OFDM-PON (Orthogonal Frequency Division Multiplexing-Passive Optical Network) physical layer encryption method based on three-dimensional Arnold transformation of conservative digital chaos
A technology of OFDM-PON and encryption method, which is applied in the field of optical communication encryption, can solve complex problems and achieve the effects of strong randomness, good security, and low peak-to-average ratio
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[0041] The present embodiment provides the OFDM-PON physical layer encryption method based on the three-dimensional Arnold transformation of conservative digital chaos, such as figure 1 shown, including steps:
[0042] S11. At the transmitting end, use the initial value of the conservative digital chaotic system to generate a chaotic sequence, add disturbance to the generated chaotic sequence, and expand it into several groups of chaotic sequences, process several groups of chaotic sequences with the principal component analysis algorithm PCA, and select the first principal a chaotic sequence of components;
[0043] S12. Control the parameters of the three-dimensional Arnold transformation by the chaotic sequence of the selected first principal component, and carry out the first layer of encryption to the OFDM signal;
[0044] S13. Randomly extracting a Frank sequence to generate a chaotic Frank matrix, performing a second layer of encryption on the OFDM signal, converting th...
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