基于混沌的保密光纤接入网理论与技术研究

项目名称： 基于混沌的保密光纤接入网理论与技术研究

项目编号： No.61301156

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 无线电电子学、电信技术

项目作者： 江宁

作者单位： 电子科技大学

项目金额： 25万元

中文摘要： 光纤接入网作为当前最具应用前景的宽带接入网技术，其信息保密性越来越受到人们的重视。混沌信号与生俱来的保密特性能增强通信系统物理层的信息保密性，使其在保密通信领域备受亲睐。目前，光纤接入网和混沌保密通信各自的研究正如火如荼地进行，而关于两者结合的产物-基于混沌的保密光纤接入网的研究还不多见，相关的理论体系构建、通信性能和信息保密性能分析等问题都有待深入探讨。本课题将激光混沌保密通信与光纤接入网相结合，创新性地提出并构建基于混沌同步和基于混沌随机数扰码的保密光纤接入网的理论体系和仿真模型,并数值研究其混沌载波同步性能、通信性能以及信息保密性；此外，还对支持ONU互通信的新型混沌保密光纤接入网技术进行探索研究。本课题研究有利于增强光纤接入网物理层的信息保密性，对发展保密光通信网络也有重要的参考作用。

中文关键词： 光通信；光通信接入；光通信网络；混沌保密通信；混沌编码

英文摘要： Optical-fiber access network is the most promising broadband access network technology, and its information security has been attracting more and more attention. Meanwhile, chaotic signal has been treated as a good candidate in the field of secure communication, for that its inherent privacy can enhance the information security at the physical layer of communication system. At present, studies are springing up in both areas of optical-fiber access network and chaotic secure communication. Nevertheless, their combination has been rarely addressed, and dozens of issues such as the construction of theoretical architecture, the investigations on communication performance and information security performance, remain to be further investigated. By introducing the chaos-based secure communication technology into the optical-fiber access network, this project innovatively proposes and constructs the theoretical architectures and simulation models for the secure optical-fiber networks that are based on the chaos synchronization and chaos scrambling. Furthermore, the chaotic carrier synchronization performance, the communication performance and information security are numerically studied. In addition, the novel chaos-based secure optical-fiber access network that allows the ONUs to communicate with each other is also exp

英文关键词： optical communication；optical communication access；optical communication network；chaotic secure communication；chaotic encoding