Channel estimation for multicarrier modulation systems using a time-frequency polynomial model

Author

Wang, Xiaowen ; Liu, K. J Ray

Author_Institution

Wireless Syst. Res., Agere Syst., Murray Hill, NJ

Volume

50

Issue

7

fYear

2002

fDate

7/1/2002 12:00:00 AM

Firstpage

1045

Lastpage

1048

Abstract

Channel estimation is a crucial aspect in the design of multicarrier modulation systems. We propose a channel estimation scheme based on polynomial approximation of the channel responses in both the time and frequency domains. The proposed estimator is more robust to the variations of channel statistics. Our simulation shows that it has more than a 5-dB improvement over the existing methods under practical channel conditions

Keywords

fading channels; modulation; multipath channels; parameter estimation; polynomial approximation; statistical analysis; time-frequency analysis; channel correlation; channel estimation; channel statistics; frequency domain channel response; multicarrier modulation systems; multipath fading channel; polynomial approximation; simulation; time domain channel response; time-frequency polynomial model; Bandwidth; Channel estimation; Design optimization; Estimation error; Frequency domain analysis; Intersymbol interference; Polynomials; Statistics; Time frequency analysis; Transmitters;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/TCOMM.2002.800816

Filename

1021033