Open AccessEnhanced secure 4-D modulation space optical multi-carrier system based on joint constellation and Stokes vector scrambling
Author(s) -
Bo Liu,
Lijia Zhang,
Xiangjun Xin
Publication year - 2018
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.006890
Subject(s) - scrambling , computer science , encryption , constellation , modulation (music) , chaotic , key space , key (lock) , optics , electronic engineering , telecommunications , physics , algorithm , computer network , artificial intelligence , engineering , computer security , astronomy , acoustics
This paper proposes and demonstrates an enhanced secure 4-D modulation optical generalized filter bank multi-carrier (GFBMC) system based on joint constellation and Stokes vector scrambling. The constellation and Stokes vectors are scrambled by using different scrambling parameters. A multi-scroll Chua's circuit map is adopted as the chaotic model. Large secure key space can be obtained due to the multi-scroll attractors and independent operability of subcarriers. A 40.32Gb/s encrypted optical GFBMC signal with 128 parallel subcarriers is successfully demonstrated in the experiment. The results show good resistance against the illegal receiver and indicate a potential way for the future optical multi-carrier system.