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126 Results Found

  • Article
  • Open Access
1 Citations
1,014 Views
18 Pages

11 July 2025

The deep integration of smart grid and Internet of Things technologies has made high-speed power line carrier communication a key communication technology in energy management, industrial monitoring, and smart home applications, owing to its advantag...

  • Article
  • Open Access
39 Citations
5,554 Views
21 Pages

18 October 2018

To enhance the encryption proficiency and encourage the protected transmission of multiple images, the current work introduces an encryption algorithm for multiple images using the combination of mixed image elements (MIES) and a two-dimensional econ...

(This article belongs to the Special Issue Entropy in Image Analysis)
  • Article
  • Open Access
4 Citations
1,341 Views
31 Pages

13 March 2026

In contemporary communication systems, digital images occupy an irreplaceable role; however, the privacy-related risks attendant to their prevalent application have grown increasingly salient. This paper presents an image encryption scheme integratin...

(This article belongs to the Section Signal and Data Analysis)
  • Article
  • Open Access
5 Citations
713 Views
25 Pages

Robust Image Encryption Exploiting 2D Hyper-Chaos, Fractal Sierpiński Carpet Confusion, and Cascaded Diffusion

  • Zeyu Zhang,
  • Wenqiang Zhang,
  • Mingxu Wang,
  • Na Ren and ,
  • Peizhen Zhang and
  • Yiting Lin
  • + 1 author+ 0 author

10 April 2026

With the rapid growth of digital image transmission, ensuring data security has become increasingly important. However, existing chaos-based image encryption algorithms often suffer from insufficient chaotic randomness and weak integration between ch...

  • Article
  • Open Access
23 Citations
4,914 Views
36 Pages

Path Planning for Unmanned Delivery Robots Based on EWB-GWO Algorithm

  • Yuan Luo,
  • Qiong Qin,
  • Zhangfang Hu and
  • Yi Zhang

7 February 2023

With the rise of robotics within various fields, there has been a significant development in the use of mobile robots. For mobile robots performing unmanned delivery tasks, autonomous robot navigation based on complex environments is particularly imp...

(This article belongs to the Section Sensors and Robotics)
  • Article
  • Open Access
51 Citations
3,568 Views
13 Pages

On Two-Dimensional Fractional Chaotic Maps with Symmetries

  • Fatima Hadjabi,
  • Adel Ouannas,
  • Nabil Shawagfeh,
  • Amina-Aicha Khennaoui and
  • Giuseppe Grassi

6 May 2020

In this paper, we propose two new two-dimensional chaotic maps with closed curve fixed points. The chaotic behavior of the two maps is analyzed by the 0–1 test, and explored numerically using Lyapunov exponents and bifurcation diagrams. It has...

(This article belongs to the Special Issue Bifurcation and Chaos in Fractional-Order Systems)
  • Article
  • Open Access
5 Citations
3,185 Views
19 Pages

14 November 2021

The Lyapunov exponent is primarily used to quantify the chaos of a dynamical system. However, it is difficult to compute the Lyapunov exponent of dynamical systems from a time series. The entropic chaos degree is a criterion for quantifying chaos in...

(This article belongs to the Special Issue Applications of Entropy in Causality Analysis)
  • Article
  • Open Access
73 Citations
7,257 Views
17 Pages

An Algorithm of Image Encryption Using Logistic and Two-Dimensional Chaotic Economic Maps

  • Sameh S. Askar,
  • Abdel A. Karawia,
  • Abdulrahman Al-Khedhairi and
  • Fatemah S. Al-Ammar

9 January 2019

In the literature, there are many image encryption algorithms that have been constructed based on different chaotic maps. However, those algorithms do well in the cryptographic process, but still, some developments need to be made in order to enhance...

(This article belongs to the Collection Entropy-Based Applied Cryptography and Enhanced Security for Future IT Environments)
  • Article
  • Open Access
17 Citations
3,752 Views
18 Pages

In this paper, we propose a secure image encryption method using compressive sensing (CS) and a two-dimensional linear canonical transform (2D LCT). First, the SHA256 of the source image is used to generate encryption security keys. As a result, the...

  • Article
  • Open Access
12 Citations
3,403 Views
23 Pages

An n-Dimensional Chaotic Map with Application in Reversible Data Hiding for Medical Images

  • Yuli Yang,
  • Ruiyun Chang,
  • Xiufang Feng,
  • Peizhen Li and ,
  • Yongle Chen and
  • Hao Zhang
  • + 1 author+ 0 author

13 March 2024

The drawbacks of a one-dimensional chaotic map are its straightforward structure, abrupt intervals, and ease of signal prediction. Richer performance and a more complicated structure are required for multidimensional chaotic mapping. To address the s...

(This article belongs to the Special Issue Image Encryption and Privacy Protection Based on Chaotic Systems—Second Edition)
  • Article
  • Open Access

Adaptive Image Encryption Algorithm Based on a 2D Hyperchaotic Map

  • Mengmeng Wang,
  • Dong Liu,
  • Xueyan Han,
  • Qiang Zu and
  • Tianxin Lu

13 November 2026

Existing two-dimensional chaotic maps typically have narrow or fragmented chaotic windows, which restricts their use in image encryption. We propose a two-dimensional hyperchaotic exponential-adjusted logistic map with linear cross-diffusion (2D-HELD...

(This article belongs to the Special Issue Image Encryption and Privacy Protection Based on Chaotic Systems—Third Edition)
  • Article
  • Open Access
23 Citations
3,297 Views
13 Pages

Bifurcations, Hidden Chaos and Control in Fractional Maps

  • Adel Ouannas,
  • Othman Abdullah Almatroud,
  • Amina Aicha Khennaoui,
  • Mohammad Mossa Alsawalha and ,
  • Dumitru Baleanu,
  • Van Van Huynh and
  • Viet-Thanh Pham
  • + 2 authors+ 0 author

27 May 2020

Recently, hidden attractors with stable equilibria have received considerable attention in chaos theory and nonlinear dynamical systems. Based on discrete fractional calculus, this paper proposes a simple two-dimensional and three-dimensional fractio...

(This article belongs to the Special Issue Bifurcation and Chaos in Fractional-Order Systems)
  • Article
  • Open Access
3 Citations
3,049 Views
30 Pages

9 June 2023

Since its original publication in 1978, Lozi’s chaotic map has been thoroughly explored and continues to be. Hundreds of publications have analyzed its particular structure or applied its properties in many fields (electronic devices such as me...

  • Article
  • Open Access
35 Citations
5,119 Views
28 Pages

30 January 2022

Digital chaotic maps have been widely used in the fields of cryptography owing to their dynamic characteristics, however, some unfavorable security properties arise when they operate on devices with limited precision. Thus, enhancing the properties o...

(This article belongs to the Special Issue Chaos-Based Secure Communication and Cryptography)
  • Article
  • Open Access
49 Citations
6,485 Views
10 Pages

27 April 2018

The investigations of hidden attractors are mainly in continuous-time dynamic systems, and there are a few investigations of hidden attractors in discrete-time dynamic systems. The classical chaotic attractors of the Logistic map, Tent map, Henon map...

(This article belongs to the Special Issue Nonlinear Dynamics and Entropy of Complex Systems with Hidden and Self-excited Attractors)
  • Article
  • Open Access
4 Citations
1,075 Views
30 Pages

Images serve as significant conduits of information and are extensively utilized in several facets of life. As chaotic encryption evolves, current chaotic key generators have grown increasingly prevalent and susceptible to compromise. We present an a...

(This article belongs to the Section Computer Science & Engineering)
  • Article
  • Open Access
1 Citations
1,337 Views
15 Pages

14 November 2025

Winding numbers are key indices in the depiction, modelling, and testing of dynamical processes. They capture phase progression on closed curves and are robust for quasiperiodic dynamics, but their status for chaotic Poincaré sections is uncle...

(This article belongs to the Special Issue Modelling of Nonlinear Dynamical Systems)
  • Article
  • Open Access
1 Citations
2,345 Views
14 Pages

2 January 2024

New molecular genetic algorithms, as tools for the visualization and analysis of big data, have made it possible not only to illustrate the internal structure of DNA molecules within their parameters but also to explore the field of chaos theory, par...

  • Article
  • Open Access
34 Citations
3,060 Views
12 Pages

Memristor-Based Lozi Map with Hidden Hyperchaos

  • Jiang Wang,
  • Yang Gu,
  • Kang Rong,
  • Quan Xu and
  • Xi Zhang

21 September 2022

Recently, the application of memristors to improve chaos complexity in discrete chaotic systems has been paid more and more attention to. To enrich the application examples of discrete memristor-based chaotic systems, this article proposes a new thre...

(This article belongs to the Special Issue Chaotic Systems: From Mathematics to Real-World Applications)
  • Article
  • Open Access
61 Citations
5,718 Views
20 Pages

In this paper, a novel image encryption scheme based on a fractional-order Henon chaotic map, a two-dimensional (2D) Discrete Wavelet Transform (DWT) and a four-dimensional (4D) hyperchaotic system is proposed. Firstly, the original image is transfor...

(This article belongs to the Section Computer Science & Engineering)
  • Article
  • Open Access
49 Citations
4,590 Views
18 Pages

13 February 2022

In the present work, a neotype chaotic product trigonometric map (PTM) system is proposed. We demonstrate the chaotic characteristics of a PTM system by using a series of complexity criteria, such as bifurcation diagrams, Lyapunov exponents, approxim...

(This article belongs to the Special Issue Discrete and Continuous Memristive Nonlinear Systems and Symmetry)
  • Article
  • Open Access
11 Citations
2,144 Views
29 Pages

5 November 2024

The transition from text to images as the primary form of information transmission has recently increased the need for secure and effective encryption techniques due to the expanding information dimensions. The color picture encryption algorithm util...

(This article belongs to the Section E1: Mathematics and Computer Science)
  • Article
  • Open Access
21 Citations
4,447 Views
13 Pages

6 June 2018

In this paper, a novel image encryption scheme is proposed for the secure transmission of image data. A self-synchronous chaotic stream cipher is designed with the purpose of resisting active attack and ensures the limited error propagation of image...

(This article belongs to the Special Issue Entropy in Dynamic Systems)
  • Article
  • Open Access
6 Citations
2,713 Views
20 Pages

4 December 2022

This paper proposes a novel spatiotemporal chaotic system with two-dimensional dynamic pseudo-random coupled map lattices (2D-DPRCML) based on partitioned elementary cellular automata (PECA). In the system iteration, coupling lattices are chosen base...

  • Article
  • Open Access
32 Citations
4,239 Views
26 Pages

14 December 2022

This paper proposed an image algorithm based on a cascaded chaotic system to improve the performance of the encryption algorithm. Firstly, this paper proposed an improved cascaded two-dimensional map 2D-Cosine-Logistic-Sine map (2D-CLSM). Cascade cha...

(This article belongs to the Special Issue Computational Imaging and Image Encryption with Entropy)
  • Article
  • Open Access
24 Citations
3,308 Views
26 Pages

21 February 2023

This paper analyzes the security of an image encryption algorithm based on a two-dimensional hyperchaotic map. This encryption algorithm generated chaotic sequences through a combination of two one-dimensional chaotic maps and used them as the permut...

(This article belongs to the Section Information Theory, Probability and Statistics)
  • Article
  • Open Access
15 Citations
2,975 Views
25 Pages

Applicable Image Security Based on New Hyperchaotic System

  • Jingya Wang,
  • Xianhua Song,
  • Huiqiang Wang and
  • Ahmed A. Abd El-Latif

1 December 2021

Hyperchaotic systems are widely applied in the cryptography domain on account of their more complex dynamical behavior. In view of this, the greatest contribution of this paper is that a two-dimensional Sine coupling Logistic modulated Sine (2D-SCLMS...

(This article belongs to the Special Issue Symmetry in Chaotic Systems and Circuits Ⅱ)
  • Article
  • Open Access
6 Citations
1,455 Views
20 Pages

28 May 2025

Most image encryption methods based on Rubik’s cube scrambling adopt the idea of cyclic shift or map the image pixels to the cube surface, not fully considering the cube’s three-dimensional (3D) properties. In response to this defect, we...

(This article belongs to the Section Signal and Data Analysis)
  • Article
  • Open Access
2 Citations
571 Views
33 Pages

21 May 2026

Digital images are easily transmitted in Internet, but there is also a great risk of information leakage. To meet the requirements of secure image transmission and real-time communication, an image encryption algorithm based on a novel chaotic map an...

(This article belongs to the Section Complexity)
  • Article
  • Open Access
4 Citations
1,780 Views
32 Pages

18 August 2025

With the rapid advancement of information technology, as critical information carriers, images are confronted with significant security risks. To ensure the image security, this paper proposes an image encryption algorithm based on a dynamic rhombus...

(This article belongs to the Section Signal and Data Analysis)
  • Article
  • Open Access
80 Citations
5,902 Views
28 Pages

17 February 2022

A hybrid domain image encryption algorithm is developed by integrating with improved Henon map, integer wavelet transform (IWT), bit-plane decomposition, and deoxyribonucleic acid (DNA) sequence operations. First, we improve the classical two-dimensi...

  • Article
  • Open Access
4 Citations
1,079 Views
21 Pages

Chaotic Dynamics, Complexity Analysis and Control Schemes in Fractional Discrete Market System

  • Ali Aloui,
  • Louiza Diabi,
  • Omar Kahouli,
  • Adel Ouannas and ,
  • Lilia El Amraoui and
  • Mohamed Ayari
  • + 1 author+ 0 author

The study of economic maps has consistently attracted researchers due to their rich dynamics and practical relevance. A deeper understanding of these systems enables the development of more effective control strategies. In this work, we examine the i...

(This article belongs to the Special Issue New Horizons in Fractional and Fractal Dynamics: Unraveling Complexity in Chaotic Systems)
  • Article
  • Open Access
46 Citations
5,192 Views
25 Pages

23 January 2021

With the development of mobile communication network, especially 5G today and 6G in the future, the security and privacy of digital images are important in network applications. Meanwhile, high resolution images will take up a lot of bandwidth and st...

(This article belongs to the Special Issue Machine Learning in Sensors and Imaging)
  • Article
  • Open Access
1 Citations
3,321 Views
25 Pages

We show that a two-dimensional area-preserving map with Lorentzian potential is a topological horseshoe and uniformly hyperbolic in a certain parameter region. In particular, we closely examine the so-called sector condition, which is known to be a s...

(This article belongs to the Special Issue Many Body Quantum Chaos)
  • Article
  • Open Access
105 Citations
3,788 Views
23 Pages

Exploiting Dynamic Vector-Level Operations and a 2D-Enhanced Logistic Modular Map for Efficient Chaotic Image Encryption

  • Hongmin Li,
  • Shuqi Yu,
  • Wei Feng,
  • Yao Chen and ,
  • Jing Zhang,
  • Zhentao Qin,
  • Zhengguo Zhu and
  • Marcin Wozniak
  • + 3 authors+ 0 author

31 July 2023

Over the past few years, chaotic image encryption has gained extensive attention. Nevertheless, the current studies on chaotic image encryption still possess certain constraints. To break these constraints, we initially created a two-dimensional enha...

(This article belongs to the Special Issue Image Encryption and Privacy Protection Based on Chaotic Systems)
  • Article
  • Open Access
21 Citations
2,328 Views
19 Pages

On New Symmetric Fractional Discrete-Time Systems: Chaos, Complexity, and Control

  • Ma’mon Abu Hammad,
  • Louiza Diabi,
  • Amer Dababneh,
  • Amjed Zraiqat and ,
  • Shaher Momani,
  • Adel Ouannas and
  • Amel Hioual
  • + 2 authors+ 0 author

3 July 2024

This paper introduces a new symmetric fractional-order discrete system. The dynamics and symmetry of the suggested model are studied under two initial conditions, mainly a comparison of the commensurate order and incommensurate order maps, which high...

(This article belongs to the Special Issue Nonlinear Symmetric Systems and Chaotic Systems in Engineering)
  • Article
  • Open Access
6 Citations
2,707 Views
14 Pages

Basin Entropy and Shearless Barrier Breakup in Open Non-Twist Hamiltonian Systems

  • Leonardo C. Souza,
  • Amanda C. Mathias,
  • Pedro Haerter and
  • Ricardo L. Viana

30 July 2023

We consider open non-twist Hamiltonian systems represented by an area-preserving two-dimensional map describing incompressible planar flows in the reference frame of a propagating wave, and possessing exits through which map orbits can escape. The co...

(This article belongs to the Section Complexity)
  • Article
  • Open Access
1 Citations
660 Views
26 Pages

23 April 2026

This study proposes a novel image encryption algorithm based on a two-dimensional discrete chaotic system that integrates cellular automata (CA) with a tent map. The algorithm addresses security vulnerabilities in digital image transmission and stora...

(This article belongs to the Special Issue Nonlinear Dynamical System and Its Applications)
  • Article
  • Open Access
22 Citations
3,705 Views
28 Pages

Robust Image Encryption with 2D Hyperchaotic Map and Dynamic DNA-Zigzag Encoding

  • Haijun Zhang,
  • Xiaojiao Liu,
  • Kehan Chen,
  • Rigen Te and
  • Fei Yan

6 June 2025

This study presents a novel two-dimensional hyperchaotic map, referred to as the 2D exponent-logarithm-sine chaotic map (2D-ELSCM), which is intricately designed through the interplay of exponential, logarithmic, and sine functions. To comprehensivel...

(This article belongs to the Section Multidisciplinary Applications)
  • Article
  • Open Access
404 Views
30 Pages

9 June 2026

Existing chaos-based color image encryption algorithms still face several challenges, including insufficient dynamical complexity of low-dimensional chaotic maps, residual boundary regularity caused by fixed block partitioning, and limited diffusion...

  • Article
  • Open Access
1 Citations
1,526 Views
18 Pages

16 September 2025

We present a novel and completely deterministic method to model chaotic orbits in nonlinear discrete dynamics, taking the quadratic map as an example. This method is based on the resurgent analysis developed by Écalle to perform the resummatio...

  • Article
  • Open Access
24 Citations
3,462 Views
28 Pages

To prevent the leakage of image content, image encryption technology has received increasing attention. Most current algorithms are only suitable for the images of certain types and cannot update keys in a timely manner. To tackle such problems, we p...

(This article belongs to the Section Computer Science & Engineering)
  • Article
  • Open Access
3 Citations
726 Views
29 Pages

7 May 2026

With the rapid advancement of information technology, the secure transmission and storage of digital images have garnered increasing attention. To safeguard image information from theft and enhance security during network transmission, a novel image...

(This article belongs to the Section Complexity)
  • Article
  • Open Access
5 Citations
1,158 Views
21 Pages

In this paper, we investigate the (1 + 1)-dimensional nonlinear truncated M-fractional FitzHugh–Nagumo model. The main objective is to analyze the dynamical behavior and obtain exact solutions for the model. First, a fractional transformation i...

(This article belongs to the Special Issue Mathematical and Physical Analysis of Fractional Dynamical Systems, Second Edition)
  • Article
  • Open Access
9 Citations
1,702 Views
24 Pages

2 August 2025

Chaotic systems have demonstrated significant potential in the field of image encryption due to their extreme sensitivity to initial conditions, inherent unpredictability, and pseudo-random behavior. However, existing chaos-based encryption schemes s...

(This article belongs to the Section F: Engineering and Materials)
  • Article
  • Open Access
7 Citations
1,473 Views
22 Pages

15 September 2025

This study conducts an in-depth analysis of the dynamical characteristics and solitary wave solutions of the integrable Zhanbota-IIA equation through the lens of planar dynamic system theory. This research applies Lie symmetry to convert nonlinear pa...

(This article belongs to the Section Natural Sciences)
  • Article
  • Open Access
2,258 Views
13 Pages

13 October 2021

This paper considers a Bertrand competition between two firms whose decision variables are derived from a quadratic utility function. The first firm produces new products with their own prices while the second firm re-manufactures returned products a...

(This article belongs to the Special Issue Mathematics and Financial Economics)
  • Article
  • Open Access
2 Citations
1,772 Views
19 Pages

11 August 2025

We explore the concept of scaling invariance in a type of dynamical systems that undergo a transition from regularity to chaos. The systems are described by a two-dimensional, nonlinear mapping that preserves the area in the phase space. The key vari...

(This article belongs to the Special Issue From Order to Disorder: Superfluidity, Stochastic Processes, and the Dynamics of Life—Dedicated to Professor Peter McClintock on the Occasion of His 85th Birthday)
  • Article
  • Open Access
9 Citations
3,991 Views
17 Pages

14 November 2018

The four-screw extruder (FSE) is a novel equipment for polymer processing. In this paper, from a new viewpoint of Lagrangian coherent structures (LCS), two-dimensional fluid transport and chaotic mixing characteristics within three kinds of novel ind...

(This article belongs to the Special Issue Polymer Processing: Modeling and Correlations Finalized to Tailoring the Plastic Part Morphology and Properties)

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