کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5449317 1512526 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Secure Image Transmission over DFT-precoded OFDM-VLC systems based on Chebyshev Chaos scrambling
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Secure Image Transmission over DFT-precoded OFDM-VLC systems based on Chebyshev Chaos scrambling
چکیده انگلیسی
This paper proposes a physical layer image secure transmission scheme for discrete Fourier transform (DFT) precoded OFDM-based visible light communication systems by using Chebyshev chaos maps. In the proposed scheme, 256 subcarriers and QPSK modulation are employed. The transmitted digital signal of the image is encrypted with a Chebyshev chaos sequence. The encrypted signal is then transformed by a DFT precoding matrix to reduce the PAPR of the OFDM signal. After that, the encrypted and DFT-precoded OFDM are transmitted over a VLC channel. The simulation results show that the proposed image security transmission scheme can not only protect the DFT-precoded OFDM-based VLC from eavesdroppers but also improve BER performance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 397, 15 August 2017, Pages 84-90
نویسندگان
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