Research and implementation for 2D MMSE channel estimation

Author

Yao Liang ; Weiou Zhou ; Mingyu Zhou ; Li He

Author_Institution

Aerosp. Commun. & Terminal Applic. Technol. Eng. Lab., Tsinghua Univ. in Shenzhen, Shenzhen, China

fYear

2014

fDate

19-23 Oct. 2014

Firstpage

1608

Lastpage

1612

Abstract

Channel estimation is a key technology of the Orthogonal Frequency Division Multiplexing. In this article, given the maximum Doppler frequency and maximum delay spread, we design the optimized pilot pattern and the taps for Wiener interpolation filter according to the MMSE algorithm, and implement the LMMSE channel estimation in FPGA. Compared to two-dimensional Wiener filter, its performance is next to ideal channel estimation and it costs less hardware resource.

Keywords

Doppler shift; OFDM modulation; Wiener filters; channel estimation; interpolation; least mean squares methods; 2D MMSE channel estimation; FPGA; LMMSE channel estimation; Wiener interpolation filter; maximum Doppler frequency; maximum delay spread; optimized pilot pattern; orthogonal frequency division multiplexing; two-dimensional Wiener filter; Channel estimation; Field programmable gate arrays; Frequency-domain analysis; Hardware; Interpolation; OFDM; Wiener filters; 2D MMSE; Channel Estimation; FPGA; OFDM;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing (ICSP), 2014 12th International Conference on

Conference_Location

Hangzhou

ISSN

2164-5221

Print_ISBN

978-1-4799-2188-1

Type

conf

DOI

10.1109/ICOSP.2014.7015267

Filename

7015267