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2003
IEEE

Combining adaptive smoothing and decision-directed channel estimation schemes for OFDM WLAN systems

8 years 11 months ago
Combining adaptive smoothing and decision-directed channel estimation schemes for OFDM WLAN systems
In this paper, a new channel estimation method for OFDM WLAN systems is proposed. This proposal mainly consists of smoothing filtering and decision-directed tracking loop schemes, where the former is used to enhance performance at low SNR and the latter is exploited to enhance performance at high SNR respectively. Together with an adaptive channel management, bener performance in terms of MSE and PER can be achieved. Simulation shows the proposed method ( I ) achieves better 9.0dB - 13.0dB gain in MSE than zero forcing criterion and bener 2.0dB gain in MSE than conventional approaches in BPSK transmission, and (2) contributes 0.8dB. 2.0dB gain in SNR for 10%PER in different transmission modes.
Hsuan-Yu Liu, Yi-Hsin Yu, Chien-Jen Hung, Temg-Yin
Added 04 Jul 2010
Updated 04 Jul 2010
Type Conference
Year 2003
Where ISCAS
Authors Hsuan-Yu Liu, Yi-Hsin Yu, Chien-Jen Hung, Temg-Yin Hsu, Chen-Yi Lee
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