A modified decision directed channel tracking of 802.11p OFDM system

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...

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Bibliographic Details
Main Authors: Kao-Peng Chou, Che-Kang Sun
Format: Conference Proceeding
Language:English
Subjects:
Channel estimation
Channel models
channel tracking
Frequency domain analysis
Heuristic algorithms
Interpolation
least squares (LS) channel estimation
low complexity
Mobile communication
OFDM
reliable coefficient
Online Access:Request full text
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Summary: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.
DOI:10.1109/ITST.2011.6060140