Title :
A modified constrained stability-least mean square algorithm and its application in chaos communication
Author :
Song, Guodong ; Liu, Guangyuan ; Liu, Wei ; Long, Zhengji ; Wang, Shiyuan
Author_Institution :
School of Electronic and Information Engineering, Southwest University, Chongqing, China
Abstract :
The constrained stability-least mean square (CSLMS) provides faster convergence speed and higher flexibility than the normalized least mean square (NLMS) by minimizing the Lagrangian function under a constraint stability update condition. In this paper, a modified CSLMS is proposed by adaptively adjusting step size according to a nonlinear function based on error signal. The modified CS-LMS is then applied to perform chaos communication. Simulation results show that the proposed novel CS-LMS can effectively recover information signals, and outperform the other LMS algorithms.
Keywords :
chaotic parameter modulation; constrained stability-least mean square (CS-LMS); least mean square (LMS); step size;
Conference_Titel :
Image and Signal Processing (CISP), 2012 5th International Congress on
Conference_Location :
Chongqing, Sichuan, China
Print_ISBN :
978-1-4673-0965-3
DOI :
10.1109/CISP.2012.6469634
