NDLI: Estimation of Basis Frequencies for Time-Varying SIMO Channels: A Second-Order Method

Content Provider	IEEE Xplore Digital Library
Author	Dezhong Peng Yong Xiang Defeng Huang
Copyright Year	1991
Abstract	The complex exponential basis expansion model (CE-BEM) provides an accurate description for the time-varying (TV) channels encountered in mobile communications. Many blind channel identification and equalization approaches based on the CE-BEM require precise knowledge of the basis frequencies of TV channels. Existing methods for basis frequency estimation usually resort to the higher-order statistics of channel outputs and impose strict constraints on the source signal. In this paper, we propose a novel method to estimate the basis frequencies for blind identification and equalization of time-varying single-input multiple-output (SIMO) finite-impulse-response (FIR) channels. The proposed method exploits only the second-order statistics of channel outputs and does not require strong conditions on the source signal. As a result, it exhibits superior performance to the existing basis frequency estimation methods. The validity of our method is demonstrated by numerical simulations.
Sponsorship	IEEE Signal Processing Society
Starting Page	4026
Ending Page	4039
Page Count	14
File Size	608578
File Format	PDF
ISSN	1053587X
Volume Number	58
Issue Number	8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-08-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Frequency estimation Blind equalizers TV Higher order statistics Finite impulse response filter Australia Signal processing Mobile communication Numerical simulation Bandwidth time-varying SIMO channel Basis frequency complex exponential basis expansion second-order statistics
Content Type	Text
Resource Type	Article
Subject	Signal Processing Electrical and Electronic Engineering

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