光学学报, 2020, 40 (9): 0906001, 网络出版: 2020-05-06
基于光编/解码技术的抗截获通信系统研究 下载: 1000次
Anti-Interception Communication System Based on an Optical Encoding/Decoding Technology
光通信 抗截获通信 光码分多址 物理层安全性 光编/解技术 optical communications anti-interception communication optical code-division multiple-access physical-layer security optical encoding/decoding technology
摘要
为了增强光纤通信系统的物理层安全性,提出了一种基于光编/解码技术的新型抗截获通信系统。由于传统地址码的码字容量都相对较小,合法用户使用的地址码容易受到窃听者的强力搜索攻击。一旦用户地址码被获得,光纤信道中传输的所有用户信息将可被窃听者窃取。为了解决这个问题,构造了一种大容量的二维跳频/扩时地址码,并描述了可重构编/解码器的实现方法;设计了一种新型的抗截获通信系统方案,建立了窃听信道模型;最后,利用VPI transmission Maker Optical Systems仿真软件,验证了抗截获通信系统的传输性能和安全性能。仿真结果表明,基于光码分多址的编/解码技术,可以实现一种高速率、长距离的抗截获通信系统。
Abstract
To enhance the physical-layer security of optical fiber communication systems, a novel anti-interception communication system based on an optical encoding/decoding technology is proposed in this study. Owing to the relatively small capacity of the traditional address codes, the address codes used by the legitimate users are vulnerable to the brute-force searching attacks by eavesdroppers. Once the user’s address code is obtained, all the information transmitted in the fiber channel will be stolen by the eavesdropper. To address this problem, a new type of 2D-wavelength-hopping/time-spreading (WH/TS) code is first constructed, and the implementation of the reconfigurable encoder/decoder is described. Then, the novel scheme of anti-interception communication system is designed, and a wiretap channel model is established. Finally, the transmission and security performances of the anti-interception communication system are studied using the VPI transmission Maker Optical Systems simulation software. The simulation results show that a high-speed and long-distance anti-interception communication system can be achieved based on the proposed optical code-division multiple-access coding/decoding technology.
谭业腾, 蒲涛, 郑吉林, 周华, 苏国瑞. 基于光编/解码技术的抗截获通信系统研究[J]. 光学学报, 2020, 40(9): 0906001. Yeteng Tan, Tao Pu, Jilin Zheng, Hua Zhou, Guorui Su. Anti-Interception Communication System Based on an Optical Encoding/Decoding Technology[J]. Acta Optica Sinica, 2020, 40(9): 0906001.