Results 21 to 30 of about 168,598 (259)

Artificial neural net based noise cancellor [PDF]

open access: yesACE '90. Proceedings of [XVI Annual Convention and Exhibition of the IEEE In India], 2005
This paper presents a new method for noise cancellation with an Artificial Neural Network. The network used is a feedforward one with three layers. The backpropagation and Stastical Cauchy's learning algorithms are employed for adaptation of the internal parameters of the network.
Dash, PK   +3 more
openaire   +2 more sources

Safeguarding MIMO Communications with Reconfigurable Metasurfaces and Artificial Noise [PDF]

open access: yesICC 2021 - IEEE International Conference on Communications, 2021
6 pages, 3 figures, submitted to an IEEE ...
George C. Alexandropoulos   +3 more
openaire   +3 more sources

GPI-Based Secrecy Rate Maximization Beamforming Scheme for Wireless Transmission With AN-Aided Directional Modulation

open access: yesIEEE Access, 2018
In a directional modulation network, a general power iterative (GPI) based beamforming scheme is proposed to maximize the secrecy rate (SR), where there are two optimization variables required to be optimized. The first one is the useful precoding vector
Hai Yu   +9 more
doaj   +1 more source

Artificial Noise-Aided Physical Layer Security in Underlay Cognitive Massive MIMO Systems with Pilot Contamination

open access: yesEntropy, 2017
In this paper, a secure communication model for cognitive multi-user massive multiple-input multiple-output (MIMO) systems with underlay spectrum sharing is investigated.
Hayder Al-Hraishawi   +2 more
doaj   +1 more source

Cooperative Beamforming With Artificial Noise Injection for Physical-Layer Security

open access: yesIEEE Access, 2023
In the sixth-generation (6G) communications, how to deploy and manage massively connected Internet-of-Things (IoT) nodes will be one of the key technical challenges, because 6G is expected to provide 10 times higher connection, compared to 5G.
Geunyeong Jang   +3 more
doaj   +1 more source

Cooperative Jammer Selection for Secrecy Improvement in Cognitive Internet of Things

open access: yesSensors, 2018
Smart homes can improve the quality of life and be implemented by Internet of Things (IoT) technologies. However, security is a very important issue in smart homes.
Ping Xie   +4 more
doaj   +1 more source

Power and Time Slot Allocation Method for Secured Satellite Transmission Based on Weighted Fractional Data Carrying Artificial Noise

open access: yesIEEE Access, 2018
In this paper, a power and time slot allocation method is proposed for the weighted fractional data carrying artificial noise (DCAN) to secure satellite transmission.
Ruiyang Xu   +4 more
doaj   +1 more source

Covert Wireless Communication With Artificial Noise Generation

open access: yesIEEE Transactions on Wireless Communications, 2018
Covert communication conceals the transmission of the message from an attentive adversary. Recent work on the limits of covert communication in additive white Gaussian noise (AWGN) channels has demonstrated that a covert transmitter (Alice) can reliably transmit a maximum of $\mathcal{O}\left(\sqrt{n}\right)$ bits to a covert receiver (Bob) without ...
Ramin Soltani   +4 more
openaire   +2 more sources

Artificial Noise Aided Hybrid Analog-Digital Beamforming for Secure Transmission in MIMO Millimeter Wave Relay Systems

open access: yesIEEE Access, 2019
Millimeter wave (mm-wave) communications, especially mm-wave relay systems, have been considered as a key technology for next-generation wireless networks due to the rich spectrum resources.
Shaoyu Wang   +5 more
doaj   +1 more source

Acoustic Metasurface for Space‐time Reflection Manipulation

open access: yesAdvanced Science
Recently, space‐time modulation has revolutionized the wave engineering technologies, providing unprecedented opportunities beyond traditional static systems.
Yunhan Yang   +6 more
doaj   +1 more source

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