NDLI: Directional modulation based on chaos scrambling and artificial noise for physical layer security enhancement

Content Provider	IET Digital Library
Author	Liu, Feng Xie, Jian Zhang, Wei Wang, Ling Wang, Yuexian
Abstract	Directional modulation (DM), as an emerging promising physical layer security (PLS) transmission technique for wireless communications, has attracted much attention over the past decade. It endows transmitters the ability to directly transmit the confidential messages to legitimate receivers along with pre-specified directions while distorting signal waveform signatures projected along all other spatial directions to guarantee the security of information transmission. Traditional DM designs are based on the assumption that eavesdroppers (Eves) and legitimate users (LUs) are in different directions. Nevertheless, it is not always the scenario in practical applications, as it is possible that Eves and LUs are in the same directions or even at the same positions, which results in that signals received by Eves will be approximately the same as LUs'. To address this problem, the chaos scrambling (CS) technique is employed in this paper. A DM technique based on CS and artificial noise (AN) is proposed for PLS enhancement. The symbol error rate, secrecy rate, and robustness of the proposed CS-AN-aided scheme are analysed and simulated. Simulation results show the effectiveness of the proposed method and the PLS can also be guaranteed even if Eves are aligning with the desired directions or very close to the LUs.
Starting Page	3307
Ending Page	3316
Page Count	10
ISSN	17518628
Volume Number	13
e-ISSN	17518636
Issue Number	Issue 19, Dec (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/13/19
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2019.0459
Journal	IET Communications
Publisher Date	2019-08-29
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Artificial Noise Chaos Scrambling Chaotic Communication Confidential Messages Cryptography CS Technique CS-AN-aided Scheme Data Security Directional Modulation DM Technique Eavesdroppers Eves Information Transmission Legitimate Receiver Legitimate User LUs Message Authentication Modulation Physical Layer Security Enhancement Physical Layer Security Transmission Technique PLS Enhancement Radio Communication Radio Link And Equipment Secrecy Rate Signal Processing Signal Processing And Detection Signal Waveform Signatures Spatial Directions Symbol Error Rate Telecommunication Security Waveform Analysis Wireless Communication
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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