A secure cooperative transmission of image super-resolution in wireless relay networks
Article
Duong, H., Phan, C., Vien, Q. and Nguyen, T. 2023. A secure cooperative transmission of image super-resolution in wireless relay networks. Electronics. 12 (18). https://doi.org/10.3390/electronics12183764
Type | Article |
---|---|
Title | A secure cooperative transmission of image super-resolution in wireless relay networks |
Authors | Duong, H., Phan, C., Vien, Q. and Nguyen, T. |
Abstract | The image transmission over wireless media experiences not only unavailable performance loss caused by the environment and hardware issues, but also information leakage to eavesdroppers who can overhear and attempt to recover the images. This paper proposes a secure cooperative relaying (SCR) protocol for the image communications in wireless relay networks (WRNs) where Alice sends high-resolution (HR) images to Bob with the assistance of a relaying user named Relay, and in the presence of an eavesdropper named Eve. In order to enhance the security of the image communications, random linear network coding (RLNC) is employed at both Alice and Relay to conceal the original images from Eve with RLNC coefficient matrices and reference images in the shared image datastore. Furthermore, the original HR images are downscaled at Alice to save transmission bandwidth and image super-resolution (ISR) is adopted at Bob due to its capability to recover the HR images from their low-resolution (LR) version, while still maintaining the image quality. In the proposed SCR protocol, Bob can decode both the original images transmitted from Alice over the direct link and the images forwarded by Relay over the relaying links. Simulation results show that the SCR protocol achieves a considerably higher performance at Bob than at Eve since Eve does not know the coefficient matrices and reference images used at Alice and Relay for the RLNC. The SCR protocol is also shown to outperform the counterpart secure direct transmission protocol without the relaying links and secure relaying transmission without the direct link. Additionally, an increased scaling factor can save the transmission bandwidth for a slight change in the image quality. Moreover, the impacts of direct, relaying and wiretap links are evaluated, verifying the effectiveness of the SCR protocol with the employment of Relay to assist the image communications between Alice and Bob in the WRNs. |
Keywords | image communication; deep learning; image super-resolution; random linear network coding; cooperative communications; wireless relay networks; Electrical and Electronic Engineering; Computer Networks and Communications; Hardware and Architecture; Signal Processing; Control and Systems Engineering |
Sustainable Development Goals | 11 Sustainable cities and communities |
Middlesex University Theme | Sustainability |
Publisher | MDPI |
Journal | Electronics |
ISSN | |
Electronic | 2079-9292 |
Publication dates | |
Online | 06 Sep 2023 |
06 Sep 2023 | |
Publication process dates | |
Submitted | 13 Jul 2023 |
Accepted | 30 Aug 2023 |
Deposited | 04 Dec 2023 |
Output status | Published |
Publisher's version | License |
Digital Object Identifier (DOI) | https://doi.org/10.3390/electronics12183764 |
Web of Science identifier | WOS:001074675300001 |
Language | English |
https://repository.mdx.ac.uk/item/x271v
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