Affiliation:
1. School of Information Engineering, Beijing Institute of Graphic Communication, Beijing 102600, China
2. School of Electronics and Information, Nanchang Institute of Technology, Nanchang 330044, China
3. School of Physics and Electronic Engineering, Fuyang Normal University, Fuyang 236037, China
Abstract
In this paper, we propose a camera projection approach to enhance the physical layer security of coherent optical orthogonal frequency division multiplexing (CO-OFDM) systems. The data are converted to the new location by the camera projection module in the encryption system, where the 5D hyperchaotic system provides the keys for the camera projection module. The simulated 16QAM CO-OFDM security system over 80 km SSMF is shown to provide a key space of about 9 × 1090 through the five-dimensional (5D) hyperchaotic system, making it impossible for eavesdroppers to obtain valid information, and the peak-to-average power ratio (PAPR) is reduced by about 0.8 dB.
Funder
R&D Program of Beijing Municipal Education Commission
general research project of Beijing Association of Higher Education
Research project on digital education in Beijing
Jiangxi Provincial Natural Science Foundation
Scientific Research Project of Fuyang Normal University
Anhui Education Department, University Natural Science Research Project of Anhui Province
Henan Key Laboratory of Visible Light Communications
Youth Excellence Project of Beijing Institute of Graphic Communication
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