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Polarization sensitive array based physical-layer security

Polarization sensitive array based physical-layer security
Polarization sensitive array based physical-layer security
We propose a framework exploiting the polarization sensitive array ({PSA}) to improve the physical layer security of wireless communications. Specifically, the polarization difference among signals is utilized to improve the secrecy rate of wireless communications, especially when these signals are spatially indistinguishable. We firstly investigate the {PSA} based secure communications for point-to-point wireless systems from the perspectives of both total power minimization and secrecy rate maximization. We then apply the {PSA} based secure beamforming designs to relaying networks. The secrecy rate maximization for relaying networks is discussed in detail under both the perfect channel state information and the polarization sensitive array pointing error. In the later case, a robust scheme to achieve secure communications for relaying networks is proposed. Simulation results show that the proposed {PSA} based algorithms achieve lower total power consumption and better security performance compared to the conventional scalar array designs, especially under challenging environments where all received signals at destination are difficult to distinguish in the spatial domain.
0018-9545
3964-3981
Gong, Shiqi
7598f391-2154-4e52-ad90-0708722a6243
Xing, Chengwen
a5079381-4440-4615-9191-5899f79d704b
Chen, Sheng
9310a111-f79a-48b8-98c7-383ca93cbb80
Fei, Zesong
1523e506-ebec-420d-b491-da48dff3fb2c
Gong, Shiqi
7598f391-2154-4e52-ad90-0708722a6243
Xing, Chengwen
a5079381-4440-4615-9191-5899f79d704b
Chen, Sheng
9310a111-f79a-48b8-98c7-383ca93cbb80
Fei, Zesong
1523e506-ebec-420d-b491-da48dff3fb2c

Gong, Shiqi, Xing, Chengwen, Chen, Sheng and Fei, Zesong (2018) Polarization sensitive array based physical-layer security. IEEE Transactions on Vehicular Technology, 67 (5), 3964-3981. (doi:10.1109/TVT.2017.2773710).

Record type: Article

Abstract

We propose a framework exploiting the polarization sensitive array ({PSA}) to improve the physical layer security of wireless communications. Specifically, the polarization difference among signals is utilized to improve the secrecy rate of wireless communications, especially when these signals are spatially indistinguishable. We firstly investigate the {PSA} based secure communications for point-to-point wireless systems from the perspectives of both total power minimization and secrecy rate maximization. We then apply the {PSA} based secure beamforming designs to relaying networks. The secrecy rate maximization for relaying networks is discussed in detail under both the perfect channel state information and the polarization sensitive array pointing error. In the later case, a robust scheme to achieve secure communications for relaying networks is proposed. Simulation results show that the proposed {PSA} based algorithms achieve lower total power consumption and better security performance compared to the conventional scalar array designs, especially under challenging environments where all received signals at destination are difficult to distinguish in the spatial domain.

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Accepted/In Press date: 10 November 2017
e-pub ahead of print date: 15 November 2017
Published date: 14 May 2018

Identifiers

Local EPrints ID: 420901
URI: http://eprints.soton.ac.uk/id/eprint/420901
ISSN: 0018-9545
PURE UUID: 8a7576a8-c830-4c4c-b05d-1fed4713fb94

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Date deposited: 18 May 2018 16:30
Last modified: 06 Oct 2020 16:52

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