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

Hsuan Yu Liu*, Yi Hsin Yu, Chien Jen Hung, Terng-Yin Hsu, Chen-Yi Lee

*Corresponding author for this work

研究成果: Conference article同行評審

3 引文 斯高帕斯(Scopus)

摘要

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, better performance in terms of MSE and PER can be achieved. Simulation shows the proposed method (1) achieves better 9.0dB - 13.0dB gain in MSE than zero forcing criterion and better 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.

原文English
期刊Proceedings - IEEE International Symposium on Circuits and Systems
2
DOIs
出版狀態Published - 14 七月 2003
事件Proceedings of the 2003 IEEE International Symposium on Circuits and Systems - Bangkok, Thailand
持續時間: 25 五月 200328 五月 2003

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