Chinese Optics Letters, 2021, 19 (1): 010601, Published Online: Dec. 7, 2020
Physical layer data encryption using two-level constellation masking in 3D-CAP-PON Download: 797次
physical layer data encryption constellation masking carrier-less amplitude and phase modulation passive optical network
Abstract
A novel physical layer data encryption scheme using two-level constellation masking in three-dimensional (3D) carrier-less amplitude and phase modulation (CAP) passive optical network (PON) is proposed in this Letter. The chaotic sequence generated by Chua’s circuit model realizes two-level encryption of displacement masking and constellation rotation for 3D constellations. We successfully conduct an experiment demonstrating 8.7 Gb/s 3D-CAP-8 data transmission over 25 km standard single-mode fiber. With two-level constellation masking, a key space size of 2.1 × 1085 is achieved to bring about high security and good encryption performance, suggesting broad application prospects in future short-range secure communications.
Shuaidong Chen, Bo Liu, Yaya Mao, Jianxin Ren, Xiumin Song, Rahat Ullah, Delin Zhao, Lei Jiang, Shun Han, Jianye Zhao, Jiajia Shen, Xueyang Liu. Physical layer data encryption using two-level constellation masking in 3D-CAP-PON[J]. Chinese Optics Letters, 2021, 19(1): 010601.