Secure channel estimation model for cognitive radio network physical layer security using two-level shared key authentication

Abstract Physical Layer Security (PLS) in Cognitive Radio Networks (CRN) improves the confidentiality, availability, and integrity of the external communication between the devices/ users. The security models for sensing and beamforming reduce the impact of adversaries such as eavesdroppers in the s...

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Main Authors: K. Saravanan, K. B. Gurumoorthy, Allwin Devaraj Stalin, Om Prakash Kumar
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:Scientific Reports
Subjects:
Online Access:https://doi.org/10.1038/s41598-025-86165-x
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author K. Saravanan
K. B. Gurumoorthy
Allwin Devaraj Stalin
Om Prakash Kumar
author_facet K. Saravanan
K. B. Gurumoorthy
Allwin Devaraj Stalin
Om Prakash Kumar
author_sort K. Saravanan
collection DOAJ
description Abstract Physical Layer Security (PLS) in Cognitive Radio Networks (CRN) improves the confidentiality, availability, and integrity of the external communication between the devices/ users. The security models for sensing and beamforming reduce the impact of adversaries such as eavesdroppers in the signal processing layer. To such an extent, this article introduces a Secure Channel Estimation Model (SCEM) using Channel State Information (CSI) and Deep Learning (DL) to improve the PLS. In this proposed model, the CSI is exploited to evaluate the channel utilization and actual capacity availability throughout the allocation intervals. The change in channel capacity and utilization augments the need for security through 2-level key shared authentication. The deep learning algorithm verifies the authentication completeness for maximum channel capacity utilization irrespective of adversary interference. This verification follows mutual authentication between the primary and secondary users sharing the maximum capacity channel with high secrecy. The learning monitors the outage secrecy rates to verify failed allocations such that the replacement for allocation is pursued. Thus, the physical layer security between different user categories is administered through maximum CSI exploitation with high beamforming abilities. The proposed model leverages the secrecy rate by 10.77% and the probability of detection by 15.01% and reduces the interference rate by 11.07% for the varying transmit powers.
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spelling doaj-art-528cd6c0d3eb430cb1edb9e479c0c4df2025-01-26T12:30:24ZengNature PortfolioScientific Reports2045-23222025-01-0115111710.1038/s41598-025-86165-xSecure channel estimation model for cognitive radio network physical layer security using two-level shared key authenticationK. Saravanan0K. B. Gurumoorthy1Allwin Devaraj Stalin2Om Prakash Kumar3Department of Mechatronics Engineering, KPR Institute of Engineering and TechnologyDepartment of Electronics and Communication Engineering, KPR Institute of Engineering and TechnologyDepartment of Electronics and Communication Engineering, Francis Xavier Engineering CollegeDepartment of Electronics and Communication Engineering, Manipal Institute of Technology, Manipal Academy of Higher EducationAbstract Physical Layer Security (PLS) in Cognitive Radio Networks (CRN) improves the confidentiality, availability, and integrity of the external communication between the devices/ users. The security models for sensing and beamforming reduce the impact of adversaries such as eavesdroppers in the signal processing layer. To such an extent, this article introduces a Secure Channel Estimation Model (SCEM) using Channel State Information (CSI) and Deep Learning (DL) to improve the PLS. In this proposed model, the CSI is exploited to evaluate the channel utilization and actual capacity availability throughout the allocation intervals. The change in channel capacity and utilization augments the need for security through 2-level key shared authentication. The deep learning algorithm verifies the authentication completeness for maximum channel capacity utilization irrespective of adversary interference. This verification follows mutual authentication between the primary and secondary users sharing the maximum capacity channel with high secrecy. The learning monitors the outage secrecy rates to verify failed allocations such that the replacement for allocation is pursued. Thus, the physical layer security between different user categories is administered through maximum CSI exploitation with high beamforming abilities. The proposed model leverages the secrecy rate by 10.77% and the probability of detection by 15.01% and reduces the interference rate by 11.07% for the varying transmit powers.https://doi.org/10.1038/s41598-025-86165-xCognitive radio networksCSIDeep learningPhysical layer securityShared authentication
spellingShingle K. Saravanan
K. B. Gurumoorthy
Allwin Devaraj Stalin
Om Prakash Kumar
Secure channel estimation model for cognitive radio network physical layer security using two-level shared key authentication
Scientific Reports
Cognitive radio networks
CSI
Deep learning
Physical layer security
Shared authentication
title Secure channel estimation model for cognitive radio network physical layer security using two-level shared key authentication
title_full Secure channel estimation model for cognitive radio network physical layer security using two-level shared key authentication
title_fullStr Secure channel estimation model for cognitive radio network physical layer security using two-level shared key authentication
title_full_unstemmed Secure channel estimation model for cognitive radio network physical layer security using two-level shared key authentication
title_short Secure channel estimation model for cognitive radio network physical layer security using two-level shared key authentication
title_sort secure channel estimation model for cognitive radio network physical layer security using two level shared key authentication
topic Cognitive radio networks
CSI
Deep learning
Physical layer security
Shared authentication
url https://doi.org/10.1038/s41598-025-86165-x
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