Publications

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Thesis
Sayed, W. S., MSc Thesis: Generalized Chaotic Maps and Elementary Functions Between Analysis and Implementation, : Faculty of Engineering, Cairo University, 2015. Abstract
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Sayed, W. S., PhD Thesis: Generalization and control of chaotic systems using extra parameters and affine transformations, : Faculty of Engineering, Cairo University, 2020. Abstract
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Journal Article
Sayed, W. S., A. M. Noeman, A. Abdellatif, M. Abdelrazek, M. G. Badawy, A. Hamed, and S. El-Tantawy, "AI-based adaptive personalized content presentation and exercises navigation for an effective and engaging E-learning platform", Multimedia Tools and Applications, vol. 82, no. 3: Springer US New York, pp. 3303–3333, 2023. Abstract
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Sharobim, B. K., M. H. Yacoub, W. S. Sayed, A. G. Radwan, and L. A. Said, "Artificial Neural Network Chaotic PRNG and simple encryption on FPGA", Engineering Applications of Artificial Intelligence, vol. 126: Pergamon, pp. 106888, 2023. Abstract
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Sayed, W. S., M. Roshdy, L. A. Said, and A. G. Radwan, "Chaotic Dynamics and FPGA Implementation of a Fractional-Order Chaotic System With Time Delay", IEEE Open Journal of Circuits and Systems, vol. 1: IEEE, pp. 255–262, 2020. Abstract
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Sayed, W. S., M. Roshdy, L. A. Said, N. Herencsar, and A. G. Radwan, "CORDIC-based FPGA realization of a spatially rotating translational fractional-order multi-scroll grid chaotic system", Fractal and Fractional, vol. 6, no. 8: MDPI, pp. 432, 2022. Abstract
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Sayed, W. S., M. Roshdy, L. A. Said, and A. G. Radwan, "Design and FPGA Verification of Custom-Shaped Chaotic Attractors Using Rotation, Offset Boosting and Amplitude Control", IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 68, no. 11: IEEE, pp. 3466–3470, 2021. Abstract
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Sayed, W. S., A. G. Radwan, and H. A. H. Fahmy, "Design of positive, negative, and alternating sign generalized logistic maps", Discrete Dynamics in Nature and Society, vol. 2015: Hindawi Publishing Corporation, 2015. Abstract
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Tolba, M. F., W. S. Sayed, M. E. Fouda, H. Saleh, M. Al-Qutayri, B. Mohammad, and A. G. Radwan, "Digital Emulation of a Versatile Memristor With Speech Encryption Application", IEEE Access, vol. 7: IEEE, pp. 174280–174297, 2019. Abstract
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Sharobim, B. K., M. A. Fetteha, S. K. Abd-El-Hafiz, W. S. Sayed, L. A. Said, and A. G. Radwan, "An Efficient Multi-Secret Image Sharing System Based on Chinese Remainder Theorem and Its FPGA Realization", IEEE Access, vol. 11: IEEE, pp. 9511–9520, 2023. Abstract
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Mohamed, S. M., W. S. Sayed, A. H. Madian, A. G. Radwan, and L. A. Said, "An encryption application and FPGA realization of a fractional memristive chaotic system", Electronics, vol. 12, no. 5: MDPI, pp. 1219, 2023. Abstract
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Sayed, W. S., A. G. Radwan, A. A. Rezk, and H. A. H. Fahmy, "Finite Precision Logistic Map between Computational Efficiency and Accuracy with Encryption Applications", Complexity, vol. 2017: Hindawi Publishing Corporation, 2017. Abstract
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Mohamed, S. M., W. S. Sayed, A. G. Radwan, and L. A. Said, "FPGA implementation of reconfigurable CORDIC algorithm and a memristive chaotic system with transcendental nonlinearities", IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 69, no. 7: IEEE, pp. 2885–2892, 2022. Abstract
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Sayed, W. S., M. F. Tolba, A. G. Radwan, and S. K. Abd-El-Hafiz, "FPGA realization of a speech encryption system based on a generalized modified chaotic transition map and bit permutation", Multimedia Tools and Applications: Springer US, pp. 1-31, 2019. Abstract

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Mohamed, S. M., W. S. Sayed, L. A. Said, and A. G. Radwan, "FPGA realization of fractals based on a new generalized complex logistic map", Chaos, Solitons & Fractals, vol. 160: Pergamon, pp. 112215, 2022. Abstract
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Elnawawy, M., F. Aloul, A. Sagahyroon, A. S. Elwakil, W. S. Sayed, L. A. Said, S. M. Mohamed, and A. G. Radwan, "FPGA realizations of chaotic epidemic and disease models including COVID-19", IEEE Access, vol. 9: IEEE, pp. 21085–21093, 2021. Abstract

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Sayed, W. S., M. M. R. Henein, S. K. Abd-El-Hafiz, and A. G. Radwan, "Generalized Dynamic Switched Synchronization between Combinations of Fractional-Order Chaotic Systems", Complexity, vol. 2017: Hindawi Publishing Corporation, 2017. Abstract
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Sayed, W. S., H. A. H. Fahmy, A. A. Rezk, and A. G. Radwan, "Generalized Smooth Transition Map Between Tent and Logistic Maps", International Journal of Bifurcation and Chaos, vol. 27, issue 01: World Scientific Publishing Company, pp. 1730004, 2017. Abstract
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Sayed, W. S., and A. G. Radwan, "Generalized switched synchronization and dependent image encryption using dynamically rotating fractional-order chaotic systems", AEU-International Journal of Electronics and Communications, vol. 123: Urban & Fischer, pp. 153268, 2020. Abstract
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Fetteha, M. A., W. S. Sayed, and L. A. Said, "A lightweight image encryption scheme using dna coding and chaos", Electronics, vol. 12, no. 24: MDPI, pp. 4895, 2023. Abstract
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Sayed, W. S., S. M. Mohamed, A. S. Elwakil, L. A. Said, and A. G. Radwan, "Numerical sensitivity analysis and hardware verification of a transiently-chaotic attractor", International Journal of Bifurcation and Chaos, vol. 32, no. 07: World Scientific Publishing Company, pp. 2250103, 2022. Abstract
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Mohamed, S. M., W. S. Sayed, L. A. Said, and A. G. Radwan, "Reconfigurable fpga realization of fractional-order chaotic systems", IEEE Access, vol. 9: IEEE, pp. 89376–89389, 2021. Abstract
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Sayed, W. S., and A. G. Radwan, Self-Reproducing Hidden Attractors in Fractional-Order Chaotic Systems Using Affine Transformations, , vol. 1: IEEE, pp. 243 - 254, 2020. Abstract
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Sayed, W. S., A. G. Radwan, H. A. H. Fahmy, and A. L. El-Sedeek, "Software and Hardware Implementation Sensitivity of Chaotic Systems and Impact on Encryption Applications", Circuits, Systems & Signal Processing, 2020. Abstract
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Sharobim, B. K., M. Hosam, S. K. Abd-El-Hafiz, W. S. Sayed, L. A. Said, and A. G. Radwan, "Software and hardware realizations for different designs of chaos-based secret image sharing systems", Journal of Real-Time Image Processing, vol. 21, no. 3: Springer Berlin Heidelberg, pp. 1–16, 2024. Abstract
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