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Chain-structure time-delay reservoir computing for synchronizing chaotic signal and an application to secure communication
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Zhuo Liu,
Lijie Li
EURASIP Journal on Advances in Signal Processing, Volume: 2022, Issue: 1
Swansea University Author:
Lijie Li
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DOI (Published version): 10.1186/s13634-022-00893-0
Abstract
In this work, a chain-structure time-delay reservoir (CSTDR) computing, as a new kind of machine learning-based recurrent neural network, is proposed for synchronizing chaotic signals. Compared with the single time-delay reservoir, our proposed CSTDR computing shows excellent performance in synchron...
| Published in: | EURASIP Journal on Advances in Signal Processing |
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| ISSN: | 1687-6180 |
| Published: |
Springer Science and Business Media LLC
2022
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa60772 |
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| Abstract: |
In this work, a chain-structure time-delay reservoir (CSTDR) computing, as a new kind of machine learning-based recurrent neural network, is proposed for synchronizing chaotic signals. Compared with the single time-delay reservoir, our proposed CSTDR computing shows excellent performance in synchronizing chaotic signal achieving an order of magnitude higher accuracy. Noise consideration and optimal parameter setting of the model are discussed. Taking the CSTDR computing as the core, a novel scheme of secure communication is further designed, in which the “smart” receiver is different from the traditional in that it can synchronize to the chaotic signal used for encryption in an adaptive manner. The scheme can solve the issues such as design constrains for identical dynamical systems and couplings between transmitter and receiver in conventional settings. To further manifest the practical significance of the scheme, the digital implementation using field-programmable gate array is conducted and tested experimentally with real-world examples including image and video transmission. The work sheds light on developing machine learning-based signal processing and communication applications. |
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| Keywords: |
Reservoir computing, Machine learning, Synchronization, Chaos signal, FPGA, Secure communication |
| College: |
Faculty of Science and Engineering |
| Funders: |
The authors acknowledge the support from China Postdoctoral Science Foundation (No. 2019T120447). |
| Issue: |
1 |