Multi-Gbit/s optical phase chaos communications using a time-delayed optoelectronic oscillator with a three-wave interferometer nonlinearity

Oden, Jérémy; Lavrov, R.; Chembo, Yanne K.; Larger, Laurent

doi:10.1063/1.5007867

Cited by 27 publications

(6 citation statements)

References 62 publications

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“…To solve the problem of TDSs exposure in the electro-optical chaotic system, researchers have proposed many system schemes with different principles 18 – 22 Among them, the multiple feedback loop structure is a main method.…”

Section: Introductionmentioning

confidence: 99%

Electro-optical chaotic communication system based on additional chaotic phase-shift with time-delay signature concealment

Zhu,

Wang,

Zhang

2023

Opt. Eng.

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We propose and demonstrate an electro-optical chaotic communication system with additional chaotic phase-shift based on the mutual coupling structure. Under the condition of complete concealment of time-delayed signatures (TDSs), the key space of the system is greatly enhanced and highly reliable chaotic communication is finally realized. The additional-phase introduced by the new branch is nonlinearly superimposed on the phase generated by the chaotic signal of the original branch, which improves the complexity and aperiodicity of chaos. For security performance, the system only needs a very small feedback gain (i.e., β i ¼ 2.5) to conceal TDSs. Moreover, since the system has only one chaotic signal transmitted in the transmission link, it overcomes the exposure of TDSs caused by the cross-correlation characteristics between different links. At the same time, the system has strong synchronization robustness and can achieve high-quality communication when the parameters are well-matched. To sum up, the proposed system can effectively resist eavesdropping, which provides security for the physical layer of optical networks.

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Section: Introductionmentioning

confidence: 99%

Electro-optical chaotic communication system based on additional chaotic phase-shift with time-delay signature concealment

Zhu,

Wang,

Zhang

2023

Opt. Eng.

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“…How to correctly abstract information signal from noisy situation is important in secure communication. The traditional information signal extraction methods are based on time domain reconstructs phase space [12] or strange attractor characteristic [13]. These methods require a more complex condition and a large quantity of calculations.…”

Section: Introductionmentioning

confidence: 99%

A Novel Method of Realizing Stochastic Chaotic Secure Communication by Synchrosqueezed Wavelet Transform: The Finite-Time Case

Jia

2021

IEEE Access

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This paper is concerned with the finite-time stochastic synchronization of a chaotic system without linear term and its application in secure communication based on synchrosqueezed wavelet transform (SWT). In order to improve the anti-jamming ability of chaotic systems and forecast the synchronization time, proper controllers are designed to achieve finite-time stochastic synchronization for the chaotic system with random perturbation. Based on the proposed chaotic synchronization systems, we present secure communication scheme about secondary encryption to enhance the level of security. Moreover, a novel SWT algorithm is introduced to correctly recover information signals at the end of the scheme. The SWT based scheme can decompose the information signal into a set of intrinsic mode type (IMT) function components. Then, instantaneous frequency and instantaneous amplitude of each IMT component are calculated through Hilbert transform. Simulation results confirm that both the synchronization approach and the security communication scheme are effective. For multi-component signals with adjacent frequency, the accuracy of recovered signals by SWT based on our scheme is higher than that recovered by the other time-frequency denoising methods.

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“…In [36], a unified chaotic system and a hyperchaotic Rössler system with uncertain parameters were coupled, constrained and used as a new hyperchaotic system in a secure communication scheme. In [37], Oden, et al proposed a chaotic communication scheme based on a chaotic optical phase carrier generated with an optoelectronic oscillator with nonlinear time-delay feedback. In [38], Chen, et al initiated a systematic methodology for 6-D real domain chaos-based video encryption and decryption communications.…”

Section: Introductionmentioning

confidence: 99%

Design of a New Seven-Dimensional Hyperchaotic Circuit and Its Application in Secure Communication

Jing

Wang

et al. 2019

IEEE Access

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In the fields of physics, mathematics, communication, control, biology, etc., chaos is widely used, and it plays an important role in modern science and technology. In this paper, a new sevendimensional hyperchaotic system is proposed and some related features of the hyperchaotic system are analyzed, including equilibrium stability, dissipation, bifurcation and Lyapunov exponent. The results show that the proposed hyperchaotic system exhibits hyperchaotic, chaotic, quasi-periodic and periodic dynamic behaviors. The seven-dimensional hyperchaotic system is implemented through experiments, and the phase diagrams of the circuit simulation are consistent with those of the numerical simulation, which verifies the physical realization of the hyperchaotic system. In view of chaos in some important fields, such as communication security and complex systems, the seven-dimensional hyperchaotic system is applied to signal encryption and decryption circuit design. Firstly, the proposed seven-dimensional hyperchaotic system is scaled and transformed into a hyperchaotic system that is easy to implement. Then an improved chaotic circuit module design is adopted. Finally, the seven-dimensional hyperchaotic circuit is designed to form a hyperchaotic secure communication circuit. The electronic circuit realizes the confidential communication and its experimental results prove the effectiveness of the designed scheme.

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Multi-Gbit/s optical phase chaos communications using a time-delayed optoelectronic oscillator with a three-wave interferometer nonlinearity

Cited by 27 publications

References 62 publications

Electro-optical chaotic communication system based on additional chaotic phase-shift with time-delay signature concealment

Electro-optical chaotic communication system based on additional chaotic phase-shift with time-delay signature concealment

A Novel Method of Realizing Stochastic Chaotic Secure Communication by Synchrosqueezed Wavelet Transform: The Finite-Time Case

Design of a New Seven-Dimensional Hyperchaotic Circuit and Its Application in Secure Communication

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