Kalman filter channel estimation based on Comb-type pilots for OFDM system in time and frequency -selective fading environments

Author

Mahmoud, Hala ; Mousa, Allam ; Saleem, Rashid

Author_Institution

Dept. of Electron. Eng., Al-Quds Univ., Jerusalem

fYear

2008

fDate

8-10 Aug. 2008

Firstpage

59

Lastpage

64

Abstract

Kalman-filter method have been used for the estimation of time-frequency-selective fading channels in OFDM systems, the estimation is based on Comb-type pilot frequencies arrangement, the channel coefficients that belong to the pilot subcarriers are estimated. Then these estimates are interpolated using different types of interpolations like; Low pass interpolation, Spline cubic interpolation or Linear interpolation. The performances of all schemes have been compared by finding Bit Error Rate where BPSK modulation scheme was used.

Keywords

Kalman filters; OFDM modulation; channel estimation; fading channels; interpolation; phase shift keying; BPSK modulation; Kalman filter channel estimation; OFDM system; comb type pilots; frequency selective fading environments; time selective fading environments; Channel estimation; Discrete Fourier transforms; Fading; Frequency estimation; Interpolation; Kalman filters; Least squares approximation; OFDM modulation; Recursive estimation; Spline; Channel Estimation; Kalman Filtering; OFDM; time-varying channels;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Computers and Applications, 2008. MIC-CCA 2008. Mosharaka International Conference on

Conference_Location

Amman

Print_ISBN

978-9927-486-02-0

Electronic_ISBN

978-9927-486-03-7

Type

conf

DOI

10.1109/MICCCA.2008.4669851

Filename

4669851