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http://dx.doi.org/10.7776/ASK.2009.28.3.245

Variable Step Size LMS Algorithm Using the Error Difference  

Woo, Hong-Chae (대구대학교 정보통신대학 정보통신공학부)
Publication Information
The Journal of the Acoustical Society of Korea / v.28, no.3, 2009 , pp. 245-250 More about this Journal
Abstract
In communications and signal processing area, a number of least mean square adaptive algorithms have been used because of simplicity and robustness. However the LMS algorithm is known to have slow and non-uniform convergence. Various variable step size LMS adaptive algorithms have been introduced and researched to speed up the convergence rate. A variable step size LMS algorithm using the error difference for updating the step size is proposed. Compared with other algorithms, simulation results show that the proposed LMS algorithm has a fast convergence. The theoretical performance of the proposed algorithm is also analyzed for the steady state.
Keywords
Adaptive Filter; LMS Algorithm; Adaptive Equalizer; MSE Convergence;
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