Analysis of the LS estimation error on a Rayleigh fading channel

Author

Ekman, Torbjörn

Author_Institution

Signals & Syst., Uppsala Univ., Sweden

Volume

1

fYear

2001

fDate

2001

Firstpage

372

Abstract

A channel in a wireless communication link is often treated as time invariant over an estimation interval, during which a least squares estimate of the channel is calculated, using training symbols. By a second order Taylor expansion of the channel, the estimation error due to time variation, can be approximated as a bias and an excess error which are due to the curvature and linear change of the channel, respectively. Approximate expressions for the variance of the estimation error in a Rayleigh fading channel, are presented here

Keywords

Rayleigh channels; error analysis; least squares approximations; mobile radio; parameter estimation; time-varying channels; LS estimation error; Rayleigh fading channel; bias; curvature; estimation interval; excess error; least squares estimate; linear change; second order Taylor expansion; time variation; wireless communication link; Channel estimation; Estimation error; Fading; Finite impulse response filter; High level synthesis; Land mobile radio; Least squares approximation; Noise measurement; Taylor series; Vectors;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd

Conference_Location

Rhodes

ISSN

1090-3038

Print_ISBN

0-7803-6728-6

Type

conf

DOI

10.1109/VETECS.2001.944867

Filename

944867