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Optical Engineering

High security chaotic multiple access scheme for visible light communication systems with advanced encryption standard interleaving
Author(s): Junchao Qiu; Lin Zhang; Diyang Li; Xingcheng Liu
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Paper Abstract

Chaotic sequences can be applied to realize multiple user access and improve the system security for a visible light communication (VLC) system. However, since the map patterns of chaotic sequences are usually well known, eavesdroppers can possibly derive the key parameters of chaotic sequences and subsequently retrieve the information. We design an advanced encryption standard (AES) interleaving aided multiple user access scheme to enhance the security of a chaotic code division multiple access-based visible light communication (C-CDMA-VLC) system. We propose to spread the information with chaotic sequences, and then the spread information is interleaved by an AES algorithm and transmitted over VLC channels. Since the computation complexity of performing inverse operations to deinterleave the information is high, the eavesdroppers in a high speed VLC system cannot retrieve the information in real time; thus, the system security will be enhanced. Moreover, we build a mathematical model for the AES-aided VLC system and derive the theoretical information leakage to analyze the system security. The simulations are performed over VLC channels, and the results demonstrate the effectiveness and high security of our presented AES interleaving aided chaotic CDMA-VLC system.

Paper Details

Date Published: 28 June 2016
PDF: 7 pages
Opt. Eng. 55(6) 066121 doi: 10.1117/1.OE.55.6.066121
Published in: Optical Engineering Volume 55, Issue 6
Show Author Affiliations
Junchao Qiu, Sun Yat-Sen Univ. (China)
Lin Zhang, Sun Yat-Sen Univ. (China)
SYSU-CMU Shunde International Joint Research Institute (China)
Diyang Li, Sun Yat-Sen Univ. (China)
Xingcheng Liu, Sun Yat-Sen Univ. (China)

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