High-security chaotic dynamical enhanced strategy based on reservoir computing

In this paper, we propose a high-security chaotic dynamical enhanced strategy based on a nonlinear dynamical enhanced chaotic system generated by reservoir computing (RC). The proposed system is applied to an orthogonal frequency division multiplexed passive optical network (OFDM-PON), which gets more complex chaotic behavior by using Sine-Henon cascade mapping (S-Henon). RC generates the chaotic sequences that are used to produce the masking vectors to encrypt the constellation and subcarriers, which can resist the degradation of chaotic dynamics.