access, 2021
In this paper, we investigate the secrecy performance of the nonorthogonal multiple access (NOMA) system in an untrusted relaying energy harvesting (UEH) network with the multiple-input multiple-output (MIMO) architecture using the maximum ratio ...
Thi Le Anh, Ic Pyo Hong
doaj   +1 more source

Artificial Noise Revisited [PDF]

open access: yesIEEE Transactions on Information Theory, 2015
The artificial noise (AN) scheme, proposed by Goel and Negi, is being considered as one of the key enabling technology for secure communications over multiple-input multiple-output (MIMO) wiretap channels. However, the decrease in secrecy rate due to the increase in the number of Eve's antennas is not well understood.
Shuiyin Liu   +2 more
openaire   +4 more sources

Impact of Channel Estimation-and-Artificial Noise Cancellation Imperfection on Artificial Noise-Aided Energy Harvesting Overlay Networks [PDF]

open access: yesTelecommunication Systems, 2021
Abstract EHONs (Energy Harvesting Overlay Networks) satisfy stringent design requirements such as high energy-and-spectrum utilization efficiencies. However, due to open access nature of these networks, eavesdroppers can emulate cognitive radios to wire-tap legitimate information, inducing information security to become a great concern.
Khuong Ho-Van, Thiem Do-Dac
openaire   +1 more source

Secure Transmission of Terahertz Signals with Multiple Eavesdroppers

open access: yesMicromachines, 2022
The terahertz (THz) band is expected to become a key technology to meet the ever-increasing traffic demand for future 6G wireless communications, and a lot of efforts have been paid to develop its capacity.
Yuqian He   +4 more
doaj   +1 more source

Artificial and online acquired noise dictionaries for noise robust ASR [PDF]

open access: yesInterspeech 2010, 2010
sponsorship: The research by Jort F. Gemmeke was carried out in the MIDAS project within the STEVIN programme funded by the Dutch and Flemish Governments. The research of Tuomas Virtanen has been funded by the Academy of Finland. (Dutch and Flemish Governments, Academy of Finland)
Gemmeke, J.F., Virtanen, T.
openaire   +3 more sources

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