High-Security 3D-CAP Modulation Based on Triple-Decker Constellation in a 7-Core Fiber

Autor: Siqi He, Bo Liu, Jianxin Ren, Rahat Ullah, Xiangyu Wu, Yaya Mao, Shuaidong Chen, Chenqi Ni, Tutao Wang, Yiming Ma, Chenfang Zhang, He Zhang, Shikui Shen, Guangquan Wang
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: IEEE Photonics Journal, Vol 14, Iss 5, Pp 1-7 (2022)
Druh dokumentu: article
ISSN: 1943-0655
DOI: 10.1109/JPHOT.2022.3202657
Popis: In this paper, a high-security three-dimensional carrier-less amplitude-phase (3D-CAP) modulation is proposed, which can be used for short-distance multi-core fiber communication. Using a brand-new 3D constellation dubbed Triple-Decker, the 3D-CAP passive optical network's bit error rate (BER) performance is improved. This constellation's constellation figure of merit can be increased by changing the three-dimensional constellation distribution through geometric shaping. To provide constellation encryption for Triple-Decker by rotation, expansion, and time slot scrambling at the physical layer in 3D-CAP passive optical network (3D-CAP-PON), a four-dimensional hyperchaotic system known as Fu's model is utilized. We successfully carried out an experiment demonstrating 25.5 Gb/s 3D-CAP transmission over a 7-core fiber communication system. Experimental results illustrate that, compared to the traditional 3D constellation, our suggested scheme can obtain 0.6 dB receiving sensitivity gain at the BER∼1 × 10−3. The achieved key space is 10120. Due to its strong security and superior performance, this scheme has a promising future in short-distance secure communication.
Databáze: Directory of Open Access Journals