Telecommunications Science ›› 2015, Vol. 31 ›› Issue (1): 53-57.doi: 10.11959/j.issn.1000-0801.2015005

• research and development • Previous Articles     Next Articles

A Novel FM-DCSK Secure Communication System

Gang Zhang,Yuan Wang,Ying Wang   

  1. Chongqing Key Laboratory of Signal and Information Processing， Chongqing University of Posts and Telecommunications, Chongqing 400065, China
  • Online:2015-01-15 Published:2017-02-21
  • Supported by:
    The National Natural Science Foundation of China;The National Natural Science Foundation of China;The National Natural Science Foundation of China;The Program for New Century Excellent Talents in University;The Project of Key Laboratory of Signal and Information Processing of Chongqing;The Chongqing Distinguished Youth Foundation;The Natural Science Foundation of Chongqing;The Natural Science Foundation of Chongqing;The Natural Science Foundation of Chongqing;The Natural Science Foundation of Chongqing;The Research Project of Chongqing Educational Commission;The Research Project of Chongqing Educational Commission

RichHTML

0

PDF下载

522

Abstract:

The bit energy of chaotic signals in DCSK system is not stable,which will cause the estimation interference and the bit error rate decline. At the same time, the system's transmission rate is lower and the security is poorer compared with other system. In order to solve these problems, a novel FM-DCSK secure communication system was proposed which was combined the FM modulation with the modified DCSK system.The bit energy of signals remained stable by using FM modulation so that the BER performance in such system can be improved. Meanwhile, the system was also combined with the modified DCSK system which uses two-channel scheme, therefore it can improve the transmission efficiency and further improve the security performance. Finally, the theoretical analysis and the simulation results prove that the relative performance in this proposed system can be greatly improved.

Key words: chaos secure communication, FM modulation, novel FM-DCSK

No Suggested Reading articles found!
Copyright of Website: China InfoCom Media Group
Address: F2, Beiyang Chenguang Building, Shunbatiao No.1 Courtyard, Fengtai District, Beijing, China       Postal Code: 100079
Tel: （010）53879277、53879278、53879279        Email: dxkx@ptpress.com.cn