Title :
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
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;
Conference_Titel :
Signal Processing (ICSP), 2014 12th International Conference on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4799-2188-1
DOI :
10.1109/ICOSP.2014.7015267
