DocumentCode
2293258
Title
Enhanced Decision-Directed Channel Estimation of Time-Varying Flat MIMO Channels
Author
Eitel, Emna ; Speidel, Joachim
Author_Institution
Univ. of Stuttgart, Stuttgart
fYear
2007
fDate
3-7 Sept. 2007
Firstpage
1
Lastpage
5
Abstract
This paper presents a combined pilot-assisted and decision-directed approach to estimate a Rayleigh flat fading MIMO channel. The suggested algorithm is very attractive in comparison to other tracking techniques due to its simplicity and numerical robustness. We introduce a moving-average filter to suppress the noise and show that optimizing the filter parameters such as length and initialization coefficients leads to significant performance improvement. Simulation results for different Doppler frequencies show the effectiveness of the proposed scheme.
Keywords
MIMO communication; Rayleigh channels; channel estimation; filtering theory; time-varying systems; Doppler frequencies; Rayleigh channel; decision-directed channel estimation; moving-average filter; time-varying flat MIMO channels; AWGN; Additive noise; Channel estimation; Filtering; Filters; Frequency; MIMO; Phase estimation; Rayleigh channels; Signal to noise ratio;
fLanguage
English
Publisher
ieee
Conference_Titel
Personal, Indoor and Mobile Radio Communications, 2007. PIMRC 2007. IEEE 18th International Symposium on
Conference_Location
Athens
Print_ISBN
978-1-4244-1144-3
Electronic_ISBN
978-1-4244-1144-3
Type
conf
DOI
10.1109/PIMRC.2007.4394247
Filename
4394247
Link To Document