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Cited 4 time in webofscience Cited 6 time in scopus
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Deep Learning-Based Transmit Power Control for Wireless-Powered Secure Communications With Heterogeneous Channel Uncertainty

Authors
Lee, W.Lee, K.
Issue Date
Oct-2022
Publisher
Institute of Electrical and Electronics Engineers
Keywords
Communication system security; Deep learning; Deep learning; deep neural network; energy harvesting; Fading channels; heterogeneous channel uncertainty; interference channel; Internet of Things; Power control; Resource management; secure communication; Uncertainty
Citation
IEEE Transactions on Vehicular Technology, v.71, no.10, pp 1 - 11
Pages
11
Indexed
SCIE
SCOPUS
Journal Title
IEEE Transactions on Vehicular Technology
Volume
71
Number
10
Start Page
1
End Page
11
URI
https://scholarworks.gnu.ac.kr/handle/sw.gnu/818
DOI
10.1109/TVT.2022.3188104
ISSN
0018-9545
1939-9359
Abstract
In this paper, we investigate a method of transmit power control (TPC) for wireless-powered secure communications with untrusted energy harvesting receivers (EH-Rxs), which are allowed to harvest energy but not to decode information from the signals sent by transmitters. In practice, channel state information (CSI) is sometimes inaccurate due to the time-varying nature of wireless channels and quantization errors in the CSI feedback. Furthermore, the CSI on the EH link between transmitters and EH-Rxs is likely to be more inaccurate than the CSI on the signal link when the EH-Rxs act deceitfully, so the level of uncertainty in the CSI can be different for the signal link and the EH link. In the presence of this heterogeneity of channel uncertainty, a deep learning (DL)-based TPC strategy is proposed to maintain the confidentiality of information at the untrusted EH-Rxs whilst guaranteeing that the required energy can still be harvested. In particular, the modified CSI for each signal and EH link, which is generated from the estimated CSI through the addition of random noise, is taken into account in the training of a deep neural network (DNN) to compensate appropriately for the heterogeneous errors in the CSI. Simulation results confirm that the proposed scheme provides a good approximation to the optimal TPC strategy, even in the presence of severely heterogeneous channel errors, such that it outperforms conventional baseline schemes and shows a near-optimal secrecy performance whilst achieving a significantly lower computation time. IEEE
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