短参多进制保密差分混沌键控系统

doi:10.3969/j.issn.1001-506X.2020.12.28

系统工程与电子技术 ›› 2020, Vol. 42 ›› Issue (12): 2899-2905.doi: 10.3969/j.issn.1001-506X.2020.12.28

短参多进制保密差分混沌键控系统

张公泉¹(), 李晓辉¹(), 陈晓婷^1,²(), 邢昊天³()

1. 安徽大学电子信息工程学院, 安徽合肥, 230601
2. 合肥师范学院电子信息系统仿真设计安徽省重点实验室, 安徽合肥, 230601
3. 国家计算机网络应急技术处理协调中心, 安徽合肥, 230601

收稿日期:2020-03-09 出版日期:2020-12-01 发布日期:2020-11-27
作者简介:张公泉(1990-),男,博士研究生,主要研究方向为混沌通信、保密通信。E-mail:18158876769@163.com|李晓辉(1961-),男,教授,博士研究生导师,博士,主要研究方向为无线通信、信息论。E-mail:1034563206@qq.com|陈晓婷(1987-),女,讲师,博士研究生,主要研究方向为智能信息处理。E-mail:181574854@qq.com|邢昊天(1990-),男,本科,主要研究方向为信息安全。E-mail:332395102@qq.com
基金资助:
国家自然科学基金青年科学基金(61501002)

Short-reference M-ary security differential chaos shift keying system

Gongquan ZHANG¹(), Xiaohui LI¹(), Xiaoting CHEN^1,²(), Haotian XING³()

1. College of Electronic Information Engineering, Anhui University, Hefei 230601, China
2. Anhui Province Key Laboratory of Simulation and Design for Electronic Information System, Hefei Normal University, Hefei 230601, China
3. National Internet Emergency Center Anhui Branch Center, Hefei 230601, China

Received:2020-03-09 Online:2020-12-01 Published:2020-11-27

摘要/Abstract

摘要：

相对于传统差分混沌键控(differential chaos shift keying, DCSK)系统,短参考DCSK(short reference DCSK, SR-DCSK)系统在一定程度上提升了传输速率和能量利用率,但安全性能降低。针对该问题,提出了一种短参多进制保密DCSK(short-reference M-ary security DCSK, SRMS-DCSK)系统。该系统使用置乱矩阵和移位矩阵构造置乱矩阵组,使置乱矩阵在提高混沌信号保密性的同时还能携带多进制比特信息,这不仅能提高系统的安全性,同时也能进一步提升能量利用率。SRMS-DCSK系统的性能提升通过与同类型的系统进行对比得到验证。采用高斯近似法推导了不同信道下误比特率(bit error rate, BER)的解析表达式,并在仿真对比中得到验证。

关键词: 短参考差分混沌键控, 多进制, 保密性能, 能量利用率

Abstract:

Compared with the traditional differential chaos shift keying (DCSK) system, the transmission rate and energy utilization rate is improved by the short reference DCSK (SR-DCSK) system to a certain extent, but which reduces its security performance. To solve this problem, the short reference M-ary security (SRMS-DCSK) system is proposed. In this scheme, a scrambling matrix group is constructed by the scrambling matrix and the shift matrix, so that the scrambling matrix can not only improve the security of the chaotic signals, but also carry the multi-level bit information, which can not only improve the security of the system, but also further improve the energy utilization. The performance improvement of the SRMS-DCSK is verified by comparing with the same type of system. The analytic expressions of bit error rate (BER) in different channels are derived by using the Gaussian approximation method, and which is verified by simulation.

Key words: short reference differential chaos shift keying (SR-DCSK), M-ary, security, energy utilization

中图分类号:

TN911.3

张公泉, 李晓辉, 陈晓婷, 邢昊天. 短参多进制保密差分混沌键控系统[J]. 系统工程与电子技术, 2020, 42(12): 2899-2905.

Gongquan ZHANG, Xiaohui LI, Xiaoting CHEN, Haotian XING. Short-reference M-ary security differential chaos shift keying system[J]. Systems Engineering and Electronics, 2020, 42(12): 2899-2905.

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调制方案	比特能量
DCSK	2BT_cE[C_k²]
SRMR-DCSK	$\frac{\left(R+B \log _{2} M\right) T_{c}}{\log _{2} M} \mathrm{E}\left[C_{k}^{2}\right] $
SRMS-DCSK	$ \frac{(R+B) T_{c}}{\log _{2} M} \mathrm{E}\left[C_{k}^{2}\right]$

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短参多进制保密差分混沌键控系统

Short-reference M-ary security differential chaos shift keying system

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