Low-complexity adaptive channel estimation for OFDM system in fast-fading channel

I. Wei Lai; Tsung Han Yu; Tzi Dar Chiueh

doi:10.1109/ISCAS.2009.5117841

Low-complexity adaptive channel estimation for OFDM system in fast-fading channel

I. Wei Lai, Tsung Han Yu, Tzi Dar Chiueh

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

6 Citations (Scopus)

Abstract

This paper presents a low-complexity interpolation-based channel estimator suited for scattered-pilot OFDM systems in fast-fading channel. The proposed estimator consists of two interpolators: one RLS interpolator for estimating scattered subcarriers along the time direction and another raised-cosine (RC) interpolator for estimating data subcarriers along the frequency direction. A low-complexity architecture tailored for DVB-T/H is demonstrated as an exemplar. Simulation results show that the proposed channel estimator has comparable accuracy with almost order-of-magnitude lower complexity than conventional adaptive channel estimators.

Original language	English
Title of host publication	2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009
Pages	685-688
Number of pages	4
DOIs	https://doi.org/10.1109/ISCAS.2009.5117841
Publication status	Published - 2009
Externally published	Yes
Event	2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009 - Taipei, Taiwan Duration: 2009 May 24 → 2009 May 27

Publication series

Name	Proceedings - IEEE International Symposium on Circuits and Systems
ISSN (Print)	0271-4310

Other

Other	2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009
Country/Territory	Taiwan
City	Taipei
Period	2009/05/24 → 2009/05/27

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1109/ISCAS.2009.5117841

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Low-complexity adaptive channel estimation for OFDM system in fast-fading channel. / Lai, I. Wei; Yu, Tsung Han; Chiueh, Tzi Dar.
2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009. 2009. p. 685-688 5117841 (Proceedings - IEEE International Symposium on Circuits and Systems).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Lai, IW, Yu, TH & Chiueh, TD 2009, Low-complexity adaptive channel estimation for OFDM system in fast-fading channel. in 2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009., 5117841, Proceedings - IEEE International Symposium on Circuits and Systems, pp. 685-688, 2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009, Taipei, Taiwan, 2009/05/24. https://doi.org/10.1109/ISCAS.2009.5117841

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abstract = "This paper presents a low-complexity interpolation-based channel estimator suited for scattered-pilot OFDM systems in fast-fading channel. The proposed estimator consists of two interpolators: one RLS interpolator for estimating scattered subcarriers along the time direction and another raised-cosine (RC) interpolator for estimating data subcarriers along the frequency direction. A low-complexity architecture tailored for DVB-T/H is demonstrated as an exemplar. Simulation results show that the proposed channel estimator has comparable accuracy with almost order-of-magnitude lower complexity than conventional adaptive channel estimators.",

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AB - This paper presents a low-complexity interpolation-based channel estimator suited for scattered-pilot OFDM systems in fast-fading channel. The proposed estimator consists of two interpolators: one RLS interpolator for estimating scattered subcarriers along the time direction and another raised-cosine (RC) interpolator for estimating data subcarriers along the frequency direction. A low-complexity architecture tailored for DVB-T/H is demonstrated as an exemplar. Simulation results show that the proposed channel estimator has comparable accuracy with almost order-of-magnitude lower complexity than conventional adaptive channel estimators.

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Low-complexity adaptive channel estimation for OFDM system in fast-fading channel

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