RIS-aided secure millimeter-wave communication under RF-chain impairments
RIS-aided secure millimeter-wave communication under RF-chain impairments
The effects of hardware impairments (HWIs) on the secrecy performance of a reconfigurable intelligent surface (RIS)-assisted millimeter wave system are investigated, where a multiantenna base station (BS) transmits confidential messages to a single-antenna mobile user (MU) in the presence of a singleantenna passive eavesdropper (Eve). Artificial noise (AN)-aided transmission by the BS is proposed for improving the achievable secrecy rate. As the first step, we construct a system model in the absence of HWIs. For this case, we present optimal solutions for the signal and AN powers, the beamforming design at the BS, and the phase shifts of the RIS elements. Then closed-form expressions are derived for the cumulative distribution functions of the signal-to-noise-ratios experienced at the legitimate and eavesdropping nodes. Finally, a compact solution is presented for the ergodic secrecy rate (ESR) performance. At the next step, we extend our designs and analysis by considering the HWIs of the radio-frequency (RF) modules of the BS, MU and Eve. Our results highlight the detrimental impact of HWIs on the achievable ESR. Finally, we find that the ESR can be further increased by beneficially distributing the tolerable HWIs between the transmission and reception RF chains.
Array signal processing, Hardware, Millimeter wave communication, Physical layer security, Quantization (signal), Radio frequency, Transceivers, Wireless communication, hardware impairments, intelligent reflecting surface
1-13
Ragheb, Mohammad
a9962925-07a2-4360-bf68-e73f81dfd64b
Kuhestani, Ali
e0d2fc3e-533f-4763-a7b0-17c96cf0bc26
Kazemi, Mohammad
69231b26-ae78-4bee-b91a-90806fd22553
Ahmadi, Hossein
e880c164-ceb8-43a4-bac0-af044f896737
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Ragheb, Mohammad
a9962925-07a2-4360-bf68-e73f81dfd64b
Kuhestani, Ali
e0d2fc3e-533f-4763-a7b0-17c96cf0bc26
Kazemi, Mohammad
69231b26-ae78-4bee-b91a-90806fd22553
Ahmadi, Hossein
e880c164-ceb8-43a4-bac0-af044f896737
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Ragheb, Mohammad, Kuhestani, Ali, Kazemi, Mohammad, Ahmadi, Hossein and Hanzo, Lajos
(2023)
RIS-aided secure millimeter-wave communication under RF-chain impairments.
IEEE Transactions on Vehicular Technology, .
(doi:10.1109/TVT.2023.3307451).
Abstract
The effects of hardware impairments (HWIs) on the secrecy performance of a reconfigurable intelligent surface (RIS)-assisted millimeter wave system are investigated, where a multiantenna base station (BS) transmits confidential messages to a single-antenna mobile user (MU) in the presence of a singleantenna passive eavesdropper (Eve). Artificial noise (AN)-aided transmission by the BS is proposed for improving the achievable secrecy rate. As the first step, we construct a system model in the absence of HWIs. For this case, we present optimal solutions for the signal and AN powers, the beamforming design at the BS, and the phase shifts of the RIS elements. Then closed-form expressions are derived for the cumulative distribution functions of the signal-to-noise-ratios experienced at the legitimate and eavesdropping nodes. Finally, a compact solution is presented for the ergodic secrecy rate (ESR) performance. At the next step, we extend our designs and analysis by considering the HWIs of the radio-frequency (RF) modules of the BS, MU and Eve. Our results highlight the detrimental impact of HWIs on the achievable ESR. Finally, we find that the ESR can be further increased by beneficially distributing the tolerable HWIs between the transmission and reception RF chains.
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Accepted/In Press date: 18 August 2023
e-pub ahead of print date: 22 August 2023
Additional Information:
Publisher Copyright:
IEEE
Keywords:
Array signal processing, Hardware, Millimeter wave communication, Physical layer security, Quantization (signal), Radio frequency, Transceivers, Wireless communication, hardware impairments, intelligent reflecting surface
Identifiers
Local EPrints ID: 481344
URI: http://eprints.soton.ac.uk/id/eprint/481344
ISSN: 0018-9545
PURE UUID: 6dda555e-ad2f-47e6-9161-69ca02ce65b1
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Date deposited: 23 Aug 2023 17:01
Last modified: 18 Mar 2024 02:36
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Contributors
Author:
Mohammad Ragheb
Author:
Ali Kuhestani
Author:
Mohammad Kazemi
Author:
Hossein Ahmadi
Author:
Lajos Hanzo
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