Physical Layer Key Generation Scheme Through Scrambling the Correlated Eavesdropping Channel

In this paper, we investigate the physical layer key generation scheme in most realistic scenarios where the correlation between the legitimate channel and the eavesdropping channel is considered. To degrade the correlation and improve the key generation capacity, a physical layer key generation sch...

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Main Authors: Yajun Chen, Kaizhi Huang, You Zhou, Keming Ma, Henglei Jin, Xiaoming Xu
Format: Article
Language:English
Published: IEEE 2020-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9028123/
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author Yajun Chen
Kaizhi Huang
You Zhou
Keming Ma
Henglei Jin
Xiaoming Xu
author_facet Yajun Chen
Kaizhi Huang
You Zhou
Keming Ma
Henglei Jin
Xiaoming Xu
author_sort Yajun Chen
collection DOAJ
description In this paper, we investigate the physical layer key generation scheme in most realistic scenarios where the correlation between the legitimate channel and the eavesdropping channel is considered. To degrade the correlation and improve the key generation capacity, a physical layer key generation scheme through scrambling the correlated eavesdropping channel is proposed. Firstly, the artificial noise is sent superimposed over pilots from the legitimate transmitter to confuse the eavesdropper. The artificial noise precoding matrix is randomly selected from decomposed unitary matrices orthogonal to the legitimate channel resulting in having no effect on legitimate channel. Then, the vector quantization algorithm and the winnow algorithm are respectively applied to quantize the channel characteristic and negotiate the generated random sequences to generate the final key. To further support the performance, we next present a power optimization scheme allocated to sending the artificial noise to maximize the generated key capacity under the total transmission power constraint. Finally, simulation results are presented to validate the effectiveness of our proposed scheme.
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spelling doaj.art-cd4e8eaf203443ef8d36905a3ebe9e3a2022-12-21T22:27:48ZengIEEEIEEE Access2169-35362020-01-018489824899010.1109/ACCESS.2020.29795159028123Physical Layer Key Generation Scheme Through Scrambling the Correlated Eavesdropping ChannelYajun Chen0https://orcid.org/0000-0001-7152-6542Kaizhi Huang1https://orcid.org/0000-0002-7084-3826You Zhou2Keming Ma3Henglei Jin4https://orcid.org/0000-0002-5945-669XXiaoming Xu5National Digital Switching System Engineering and Technological Research Center, Zhengzhou, ChinaNational Digital Switching System Engineering and Technological Research Center, Zhengzhou, ChinaNational Digital Switching System Engineering and Technological Research Center, Zhengzhou, ChinaNational Digital Switching System Engineering and Technological Research Center, Zhengzhou, ChinaNational Digital Switching System Engineering and Technological Research Center, Zhengzhou, ChinaNational Digital Switching System Engineering and Technological Research Center, Zhengzhou, ChinaIn this paper, we investigate the physical layer key generation scheme in most realistic scenarios where the correlation between the legitimate channel and the eavesdropping channel is considered. To degrade the correlation and improve the key generation capacity, a physical layer key generation scheme through scrambling the correlated eavesdropping channel is proposed. Firstly, the artificial noise is sent superimposed over pilots from the legitimate transmitter to confuse the eavesdropper. The artificial noise precoding matrix is randomly selected from decomposed unitary matrices orthogonal to the legitimate channel resulting in having no effect on legitimate channel. Then, the vector quantization algorithm and the winnow algorithm are respectively applied to quantize the channel characteristic and negotiate the generated random sequences to generate the final key. To further support the performance, we next present a power optimization scheme allocated to sending the artificial noise to maximize the generated key capacity under the total transmission power constraint. Finally, simulation results are presented to validate the effectiveness of our proposed scheme.https://ieeexplore.ieee.org/document/9028123/Physical layer key generationchannel correlationeavesdropping key generation capacityartificial noisechannel scrambling
spellingShingle Yajun Chen
Kaizhi Huang
You Zhou
Keming Ma
Henglei Jin
Xiaoming Xu
Physical Layer Key Generation Scheme Through Scrambling the Correlated Eavesdropping Channel
IEEE Access
Physical layer key generation
channel correlation
eavesdropping key generation capacity
artificial noise
channel scrambling
title Physical Layer Key Generation Scheme Through Scrambling the Correlated Eavesdropping Channel
title_full Physical Layer Key Generation Scheme Through Scrambling the Correlated Eavesdropping Channel
title_fullStr Physical Layer Key Generation Scheme Through Scrambling the Correlated Eavesdropping Channel
title_full_unstemmed Physical Layer Key Generation Scheme Through Scrambling the Correlated Eavesdropping Channel
title_short Physical Layer Key Generation Scheme Through Scrambling the Correlated Eavesdropping Channel
title_sort physical layer key generation scheme through scrambling the correlated eavesdropping channel
topic Physical layer key generation
channel correlation
eavesdropping key generation capacity
artificial noise
channel scrambling
url https://ieeexplore.ieee.org/document/9028123/
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AT kemingma physicallayerkeygenerationschemethroughscramblingthecorrelatedeavesdroppingchannel
AT hengleijin physicallayerkeygenerationschemethroughscramblingthecorrelatedeavesdroppingchannel
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