An OFDM Channel Estimation Method Based on a State-Space Model that Appropriately Considers Frequency Correlation

Junichiro HAGIWARA

doi:10.1587/transfun.E98.A.537

An OFDM Channel Estimation Method Based on a State-Space Model that Appropriately Considers Frequency Correlation

Junichiro HAGIWARA

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This paper proposes a novel scheme for sequential orthogonal frequency division multiplexing channel estimation on the receiver side.The scheme comprises two methods: one improves estimation accuracy and the other reduces computational complexity. Based on a state-space model, the first method appropriately considers frequency correlation in an approach that derives a narrow-band channel gain for multiple pilot subcarriers; such consideration of frequency correlation leads to an averaging effect in the frequency domain. The second method is based on the first one and forces the observation matrix into a sparse bidiagonal matrix in order to decrease the number of mathematical processes. The proposed scheme is verified by numerical analysis.

Publication: IEICE TRANSACTIONS on Fundamentals Vol.E98-A No.2 pp.537-548

Publication Date: 2015/02/01

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Online ISSN: 1745-1337

DOI: 10.1587/transfun.E98.A.537

Type of Manuscript: Special Section PAPER (Special Section on Wideband Systems)

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Junichiro HAGIWARA, "An OFDM Channel Estimation Method Based on a State-Space Model that Appropriately Considers Frequency Correlation" in IEICE TRANSACTIONS on Fundamentals, vol. E98-A, no. 2, pp. 537-548, February 2015, doi: 10.1587/transfun.E98.A.537.
Abstract: This paper proposes a novel scheme for sequential orthogonal frequency division multiplexing channel estimation on the receiver side.The scheme comprises two methods: one improves estimation accuracy and the other reduces computational complexity. Based on a state-space model, the first method appropriately considers frequency correlation in an approach that derives a narrow-band channel gain for multiple pilot subcarriers; such consideration of frequency correlation leads to an averaging effect in the frequency domain. The second method is based on the first one and forces the observation matrix into a sparse bidiagonal matrix in order to decrease the number of mathematical processes. The proposed scheme is verified by numerical analysis.
URL: https://globals.ieice.org/en_transactions/fundamentals/10.1587/transfun.E98.A.537/_p

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@ARTICLE{e98-a_2_537,
author={Junichiro HAGIWARA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={An OFDM Channel Estimation Method Based on a State-Space Model that Appropriately Considers Frequency Correlation},
year={2015},
volume={E98-A},
number={2},
pages={537-548},
abstract={This paper proposes a novel scheme for sequential orthogonal frequency division multiplexing channel estimation on the receiver side.The scheme comprises two methods: one improves estimation accuracy and the other reduces computational complexity. Based on a state-space model, the first method appropriately considers frequency correlation in an approach that derives a narrow-band channel gain for multiple pilot subcarriers; such consideration of frequency correlation leads to an averaging effect in the frequency domain. The second method is based on the first one and forces the observation matrix into a sparse bidiagonal matrix in order to decrease the number of mathematical processes. The proposed scheme is verified by numerical analysis.},
keywords={},
doi={10.1587/transfun.E98.A.537},
ISSN={1745-1337},
month={February},}

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TY - JOUR
TI - An OFDM Channel Estimation Method Based on a State-Space Model that Appropriately Considers Frequency Correlation
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 537
EP - 548
AU - Junichiro HAGIWARA
PY - 2015
DO - 10.1587/transfun.E98.A.537
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E98-A
IS - 2
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - February 2015
AB - This paper proposes a novel scheme for sequential orthogonal frequency division multiplexing channel estimation on the receiver side.The scheme comprises two methods: one improves estimation accuracy and the other reduces computational complexity. Based on a state-space model, the first method appropriately considers frequency correlation in an approach that derives a narrow-band channel gain for multiple pilot subcarriers; such consideration of frequency correlation leads to an averaging effect in the frequency domain. The second method is based on the first one and forces the observation matrix into a sparse bidiagonal matrix in order to decrease the number of mathematical processes. The proposed scheme is verified by numerical analysis.
ER -