Random Shifting Intelligent Reflecting Surface for OTP Encrypted Data Transmission

In this paper, we propose a novel encrypted data transmission scheme using an intelligent reflecting surface (IRS) to generate secret keys in wireless communication networks. We show that perfectly secure one-time pad (OTP) communications can be established by using a simple random phase shifting of...

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Hauptverfasser: Ji, Zijie, Yeoh, Phee Lep, Chen, Gaojie, Pan, Cunhua, Zhang, Yan, He, Zunwen, Yin, Hao, Li, Yonghui
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Yeoh, Phee Lep
Chen, Gaojie
Pan, Cunhua
Zhang, Yan
He, Zunwen
Yin, Hao
Li, Yonghui
description In this paper, we propose a novel encrypted data transmission scheme using an intelligent reflecting surface (IRS) to generate secret keys in wireless communication networks. We show that perfectly secure one-time pad (OTP) communications can be established by using a simple random phase shifting of the IRS elements. To maximize the secure transmission rate, we design an optimal time slot allocation algorithm for the IRS secret key generation and the encrypted data transmission phases. Moreover, a theoretical expression of the key generation rate is derived based on Poisson point process (PPP) for the practical scenario when eavesdroppers' channel state information (CSI) is unavailable. Simulation results show that employing our IRS-based scheme can significantly improve the encrypted data transmission performance for a wide-range of wireless channel gains and system parameters.
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title Random Shifting Intelligent Reflecting Surface for OTP Encrypted Data Transmission
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