A low-complexity LMMSE channel estimator for OFDM systems

Wen-Rong Wu; Chao Yuan Hsu

doi:10.1109/APCCAS.2004.1412971

A low-complexity LMMSE channel estimator for OFDM systems

Wen-Rong Wu^*, Chao Yuan Hsu

^*Corresponding author for this work

Department of Electrical and Computer Engineering

Research output: Contribution to conference › Paper › peer-review

2 Scopus citations

Abstract

In this paper, we propose a low-complexity LMMSE channel estimator to for OFDM systems. First, we perform the time domain least-squares channel estimate. Then, we detect the non-zero channel taps and filter the detected non-zero channel taps. This method does not require channel statistics and matrix inverse operations. Simulation results show that the performance of the proposed method is close to that of the conventional LMMSE estimator with known channel statistics.

Original language	English
Pages	689-692
Number of pages	4
DOIs	https://doi.org/10.1109/APCCAS.2004.1412971
State	Published - 6 Dec 2004
Event	2004 IEEE Asia-Pacific Conference on Circuits and Systems, APCCAS 2004: SoC Design for Ubiquitous Information Technology - Tainan, Taiwan Duration: 6 Dec 2004 → 9 Dec 2004

Conference

Conference	2004 IEEE Asia-Pacific Conference on Circuits and Systems, APCCAS 2004: SoC Design for Ubiquitous Information Technology
Country/Territory	Taiwan
City	Tainan
Period	6/12/04 → 9/12/04

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10.1109/APCCAS.2004.1412971

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title = "A low-complexity LMMSE channel estimator for OFDM systems",

abstract = "In this paper, we propose a low-complexity LMMSE channel estimator to for OFDM systems. First, we perform the time domain least-squares channel estimate. Then, we detect the non-zero channel taps and filter the detected non-zero channel taps. This method does not require channel statistics and matrix inverse operations. Simulation results show that the performance of the proposed method is close to that of the conventional LMMSE estimator with known channel statistics.",

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AU - Hsu, Chao Yuan

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AB - In this paper, we propose a low-complexity LMMSE channel estimator to for OFDM systems. First, we perform the time domain least-squares channel estimate. Then, we detect the non-zero channel taps and filter the detected non-zero channel taps. This method does not require channel statistics and matrix inverse operations. Simulation results show that the performance of the proposed method is close to that of the conventional LMMSE estimator with known channel statistics.

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Y2 - 6 December 2004 through 9 December 2004

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A low-complexity LMMSE channel estimator for OFDM systems

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