Title :
The improved differential chaos shift keying scheme
Author :
Liu, Jianbo ; Ye, Cliunfei ; Zhang, Shujing ; Song, Wentao
Author_Institution :
Dept. of Electron. Eng., Shanghai Jiaotong Univ., China
Abstract :
In the differential chaos shift keying scheme (DCSK), as the chaotic signal is not periodic, the energy per bit carried by the chaotic signal is not constant and can only be estimated; this estimation has a non-zero variance that reduces the noise performance of the system. In this paper, a novel DCSK with chaotic polyphase sequences is presented. The estimation problem can be solved efficiently using the properties of chaotic polyphase sequences, and this scheme can be implemented easily
Keywords :
chaos; digital communication; modulation; parameter estimation; sequences; DCSK; chaotic polyphase sequences; chaotic signal; differential chaos shift keying scheme; energy estimation; noise performance; nonzero variance; Chaos; Chaotic communication; Correlators; Demodulation; Histograms; Noise reduction; Phase locked loops; Phase modulation; Power engineering and energy; Transmitters;
Conference_Titel :
Communication Technology Proceedings, 2000. WCC - ICCT 2000. International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-6394-9
DOI :
10.1109/ICCT.2000.890918
