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2016 | OriginalPaper | Chapter

A Robust Leaky-LMS Algorithm for Sparse System Identification

Authors : Cemil Turan, Yedilkhan Amirgaliev

Published in: Discrete Optimization and Operations Research

Publisher: Springer International Publishing

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Abstract

In this paper, a new Leaky-LMS (LLMS) algorithm that modifies and improves the Zero-Attracting Leaky-LMS (ZA-LLMS) algorithm for sparse system identification has been proposed. The proposed algorithm uses the sparsity of the system with the advantages of the variable step-size and l 0 -norm penalty. We compared the performance of our proposed algorithm with the conventional LLMS and ZA-LLMS in terms of the convergence rate and mean-square-deviation (MSD). Additionally, the computational complexity of the proposed algorithm has been derived. Simulations performed in MATLAB showed that the proposed algorithm has superiority over the other algorithms for both types of input signals of additive white Gaussian noise (AWGN) and additive correlated Gaussian noise (ACGN).

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Metadata
Title
A Robust Leaky-LMS Algorithm for Sparse System Identification
Authors
Cemil Turan
Yedilkhan Amirgaliev
Copyright Year
2016
DOI
https://doi.org/10.1007/978-3-319-44914-2_42

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