Performance-Improved Secure OFDM Transmission Using Chaotic Active Constellation Extension

被引：29
作者：
Zhong, Ju [1 ]
Yang, Xuelin [1 ]
Hu, Weisheng [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Dept Elect Engn, State Key Lab Adv Opt Commun Syst & Networks, Shanghai 200240, Peoples R China
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2017年 / 29卷 / 12期
基金：
中国国家自然科学基金;
关键词：
Chaos encryption; active constellation extension (ACE); peak-to-average power ratio (PAPR); orthogonal frequency-division multiplexing (OFDM); PHYSICAL LAYER SECURITY; PON; REDUCTION; SCHEME;
D O I：
10.1109/LPT.2017.2700861
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We propose and demonstrate a physical-layer security scheme using chaotic active constellation extension (ACE) in orthogonal frequency division multiplexing (OFDM). A super OFDM frame is generated by chaotic frame interleaving in ACE, where hyper digital chaos is applied to generate the chaotic interleaving vectors. A huge key space of size 2048! is provided via the multi-fold encryption to guarantee the secure OFDM data transmission, while the transmission performance is effectively improved via the chaotic ACE algorithm. Secure transmission of 8.9-Gb/s 16-QAM encrypted OFDM signals is demonstrated over a 20-km standard single-mode fiber, which shows reliable robustness against any exhaustive attacks. Moreover, the proposed chaotic ACE scheme improves the spectral efficiency of OFDM transmission, since it does not require any sideband to transmit the frame-interleaving information.
引用
收藏
页码：991 / 994
页数：4
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