Secure OFDM with Peak-to-Average Power Ratio Reduction Using the Spectral Phase of Chaotic Signals

In this paper, a new physical layer security technique is proposed for Orthogonal Frequency Division Multiplexing (OFDM) communication systems. The security is achieved by modifying the OFDM symbols using the phase information of chaos in the frequency spectrum. In addition, this scheme reduces the...

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Autores principales:	Mohamad F. Haroun, T. Aaron Gulliver
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	secure OFDM communication chaotic phase sequence PAPR reduction Science Q Astrophysics QB460-466 Physics QC1-999
Acceso en línea:	https://doaj.org/article/f2a2a37c08514fca8635605d8e4ebf68
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id	oai:doaj.org-article:f2a2a37c08514fca8635605d8e4ebf68
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spelling	oai:doaj.org-article:f2a2a37c08514fca8635605d8e4ebf682021-11-25T17:29:09ZSecure OFDM with Peak-to-Average Power Ratio Reduction Using the Spectral Phase of Chaotic Signals10.3390/e231113801099-4300https://doaj.org/article/f2a2a37c08514fca8635605d8e4ebf682021-10-01T00:00:00Zhttps://www.mdpi.com/1099-4300/23/11/1380https://doaj.org/toc/1099-4300In this paper, a new physical layer security technique is proposed for Orthogonal Frequency Division Multiplexing (OFDM) communication systems. The security is achieved by modifying the OFDM symbols using the phase information of chaos in the frequency spectrum. In addition, this scheme reduces the Peak to Average Power Ratio (PAPR), which is one of the major drawbacks of OFDM. The Selected Mapping (SLM) technique for PAPR reduction is employed to exploit the random characteristics of chaotic sequences. The reduction with this algorithm is shown to be similar to that of other SLM schemes, but it has lower computational complexity and side information does not have to be sent to the receiver. The security of this technique stems from the noise like behavior of chaotic sequences and their dependence on the initial conditions of the chaotic generator (which are used as the key). Even a slight difference in the initial conditions will result in a different phase sequence, which prevents an eavesdropper from recovering the transmitted OFDM symbols.Mohamad F. HarounT. Aaron GulliverMDPI AGarticlesecure OFDM communicationchaotic phase sequencePAPR reductionScienceQAstrophysicsQB460-466PhysicsQC1-999ENEntropy, Vol 23, Iss 1380, p 1380 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	secure OFDM communication chaotic phase sequence PAPR reduction Science Q Astrophysics QB460-466 Physics QC1-999
spellingShingle	secure OFDM communication chaotic phase sequence PAPR reduction Science Q Astrophysics QB460-466 Physics QC1-999 Mohamad F. Haroun T. Aaron Gulliver Secure OFDM with Peak-to-Average Power Ratio Reduction Using the Spectral Phase of Chaotic Signals
description	In this paper, a new physical layer security technique is proposed for Orthogonal Frequency Division Multiplexing (OFDM) communication systems. The security is achieved by modifying the OFDM symbols using the phase information of chaos in the frequency spectrum. In addition, this scheme reduces the Peak to Average Power Ratio (PAPR), which is one of the major drawbacks of OFDM. The Selected Mapping (SLM) technique for PAPR reduction is employed to exploit the random characteristics of chaotic sequences. The reduction with this algorithm is shown to be similar to that of other SLM schemes, but it has lower computational complexity and side information does not have to be sent to the receiver. The security of this technique stems from the noise like behavior of chaotic sequences and their dependence on the initial conditions of the chaotic generator (which are used as the key). Even a slight difference in the initial conditions will result in a different phase sequence, which prevents an eavesdropper from recovering the transmitted OFDM symbols.
format	article
author	Mohamad F. Haroun T. Aaron Gulliver
author_facet	Mohamad F. Haroun T. Aaron Gulliver
author_sort	Mohamad F. Haroun
title	Secure OFDM with Peak-to-Average Power Ratio Reduction Using the Spectral Phase of Chaotic Signals
title_short	Secure OFDM with Peak-to-Average Power Ratio Reduction Using the Spectral Phase of Chaotic Signals
title_full	Secure OFDM with Peak-to-Average Power Ratio Reduction Using the Spectral Phase of Chaotic Signals
title_fullStr	Secure OFDM with Peak-to-Average Power Ratio Reduction Using the Spectral Phase of Chaotic Signals
title_full_unstemmed	Secure OFDM with Peak-to-Average Power Ratio Reduction Using the Spectral Phase of Chaotic Signals
title_sort	secure ofdm with peak-to-average power ratio reduction using the spectral phase of chaotic signals
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/f2a2a37c08514fca8635605d8e4ebf68
work_keys_str_mv	AT mohamadfharoun secureofdmwithpeaktoaveragepowerratioreductionusingthespectralphaseofchaoticsignals AT taarongulliver secureofdmwithpeaktoaveragepowerratioreductionusingthespectralphaseofchaoticsignals
_version_	1718412322578366464

Secure OFDM with Peak-to-Average Power Ratio Reduction Using the Spectral Phase of Chaotic Signals

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