Title
A set-membership NLMS algorithm with time-varying error bound
Abstract
Set Membership adaptive filtering is known for a number of attractive features, including reduction of computa- tional complexity due to less frequent coefficient updates. This paper addresses the problem of choosing the error bound to be used in SM adaptation algorithms. This choice has often been based on the experience of the designer, and affects directly not only algorithm performance, but also its computational complexity. We propose a new time-varying error bound for a set-membership normalized least mean squares (SM-NLMS) algorithm that yields near constant average coefficient updating rate during both transient and steady state. The expressions given herein not only offer a new method to calculate the error bound automatically, but also describes the behavior of a conventional SM-NLMS algorithm. The results were obtained for the partic- ular application of linear time-invariant channel estimation, but certainly provide insightful hints to other scenarios. I. INTRODUCTION
Year
DOI
Venue
2006
10.1109/ISCAS.2006.1692576
Island of Kos
Keywords
Field
DocType
adaptive filters,channel estimation,least mean squares methods,probability,set theory,adaptation algorithms,channel estimation,coefficient updates,computational complexity,set membership adaptive filtering,set-membership normalized least mean squares,time-varying error bound
Least mean squares filter,Set theory,Mathematical optimization,Algorithm design,Expression (mathematics),Computer science,Algorithm,Filter (signal processing),Error detection and correction,Adaptive filter,Computational complexity theory
Conference
ISSN
ISBN
Citations 
0271-4302
0-7803-9389-9
8
PageRank 
References 
Authors
0.60
3
3
Name
Order
Citations
PageRank
J. F. Galdino1285.29
J. A. Apolinário Jr.2273.36
de Campos, M.L.R.320926.17