Skip to main content

Research Repository

Advanced Search

A Unified Rate-Splitting Framework for Secure Spectrum Sharing via Joint Precoding Optimization

Li, D.; Yang, Z.; Zhao, N.; Chen, Y.; Wu, Z.; Li, Y.

A Unified Rate-Splitting Framework for Secure Spectrum Sharing via Joint Precoding Optimization Thumbnail


Authors

D. Li

Z. Yang

N. Zhao

Z. Wu

Y. Li



Abstract

To handle the security problem of cognitive radio (CR) systems, secondary users (SUs) are able to be designed to assist the primary user (PU) in secure transmission. To realize the spectrum sharing among CR users, we adopt the rate-splitting multiple access (RSMA) properly, with non-orthogonal multiple access (NOMA) and space division multiple access (SDMA) as its special cases. In this paper, we set up a unified ratesplitting framework to guarantee the safe spectrum sharing through multiple multi-access strategies, without the knowledge of wiretap channels. The precoding vectors at the transmitter are conjointly designed to boost the transmission of common stream, which is from both PU and SU. Besides, the private stream of the downlink CR system can be well secreted in the high-power common signal. As for NOMA and SDMA, when the message of SU is regarded as the friendly jamming signal, the security transmission requirement of PU can be similarly guaranteed via precoding design. Simulations validate that the rate-splitting framework we established can be effective in ensuring the spectrum sharing security for the secure users through RSMA, and the security for NOMA and SDMA is also able to be promoted through adjusting our designed framework.

Citation

Li, D., Yang, Z., Zhao, N., Chen, Y., Wu, Z., & Li, Y. (2023). A Unified Rate-Splitting Framework for Secure Spectrum Sharing via Joint Precoding Optimization. IEEE Systems Journal, 17(4), 5580-5591. https://doi.org/10.1109/jsyst.2023.3254603

Journal Article Type Article
Acceptance Date Mar 6, 2023
Online Publication Date Mar 22, 2023
Publication Date 2023-12
Deposit Date Mar 10, 2023
Publicly Available Date Mar 10, 2023
Journal IEEE Systems Journal
Print ISSN 1932-8184
Electronic ISSN 1937-9234
Publisher Institute of Electrical and Electronics Engineers
Peer Reviewed Peer Reviewed
Volume 17
Issue 4
Pages 5580-5591
DOI https://doi.org/10.1109/jsyst.2023.3254603
Public URL https://durham-repository.worktribe.com/output/1178650

Files

Accepted Journal Article (12.6 Mb)
PDF

Copyright Statement
© 2023 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.





You might also like



Downloadable Citations