Channel fading estimation with unequally spaced pilot symbols

Author

Xiao, Chengshan ; Olivier, Jan C.

Author_Institution

Dept. of Electr. & Comput. Eng., Missouri Univ., Columbia, MO, USA

Volume

2

fYear

2002

fDate

2002

Abstract

A reliable and effective method is proposed for estimating mobile channel fading with unequally spaced pilot symbols. By employing a least squares method with time-variant complex-valued-coefficient polynomials, it is proven that time-varying and frequency nonselective channel fading of each slot can be estimated by the product of a constant matrix and the fading at pilot symbol locations of the slot. The constant matrix is further optimally calculated by a least squares (off-line) training method. Simulation results indicate that our method provides very accurate estimation of channel fading

Keywords

fading channels; least squares approximations; matrix algebra; mobile radio; parameter estimation; polynomials; time-varying channels; channel fading estimation; complex-valued-coefficient polynomials; constant matrix; frequency nonselective channel; least squares method; mobile channel; pilot symbols; time-variant polynomials; time-varying channel; Bit error rate; Demodulation; Fading; Frequency estimation; Least squares methods; Mobile communication; Mobile computing; Reliability engineering; Standards development; Wiener filter;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on

Conference_Location

Phoenix-Scottsdale, AZ

Print_ISBN

0-7803-7448-7

Type

conf

DOI

10.1109/ISCAS.2002.1011036

Filename

1011036