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4-D constellation construction and encryption scheme based on bit-level dimension dissecting and reorganization
Optics Express
|February 14, 2023
Summary
A novel 4-dimensional (4-D) constellation construction and encryption method simplifies high-dimensional data scrambling. This technique enables efficient, secure data transmission in optical fiber systems.
Area of Science:
- Optical Communications
- Information Security
- Signal Processing
Background:
- High-dimensional constellation construction presents significant challenges in optical communication systems.
- Existing encryption methods for high-dimensional data can be complex and computationally intensive.
Purpose of the Study:
- To propose a novel 4-dimensional (4-D) constellation construction and encryption scheme.
- To simplify the process of creating high-dimensional constellations and enhance data security.
Main Methods:
- A dimension dissecting reorganization approach is employed for constellation construction.
- Low-dimensional constellations are gradually decomposed and superimposed to build high-dimensional ones.
- Signal mapping dimensions, phase, and arrangement order are scrambled for encryption.
Main Results:
- The proposed scheme successfully reduces the complexity of constructing high-dimensional constellations.
- Dimensional confusion effectively enhances the encryption of high-dimensional information.
- Experimental transmission of 46.7 Gb/s 4-D constellation data over 2 km of 7-core optical fiber was achieved.
Conclusions:
- The developed 4-D constellation scheme offers a viable method for secure and efficient optical data transmission.
- The dimension evolution and scrambling techniques provide a robust approach to high-dimensional information encryption.
- The experimental validation confirms the practical applicability of the proposed scheme in high-speed optical communication.
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