Adaptive sparse equalizer robust to fast fading and long delay spread for ATSC DTV

No Ik Heo; Dong Seog Han; Hae Sock Oh

doi:10.1109/TCE.2005.1510487

Adaptive sparse equalizer robust to fast fading and long delay spread for ATSC DTV

No Ik Heo, Dong Seog Han, Hae Sock Oh

School of Electronics Engineering

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

An equalization algorithm is proposed to guarantee a stable performance in fast fading channels for the advanced television system committee (ATSC) digital television (DTV) systems. In channels with high Doppler shifts, the conventional equalizer shows severe performance degradation. The conventional equalizer with long filter taps to overcome long delay profiles is not suitable for fast fading channels. The proposed sparse equalization algorithm is robust to the multipaths with long delay profiles as well as fast fading by utilizing channel estimation and an equalizer initialization. Fast fading channels with high Doppler shifts can be compensated with an adaptive tap selection technique as well as variable step-sizes. Under the ATSC test channels, the proposed algorithm, is analyzed and compared with the conventional equalizer.

Original language	English
Pages (from-to)	803-808
Number of pages	6
Journal	IEEE Transactions on Consumer Electronics
Volume	51
Issue number	3
DOIs	https://doi.org/10.1109/TCE.2005.1510487
State	Published - Aug 2005

Keywords

8-VSB
Adaptive equalizer
Sparse equalizer

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10.1109/TCE.2005.1510487

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title = "Adaptive sparse equalizer robust to fast fading and long delay spread for ATSC DTV",

abstract = "An equalization algorithm is proposed to guarantee a stable performance in fast fading channels for the advanced television system committee (ATSC) digital television (DTV) systems. In channels with high Doppler shifts, the conventional equalizer shows severe performance degradation. The conventional equalizer with long filter taps to overcome long delay profiles is not suitable for fast fading channels. The proposed sparse equalization algorithm is robust to the multipaths with long delay profiles as well as fast fading by utilizing channel estimation and an equalizer initialization. Fast fading channels with high Doppler shifts can be compensated with an adaptive tap selection technique as well as variable step-sizes. Under the ATSC test channels, the proposed algorithm, is analyzed and compared with the conventional equalizer.",

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AU - Oh, Hae Sock

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N2 - An equalization algorithm is proposed to guarantee a stable performance in fast fading channels for the advanced television system committee (ATSC) digital television (DTV) systems. In channels with high Doppler shifts, the conventional equalizer shows severe performance degradation. The conventional equalizer with long filter taps to overcome long delay profiles is not suitable for fast fading channels. The proposed sparse equalization algorithm is robust to the multipaths with long delay profiles as well as fast fading by utilizing channel estimation and an equalizer initialization. Fast fading channels with high Doppler shifts can be compensated with an adaptive tap selection technique as well as variable step-sizes. Under the ATSC test channels, the proposed algorithm, is analyzed and compared with the conventional equalizer.

AB - An equalization algorithm is proposed to guarantee a stable performance in fast fading channels for the advanced television system committee (ATSC) digital television (DTV) systems. In channels with high Doppler shifts, the conventional equalizer shows severe performance degradation. The conventional equalizer with long filter taps to overcome long delay profiles is not suitable for fast fading channels. The proposed sparse equalization algorithm is robust to the multipaths with long delay profiles as well as fast fading by utilizing channel estimation and an equalizer initialization. Fast fading channels with high Doppler shifts can be compensated with an adaptive tap selection technique as well as variable step-sizes. Under the ATSC test channels, the proposed algorithm, is analyzed and compared with the conventional equalizer.

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Adaptive sparse equalizer robust to fast fading and long delay spread for ATSC DTV

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Keywords

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