In:
Optics Letters, Optica Publishing Group, Vol. 47, No. 1 ( 2022-01-01), p. 186-
Kurzfassung:
In this paper, we propose a high-security orthogonal chirped division multiplexing passive optical network (OCDM-PON) based on three-dimensional (3D) encryption, including the encryption of bitstream, constellation, and subcarriers. Cascaded fractional-order chaotic mapping (CFCM) is used to generate three masking factors to achieve ultra-high-security encryption in three different dimensions. Logistic mapping is used to control the order of the scheme, which effectively increases the key space to 10 152 and improves the security performance of the system. The experiment proves the feasibility of the encryption scheme on OCDM after 16 orthogonal amplitude modulation (16QAM). The encrypted 16QAM-OCDM signal transmits data at a rate of 56 Gb/s on a 2-km 7-core optical fiber, and simultaneously transmits the 16QAM orthogonal frequency division multiplexing (OFDM) signal under the same conditions. It is shown that OCDM-PON is 1.3 dB higher than OFDM-PON in terms of receiver sensitivity when the bit error rate (BER) is 10 −3 .
Materialart:
Online-Ressource
ISSN:
0146-9592
,
1539-4794
Sprache:
Englisch
Verlag:
Optica Publishing Group
Publikationsdatum:
2022
ZDB Id:
243290-0
Bookmarklink