Results 21 to 30 of about 16,428 (260)
A Class of Quadratic Polynomial Chaotic Maps and its Application in Cryptography
IEEE Access, 2019 At present, the probability density of most chaotic systems is unknown, and the statistical characteristics of chaotic sequences cannot be described by the probability density of chaotic maps. This paper constructs a class of quadratic polynomial chaotic
Shuqin Zhu +3 more
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A Double-Layer Image Encryption Scheme Based on Chaotic Maps and DNA Strand Displacement
Journal of Chemistry, 2022 The image encryption schemes combining chaotic maps, DNA coding, and DNA sequence operation can effectively protect the image. In this paper, a double-layer image encryption scheme is proposed by combining chaotic maps with DNA strand displacement (DSD).
Zhen Tang +5 more
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Chaotic mixing in a torus map [PDF]
Chaos: An Interdisciplinary Journal of Nonlinear Science, 2003 The advection and diffusion of a passive scalar is investigated for a map of the 2-torus. The map is chaotic, and the limit of almost-uniform stretching is considered. This allows an analytic understanding of the transition from a phase of constant scalar variance (for short times) to exponential decay (for long times). This transition is embodied in a
Thiffeault, JL, Childress, S
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Chaotically driven sigmoidal maps [PDF]
Stochastics and Dynamics, 2017 We consider skew product dynamical systems [Formula: see text] with a (generalized) baker transformation [Formula: see text] at the base and uniformly bounded increasing [Formula: see text] fibre maps [Formula: see text] with negative Schwarzian derivative. Under a partial hyperbolicity assumption that ensures the existence of strong stable fibres for
Gerhard Keller, Atsuya Otani
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An investigation of the effects of chaotic maps on the performance of metaheuristics
Engineering Reports, 2021 This article presents an empirical investigation of the effects of chaotic maps on the performance of metaheuristics. Particle Swarm Optimization and Simulated Annealing are modified to use chaotic maps instead of the traditional pseudorandom number ...
Iannick Gagnon, Alain April, Alain Abran
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Leading Ruelle resonances of chaotic maps [PDF]
Physical Review E, 2000 The leading Ruelle resonances of typical chaotic maps, the perturbed cat map and the standard map, are calculated by variation. It is found that, excluding the resonance associated with the invariant density, the next subleading resonances are, approximately, the roots of the equation $z^4= $, where $ $ is a positive number which characterizes the ...
Blum, Galya, Agam, Oded
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Chaos and bifurcations in chaotic maps with parameter q: Numerical and analytical studies
Nonlinear Analysis, 2015 In this paper, a class of chaotic maps with parameter q are introduced and bifurcations and chaos in proposed maps are numerical and analytical studied.
Hao Zhang, Xing Yuan Wang, Xiao Hui Lin
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Light-Weighted Password-Based Multi-Group Authenticated Key Agreement for Wireless Sensor Networks
Applied Sciences, 2019 Security is a critical issue for medical and health care systems. Password-based group-authenticated key agreement for wireless sensor networks (WSNs) allows a group of sensor nodes to negotiate a common session key by using password authentication and ...
Mao-Sung Chen +2 more
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Performance evaluation of chaotic spreading sequences on software-defined radio
EURASIP Journal on Wireless Communications and Networking, 2017 In this paper, bit error performance evaluation of chaotic sequences is presented. Performance of chaotic sequences is evaluated on multiple access spread spectrum system model for USRP software defined radio.
Leonard Novosel, Gordan Šišul
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Statistical Analysis of Multiple Access Interference in Chaotic Spreading Sequence Based DS-CDMA Systems [PDF]
Electronics, 2017 This paper presents a statistical analysis of multiple access interference (MAI) in Direct Sequence Code Division Multiple Access (DS-CDMA) communication systems based on different types of chaotic spreading sequences. The probability distribution of the
A. Litvinenko, E. Bekeris
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