Article
Engineering, Electrical & Electronic
Venkata Reddy Kopparthi, Anil Kali, Samrat L. Sabat, Kiran Kumar Anumandla, Rangababu Peesapati, J. S. Armand Eyebe Fouda
Summary: This paper presents a digital implementation of a PWLCM system that mitigates the degradation of digital chaos. The design includes a cascaded chaotic map and shift register, as well as a postprocessing technique. The hardware architecture is synthesized on FPGA and ASIC, achieving high throughput. Experimental validation and security analyses confirm the effectiveness of the proposed design in terms of randomness and security. The achieved throughput is 1.296 Gbps on FPGA and 1.696 Gbps on ASIC.
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
(2022)
Article
Engineering, Electrical & Electronic
Jianeng Tang, Zezong Zhang, Peiyang Chen, Zhongming Huang, Tingting Huang
Summary: Chaos has been widely used in secure communication, signal processing, and chaotic synchronization due to its sensitivity, ergodicity, boundedness, and unpredictability. However, existing one-dimensional chaotic maps have simple chaotic behaviors and discrete chaotic intervals, which affect practical applications. To address these issues, this paper proposes a one-dimensional chaotic model called the cosine-coupled chaotic model (CCCM) based on the absolute value function and the cosine function. Experimental results show that the new chaotic maps generated using the CCCM have wider chaotic intervals and more complex chaotic behaviors than the original maps and other advanced maps.
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS
(2023)
Article
Engineering, Electrical & Electronic
Shouliang Li, Ye Wu, Letian Gao, Tangyan Li, Qibin Zhang, Yulin Shen, Zhen Yang
Summary: A new PRNG based on a four-dimensional discrete system is proposed in this study, which can generate high-quality and unpredictable pseudo-random sequences at a high speed. The proposed PRNG outperforms the state-of-the-art in terms of throughput and randomness quality, and has successfully passed the NIST SP800-22 test.
ELECTRONICS LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Shouliang Li, Ye Wu, Letian Gao, Tangyan Li, Qibin Zhang, Yulin Shen, Zhen Yang
Summary: This study proposes a new pseudo-random number generator based on a four-dimensional discrete system, which can generate high-quality and unpredictable random sequences at a high speed of 12811.53 Mb/s. The proposed generator passed the NIST SP800-22 test, demonstrating its high quality of randomness.
ELECTRONICS LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Riccardo Della Sala, Davide Bellizia, Giuseppe Scotti
Summary: This paper presents a True Random Number Generator (TRNG) implemented using latched-XOR (LX) gates. The proposed TRNG improves the throughput of conventional TRNGs by combining latches metastability and ring oscillators jitter. Experimental results show that the generated bitstreams exhibit good randomness and the TRNG is robust to voltage and temperature variations. The FPGA implementation is compact and efficient, achieving high throughput.
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS
(2022)
Article
Engineering, Electrical & Electronic
Vianney Boniface Ekani Mebenga, Venkata Reddy Kopparthi, Hermann Djeugoue Nzeuga, J. S. Armand Eyebe Fouda, Guy Morgan Djeufa Dagoumguei, Georges Bell Bitjoka, P. Rangababu, Samrat L. Sabat
Summary: This paper presents an unsigned integer encoded PRNG based on the delayed quantized Arnold's Cat Map (QACM) that exhibits true periodic orbits with large periods. The proposed PRNG is obtained by delaying one of the 2-D QACM outputs with a linear feedback shift register (LFSR) thereby increasing its period. The period of the PRNG increases with an increase in the delay and bit-precision.
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Talal Bonny
Summary: This paper compares the hardware/software and security of three-dimensional chaotic and four-dimensional hyper-chaotic oscillator systems, finding that the hyper-chaotic system has higher security but is slower with more FPGA resource utilization, while the chaotic system shows better overall performance.
CIRCUITS SYSTEMS AND SIGNAL PROCESSING
(2021)
Article
Mathematics, Interdisciplinary Applications
A. Dlamini, E. F. Doungmo Goufo
Summary: In this paper, a generalized chaotic system with multiple scrolls is studied, analyzed, and simulated using analytical, numerical, and experimental circuit elements. The system exhibits chaotic and hyperchaotic dynamics, as well as hidden attractors. Simulations demonstrate that the system displays fractal features combined with chaotic behavior.
CHAOS SOLITONS & FRACTALS
(2023)
Article
Computer Science, Information Systems
Lahcene Merah, Pascal Lorenz, Ali-Pacha Adda
Summary: The proposed scheme in this paper effectively addresses the issue of dynamical degradation in chaotic systems due to finite arithmetic precision by saving portions of the chaotic sequence history, comparing it with saved samples, and perturbing the chaotic orbit to prevent cycling. It provides better results than the original map in terms of statistical properties and unpredictability, without the need for higher arithmetic precision that is costly to implement.
Article
Engineering, Electrical & Electronic
Carlos E. C. Souza, Davi Moreno, Daniel P. B. Chaves, Cecilio Pimentel
Summary: This work proposes a method to generate 1-D pseudo-chaotic sequences based on the discrete Arnold's map defined over the integer ring Z(2)m. The period of the generated sequences is investigated using properties of the Fibonacci sequence over Z(2)m. The statistical properties of the PRNG are analyzed, and it is shown that the proposed PRNG has higher throughput and competitive hardware consumption compared to other architectures in the literature.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2022)
Article
Computer Science, Theory & Methods
Yen-Lung Chen, Bo-Yi Chang, Chia-Hsiang Yang, Tzi-Dar Chiueh
Summary: This article introduces a high-throughput hardware accelerator for speeding up DNA short-read mapping, utilizing techniques such as Bloom filters and folded processing element arrays to significantly improve efficiency in CML selection and alignment algorithms.
IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS
(2021)
Article
Automation & Control Systems
Hairong Lin, Chunhua Wang, Fei Yu, Cong Xu, Qinghui Hong, Wei Yao, Yichuang Sun
Summary: The study constructed a simple multiwing chaotic system without polynomial functions, which can adjust the number of butterflies in multiple ways. By using commercially available electronic components to implement the analog circuit, the consumption of electronic components was greatly reduced. The application of MWCS to chaotic image encryption showed high security and reliable encryption performance.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2021)
Article
Automation & Control Systems
Ngoc T. Nguyen, Toan Bui, Ghyslain Gagnon, Pascal Giard, Georges Kaddoum
Summary: Dynamic and nonlinear systems are being considered for random bit generation, with chaotic systems being particularly suitable for this purpose. This article introduces a new continuous chaotic system and presents a novel digital implementation, along with a data scrambling circuit to improve randomness. The proposed random bit generator successfully passes statistical randomness tests and demonstrates a significantly higher throughput compared to state-of-the-art designs, while utilizing minimal resources on the targeted FPGA.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2022)
Article
Computer Science, Hardware & Architecture
Xiaoyan Wang, Xiaoyan Liu
Summary: The study highlights the importance of crisis management models such as the information layer, control layer, utilitarian layer, and human cooperation layer, as well as technical improvements and implementations for crisis response. Additionally, utilizing Web Geographic Information System and sensor data to generate logistics intelligent decision procedures can enhance the efficiency of emergency logistics response.
MICROPROCESSORS AND MICROSYSTEMS
(2021)
Article
Computer Science, Information Systems
Mehmet Sahin Acikkapi, Fatih Ozkaynak
Summary: Chaos theory explores the rich dynamics of chaotic systems in the real world, with different initial conditions being key to generating statistically random number sequences. The success of generating random numbers is influenced by the initial conditions of chaotic maps, which must meet statistical requirements.
