Zhang, Y., Jiang, N., Liu, S., Lavery, M. P. J. , Abbas, H. and Qiu, K. (2021) Physical Layer Encryption in CO-OFDM Employing Chaotic Mapping and Novel 3D 16-Ary Constellation. In: 6th International Conference on UK-China Emerging Technologies (UCET 2021), Chengdu, China, 4-6 Nov 2021, pp. 90-95. ISBN 9781665495752 (doi: 10.1109/UCET54125.2021.9674976)
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Abstract
We propose a novel chaotic constellation scrambling scheme for physical layer security enhancement and transmission performance improvement in coherent optical orthogonal frequency division multiplexing (CO-OFDM) system. A newly designed 3-D regular hexagon signal constellation is adopted, where both encryption dimensions are expanded and error performance is improved. The dynamic parameters of constellation scrambling are generated by the hybrid chaotic scheme that uses a combination of one 3-D hyper-chaotic Hénon mapping and two independent 1-D Logistic mappings, in which the achieved key space can reach up to 10 133 to enhance the security level of OFDM data encryption during transmission. Experimental verification of the proposed security-enhanced strategy is demonstrated in a 144 Gbps 16-quadrature-amplitude-modulation CO-OFDM system over 100-km standard single-mode fiber (SSMF). The experimental results prove that the proposed scheme could effectively enhance the system confidentiality and transmission performance, which suggests a scalable strategy for future physically secured CO-OFDM systems.
| Item Type: | Conference Proceedings |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Abbas, Dr Hasan and Lavery, Professor Martin and Zhang, Yiqun |
| Authors: | Zhang, Y., Jiang, N., Liu, S., Lavery, M. P. J., Abbas, H., and Qiu, K. |
| College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
| ISBN: | 9781665495752 |
| Published Online: | 20 January 2022 |
| First Published: | First published in 2021 International Conference on UK-China Emerging Technologies (UCET): 90-95 |
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