NDLI: The adaptive matching pursuit algorithm for estimation and equalization of sparse time-varying channels

Content Provider	IEEE Xplore Digital Library
Author	Cotter, S.F. Rao, B.D.
Copyright Year	2000
Description	Author affiliation: Dept. of Electr. & Comput. Eng., California Univ., San Diego, La Jolla, CA, USA (Cotter, S.F.)
Abstract	This paper addresses issues related to the estimation and equalization of channels with a large delay spread and an impulse response with significant values only over small regions. For a time-varying environment, an adaptive matching pursuit (AMP) algorithm is considered which updates the channel estimate while exploiting the channel's sparsity. From the channel estimate, the equalizer taps are then derived. We show through simulations that using AMP to track the time-varying channel gives significant improvement in equalization performance over using the LMS or RLS algorithms. We also demonstrate how ANP may be modified to more quickly adapt to a fast time-varying channel.
Starting Page	1772
Ending Page	1776
File Size	413266
Page Count	5
File Format	PDF
ISBN	0780365143
ISSN	10586393
DOI	10.1109/ACSSC.2000.911292
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-10-29
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Matching pursuit algorithms Pursuit algorithms Adaptive equalizers Time-varying channels Least squares approximation Delay estimation Resonance light scattering Intersymbol interference HDTV Underwater acoustics
Content Type	Text
Resource Type	Article
Subject	Signal Processing Computer Networks and Communications

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