Power domain superimposed modulation method based on dimensional level transformation and 5D constellation shaping
This paper proposes a power domain superposition modulation method based on dimensional level transformation and five dimensions (5D) constellation shaping. Stacking a regular triangular pyramid and enhancing it in terms of dimensions achieves the geometric shaping of the 5D constellation. Based on this, signal superposition in the power domain is achieved through dimensional transformation for data modulation. Experimental verification was conducted on a 2 km seven-core fiber in an IM/DD system. Compared to the traditional 2D-32QAM, this method can achieve a 0.7 dB gain at high received optical power and a 0.4 dB receiver sensitivity gain at a BER of 3.8 × 10<sup>-3</sup>.
Authors
- Jianxin Ren (ORCID: https://orcid.org/0000-0002-0752-7476)
- Xiangyu Wu (ORCID: https://orcid.org/0000-0003-2820-3056)
- Xiumin Song (ORCID: https://orcid.org/0000-0003-0114-3460)
- Tao Chen (ORCID: https://orcid.org/0000-0002-5334-219X)
- Yaya Mao
- Yingsong Li (ORCID: https://orcid.org/0000-0002-2450-6028)
- Shuaidong Chen (ORCID: https://orcid.org/0000-0002-0334-5405)
- Haojun Liu
- Feng Wang (ORCID: https://orcid.org/0000-0001-6940-1353)
- Zhipeng Qi (ORCID: https://orcid.org/0000-0003-0489-4163)
- Jianye Zhao (ORCID: https://orcid.org/0000-0001-6752-4720)
- Bo Liu (ORCID: https://orcid.org/0000-0003-1685-7968)
- Zhiyi Liu (ORCID: https://orcid.org/0000-0002-0758-4972)
Institutions
- Beijing University of Posts and Telecommunications (CN)
- Sun Yat-sen University (CN)
- Nanjing University of Information Science and Technology (CN)
Publication Details
- Journal
- Optics Letters
- Published
- 2024-10-24
- DOI
- https://doi.org/10.1364/ol.540774
- Primary Topic
- Optical Network Technologies
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- Jiangsu Provincial Key Research and Development Program
- National Key Research and Development Program of China