DocumentCode
2031547
Title
A modified decision directed channel tracking of 802.11p OFDM system
Author
Chou, Kao-Peng ; Sun, Che-Kang
Author_Institution
Dept. of Commun. Eng., Nat. Central Univ., Jhongli, Taiwan
fYear
2011
fDate
23-25 Aug. 2011
Firstpage
673
Lastpage
677
Abstract
A modified decision directed channel interpolation techniques of orthogonal frequency-division multiplexing (OFDM) system is proposed in this paper. The decision directed channel tracking method in OFDM system always encounters the error propagation problem. To make a practical design, the modified decision directed method in this paper is a low complexity algorithm which can lower the effect of decision error propagation. Simulation results show that the proposed algorithm outperform conventional block interpolations as the SNR exceed certain level.
Keywords
OFDM modulation; block codes; interpolation; least squares approximations; OFDM system; block interpolations; error propagation problem; interpolation techniques; modified decision directed channel tracking; Channel estimation; Channel models; Frequency domain analysis; Heuristic algorithms; Interpolation; Mobile communication; OFDM; channel tracking; least squares (LS) channel estimation; low complexity; reliable coefficient;
fLanguage
English
Publisher
ieee
Conference_Titel
ITS Telecommunications (ITST), 2011 11th International Conference on
Conference_Location
St. Petersburg
Print_ISBN
978-1-61284-668-2
Type
conf
DOI
10.1109/ITST.2011.6060140
Filename
6060140
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