Physical layer data encryption using two-level constellation masking in 3D-CAP-PON  

作　　者：Shuaidong Chen Bo Liu Yaya Mao Jianxin Ren Xiumin Song Rahat Ullah Delin Zhao Lei Jiang Shun Han Jianye Zhao Jiajia Shen Xueyang Liu 陈帅东;刘博;毛雅亚;任建新;宋秀敏;赵德林;姜蕾;韩顺;赵建业;沈佳佳;刘雪阳(Nanjing University of Information Science and Technology,Nanjing 210044,China;Beijing University of Posts and Telecommunications,Beijing 100876,China;University of Wollongong,NSW 2522,Australia)

机构地区：[1]Nanjing University of Information Science and Technology,Nanjing 210044,China [2]Beijing University of Posts and Telecommunications,Beijing 100876,China [3]University of Wollongong,NSW 2522,Australia

出　　处：《Chinese Optics Letters》2021年第1期1-6,共6页中国光学快报（英文版）

基　　金：the National Key Research and Development Program of China(No.2018YFB1801302);National Natural Science Foundation of China(Nos.61835005,61822507,61522501,61475024,61675004,61705107,61727817,61775098,61720106015,and 61875248);Beijing Young Talent(No.2016000026833ZK15);Open Fund of IPOC(BUPT)(No.IPOC2019A011);Jiangsu Talent of Innovation and Entrepreneurship,Jiangsu Team of Innovation and Entrepreneurship,and Postgraduate Research&Practice Innovation Program of Jiangsu Province(No.KYCX200963)。

摘　　要：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 for3 D constellations.We successfully conduct an experiment demonstrating 8.7 Gb/s 3 D-CAP-8 data transmission over25 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.

关 键 词：physical layer data encryption constellation masking carrier-less amplitude and phase modulation passive optical network 

分 类 号：TN929.1[电子电信—通信与信息系统]