Title
Multitask learning-based secure transmission for reconfigurable intelligent surface-aided wireless communications
Abstract
Reconfigurable intelligent surfaces (RISs) represent a highly promising technology that enhances the capacity and coverage of wireless networks by intelligently reconfiguring the wireless propagation environment in highly advanced wireless communications. The objective of this study is to solve the problem of secrecy rate maximization for multiple RIS-aided millimeter-wave communications by jointly optimizing the active RISs and the RIS phase shifts of the considered system. For this nonconvex problem, we propose multitask learning in a deep neural network to predict the RIS phase shift and active RISs. Numerical results based on realistic, three-dimensional, ray-tracing simulations show that the proposed solution can predict the RIS phase and active RIS with an accuracy rate > 96%. These results confirm the viability of RIS-aided secure wireless communications.
Year
DOI
Venue
2022
10.1016/j.icte.2022.05.003
ICT Express
Keywords
DocType
Volume
Deep neural network,Multitask learning,Reconfigurable intelligent surface,Secrecy rate
Journal
8
Issue
ISSN
Citations 
3
2405-9595
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Sangmi Moon100.68
Young-Hwan You200.68
Cheol Hong Kim37324.39
Intae Hwang400.68