Detailed Information

Cited 8 time in webofscience Cited 8 time in scopus
Metadata Downloads

Deep-Learning-Assisted Wireless-Powered Secure Communications With Imperfect Channel State Information

Authors
Lee, WoongsupLee, KisongQuek, Tony Q. S.
Issue Date
1-Jul-2022
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Keywords
Internet of Things; Optimization; Resource management; Iterative methods; Deep learning; Training; Receivers; Channel error; deep learning (DL); energy harvesting (EH); nonconvex optimization; secure communication; transmit power control (TPC)
Citation
IEEE INTERNET OF THINGS JOURNAL, v.9, no.13, pp 11464 - 11476
Pages
13
Indexed
SCIE
SCOPUS
Journal Title
IEEE INTERNET OF THINGS JOURNAL
Volume
9
Number
13
Start Page
11464
End Page
11476
URI
https://scholarworks.gnu.ac.kr/handle/sw.gnu/1065
DOI
10.1109/JIOT.2021.3128936
ISSN
2327-4662
Abstract
In this article, we consider a practical scenario for secure wireless-powered communication in the presence of imperfect channel state information (CSI) with simultaneous energy harvesting, in which it is required to keep information secret from an untrusted energy receiver allowed only to harvest energy from the transmitted signals. We aim to find the robust transmit power control (TPC) strategy to maximize the secrecy rate whilst ensuring the spectral efficiency of transceiver pairs and the amount of energy harvested by the energy receiver, even when the CSI is inaccurate. To deal with the nonconvexity of the formulated optimization problem, we first derive a suboptimal form of TPC in an iterative manner by adopting dual methods. In order to overcome the drawbacks of the conventional optimization-based approach regarding the suboptimality of performance and requiring long computation time, we devise a deep learning (DL)-assisted TPC as an alternative means of deriving the TPC. In the considered DL-assisted TPC, a deep neural network (DNN) is trained to compensate for the distortion caused by channel errors in an unsupervised manner. More specifically, artificially distorted CSI, which reflects the difference between actual and estimated CSI, is fed into the DNN during training and used to update the weights and biases of the proposed DNN using a bounded loss function, which allows a robust TPC strategy to be approximated by the DNN. Simulation results reveal the robustness of the proposed DL-assisted TPC against channel errors, such that it achieves a near-optimal performance with a lower computation time, even when the CSI is incorrect.
Files in This Item
There are no files associated with this item.
Appears in
Collections
해양과학대학 > 지능형통신공학과 > Journal Articles

qrcode

Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.

Altmetrics

Total Views & Downloads

BROWSE