Affiliation:
1. Institute of Electronics and Information, Sun Yat-sen University
2. Institute of Optics and Electronics, Nanjing University of Information Science & Technology
Abstract
This Letter proposes a high-security and high-order signal transmission method that is based on delta-sigma modulation (DSM) and discrete memristive-enhanced chaos (DMEC). We employ the DMEC for the encryption of DSM signals to achieve a key space of 1098 in size. Moreover, we demonstrated a high-security transmission of 16384QAM signals using the DSM over a 25 km single-mode fiber in the intensity-modulated direct detection (IMDD) system. The experimental results show that the proposed ultrahigh-order transmission scheme based on DMEC and DSM guarantees high signal transmission performances with improved security and a key sensitivity level of 10−17.
Funder
National Key Research and Development Program of China
National Natural Science Foundation of China
Jiangsu Provincial Key Research and Development Program
The Natural Science Foundation of the Jiangsu Higher Education Institutions of China
The Startup Foundation for Introducing Talent of NUIST
Cited by
2 articles.
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