Variable step LMS algorithm using the accumulated instantaneous error concept
Abu-Salim, K.F. and Gong, Y. (2008) Variable step LMS algorithm using the accumulated instantaneous error concept. In: Ao, S.I., Gelman, L., Hukins, D.W.L., Hunter, A. and Korsunsky, A.M. (eds.) World congress on engineering 2008. Lecture notes in engineering and computer science, 1-2. International Association of Engineers, Hong Kong, pp. 474-478. ISBN 9789889867195
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The convergence speed of the standard Least Mean Square adaptive array may be degraded in mobile communication environments. Different conventional variable step size LMS algorithms were proposed to enhance the convergence speed while maintaining low steady state error. In this paper, a new variable step LMS algorithm, using the accumulated instantaneous error concept is proposed. In the proposed algorithm, the accumulated instantaneous error is used to update the step size parameter of standard LMS is varied. Simulation results show that the proposed algorithm is simpler and yields better performance than conventional variable step LMS.
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