On-line step-size calculation using signal power estimation-tone grouping for frequency-domain equalizer of DMT-based systems

Chih Feng Wu, Muh Tian Shiue, Chorng Kuang Wang

研究成果: 會議貢獻類型會議論文同行評審

1 引文 斯高帕斯(Scopus)

摘要

Based on the signal power estimation (SPE), a tone grouping (TG) approach is proposed to on-line calculate the subchannel step-size for FEQ of DMT systems. It is a reliable method that the SNR loss caused by the misadjustment of LMS algorithm is limited to less than 0.25-dB per tone. Consequently, an SPE-TG look-up table (LUT), which consists of 15 groups from 26 to 2-8, is designed for DMT ADSL systems (as a vehicle). Finally, the simulation results show that the data rate difference between floating step-size and SPE-TG is less than ±0.21%.

原文???core.languages.en_GB???
頁面685-688
頁數4
出版狀態已出版 - 2004
事件2004 IEEE Asia-Pacific Conference on Circuits and Systems, APCCAS 2004: SoC Design for Ubiquitous Information Technology - Tainan, Taiwan
持續時間: 6 12月 20049 12月 2004

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???event.eventtypes.event.conference???2004 IEEE Asia-Pacific Conference on Circuits and Systems, APCCAS 2004: SoC Design for Ubiquitous Information Technology
國家/地區Taiwan
城市Tainan
期間6/12/049/12/04

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