Two-level encryption for physical-layer security in OFDM-PON based on multi-scrolls system

被引：12

作者：

Xiao, Yaoqiang ^{[1
]}

Wang, Zhiyi ^{[1
]}

Cao, Jun ^{[1
]}

Long, Caixia ^{[1
]}

Chen, Yating ^{[1
]}

Deng, Rui ^{[1
]}

Shi, Jin ^{[1
]}

Liu, Yi ^{[1
]}

He, Jing ^{[1
]}

机构：

[1] Hunan Univ, Coll Comp Sci & Elect Engn, Changsha 410082, Hunan, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2019年 / 440卷

基金：

中国国家自然科学基金;

关键词：

OFDM-PON; Encryption; Chaos; Multi-scrolls chaotic attractor; PAPR; PAPR REDUCTION; CHAOTIC ENCRYPTION; SCHEME;

D O I：

10.1016/j.optcom.2019.02.033

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The security of orthogonal frequency division multiplexing-based passive optical network (OFDM-PON) system has been an important and hot problem recently. In this paper, a two-level encryption method based on multi-scrolls system for physical-layer security is proposed and experimentally demonstrated in an OFDM-PON system. The proposed scheme is based on a four-order grid multi-scrolls and it can generate chaotic sequences for IQ encryption and row-column chaotic permutation. A huge key space can be achieved in the proposed scheme. Furthermore, a DFT precoding method can be applied to improve the PAPR performance of the system. In the experiment, a secure transmission of 8.9-Gb/s encrypted OFDM signal has been experimentally demonstrated over 50-km standard single-mode fiber (SSMF). The results show that the proposed method can effectively enhance the physical layer security and simultaneously improve the bit-error-rate (BER) performance of the system.

引用

页码：126 / 131

页数：6

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