Robust ls channel estimation with phase rotation for OFDM

Chae Hyun Lim; Dong Seog Han; Hae Sock Oh; Jeong Goo Kim

Robust ls channel estimation with phase rotation for OFDM

Chae Hyun Lim, Dong Seog Han, Hae Sock Oh, Jeong Goo Kim

School of Electronics Engineering

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

Abstract

A channel estimation technique is proposed with the least square (LS) based on a comb-type pilot estimator. The comb-type estimator uses an interpolator to obtain the channel information for the positions of data subcarriers. However, the interpolation method causes additional errors due to not only the estimation error but also the frame synchronization error. The characteristics of the LS estimator in the time-domain are investigated from the points of interpolation properties and frame synchronization error. Accordingly, a new channel estimator that uses the interpolated LS with consideration for avoiding errors by interpolation is proposed. In particular, the proposed estimator is robust to the single frequency network (SFN).

Original language	English
Title of host publication	Proceedings of the IASTED International Conference on Communication Systems and Applications, as part of the Fifth IASTED Int. Multi-Conference on Wireless and Optical Communications, CSA 2005
Editors	A.O. Fapojuwo
Pages	36-40
Number of pages	5
State	Published - 2005
Event	IASTED International Conference on Communication Systems and Applications, as part of the Fifth IASTED International Multi-Conference on Wireless and Optical Communications, CSA 2005 - Banff, AB, Canada Duration: 19 Jul 2005 → 21 Jul 2005

Publication series

Name	Proceedings of the IASTED International Conference on Communication Systems and Applications, as part of the Fifth IASTED Int. Multi-Conference on Wireless and Optical Communications, CSA 2005

Conference

Conference	IASTED International Conference on Communication Systems and Applications, as part of the Fifth IASTED International Multi-Conference on Wireless and Optical Communications, CSA 2005
Country/Territory	Canada
City	Banff, AB
Period	19/07/05 → 21/07/05

Keywords

Channel estimation
Frame synchronization
Interpolation
LS estimation
OFDM

Cite this

Lim, C. H., Han, D. S., Oh, H. S., & Kim, J. G. (2005). Robust ls channel estimation with phase rotation for OFDM. In A. O. Fapojuwo (Ed.), Proceedings of the IASTED International Conference on Communication Systems and Applications, as part of the Fifth IASTED Int. Multi-Conference on Wireless and Optical Communications, CSA 2005 (pp. 36-40). (Proceedings of the IASTED International Conference on Communication Systems and Applications, as part of the Fifth IASTED Int. Multi-Conference on Wireless and Optical Communications, CSA 2005).

Lim, Chae Hyun ; Han, Dong Seog ; Oh, Hae Sock et al. / Robust ls channel estimation with phase rotation for OFDM. Proceedings of the IASTED International Conference on Communication Systems and Applications, as part of the Fifth IASTED Int. Multi-Conference on Wireless and Optical Communications, CSA 2005. editor / A.O. Fapojuwo. 2005. pp. 36-40 (Proceedings of the IASTED International Conference on Communication Systems and Applications, as part of the Fifth IASTED Int. Multi-Conference on Wireless and Optical Communications, CSA 2005).

@inproceedings{c7b1e6170ca7403789ebe47956bb2971,

title = "Robust ls channel estimation with phase rotation for OFDM",

abstract = "A channel estimation technique is proposed with the least square (LS) based on a comb-type pilot estimator. The comb-type estimator uses an interpolator to obtain the channel information for the positions of data subcarriers. However, the interpolation method causes additional errors due to not only the estimation error but also the frame synchronization error. The characteristics of the LS estimator in the time-domain are investigated from the points of interpolation properties and frame synchronization error. Accordingly, a new channel estimator that uses the interpolated LS with consideration for avoiding errors by interpolation is proposed. In particular, the proposed estimator is robust to the single frequency network (SFN).",

keywords = "Channel estimation, Frame synchronization, Interpolation, LS estimation, OFDM",

author = "Lim, {Chae Hyun} and Han, {Dong Seog} and Oh, {Hae Sock} and Kim, {Jeong Goo}",

year = "2005",

language = "English",

isbn = "0889864934",

series = "Proceedings of the IASTED International Conference on Communication Systems and Applications, as part of the Fifth IASTED Int. Multi-Conference on Wireless and Optical Communications, CSA 2005",

pages = "36--40",

editor = "A.O. Fapojuwo",

booktitle = "Proceedings of the IASTED International Conference on Communication Systems and Applications, as part of the Fifth IASTED Int. Multi-Conference on Wireless and Optical Communications, CSA 2005",

note = "IASTED International Conference on Communication Systems and Applications, as part of the Fifth IASTED International Multi-Conference on Wireless and Optical Communications, CSA 2005 ; Conference date: 19-07-2005 Through 21-07-2005",

}

Lim, CH, Han, DS, Oh, HS & Kim, JG 2005, Robust ls channel estimation with phase rotation for OFDM. in AO Fapojuwo (ed.), Proceedings of the IASTED International Conference on Communication Systems and Applications, as part of the Fifth IASTED Int. Multi-Conference on Wireless and Optical Communications, CSA 2005. Proceedings of the IASTED International Conference on Communication Systems and Applications, as part of the Fifth IASTED Int. Multi-Conference on Wireless and Optical Communications, CSA 2005, pp. 36-40, IASTED International Conference on Communication Systems and Applications, as part of the Fifth IASTED International Multi-Conference on Wireless and Optical Communications, CSA 2005, Banff, AB, Canada, 19/07/05.

Robust ls channel estimation with phase rotation for OFDM. / Lim, Chae Hyun; Han, Dong Seog; Oh, Hae Sock et al.
Proceedings of the IASTED International Conference on Communication Systems and Applications, as part of the Fifth IASTED Int. Multi-Conference on Wireless and Optical Communications, CSA 2005. ed. / A.O. Fapojuwo. 2005. p. 36-40 (Proceedings of the IASTED International Conference on Communication Systems and Applications, as part of the Fifth IASTED Int. Multi-Conference on Wireless and Optical Communications, CSA 2005).

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

TY - GEN

T1 - Robust ls channel estimation with phase rotation for OFDM

AU - Lim, Chae Hyun

AU - Han, Dong Seog

AU - Oh, Hae Sock

AU - Kim, Jeong Goo

PY - 2005

Y1 - 2005

N2 - A channel estimation technique is proposed with the least square (LS) based on a comb-type pilot estimator. The comb-type estimator uses an interpolator to obtain the channel information for the positions of data subcarriers. However, the interpolation method causes additional errors due to not only the estimation error but also the frame synchronization error. The characteristics of the LS estimator in the time-domain are investigated from the points of interpolation properties and frame synchronization error. Accordingly, a new channel estimator that uses the interpolated LS with consideration for avoiding errors by interpolation is proposed. In particular, the proposed estimator is robust to the single frequency network (SFN).

AB - A channel estimation technique is proposed with the least square (LS) based on a comb-type pilot estimator. The comb-type estimator uses an interpolator to obtain the channel information for the positions of data subcarriers. However, the interpolation method causes additional errors due to not only the estimation error but also the frame synchronization error. The characteristics of the LS estimator in the time-domain are investigated from the points of interpolation properties and frame synchronization error. Accordingly, a new channel estimator that uses the interpolated LS with consideration for avoiding errors by interpolation is proposed. In particular, the proposed estimator is robust to the single frequency network (SFN).

KW - Channel estimation

KW - Frame synchronization

KW - Interpolation

KW - LS estimation

KW - OFDM

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M3 - Conference contribution

AN - SCOPUS:33644504845

SN - 0889864934

SN - 9780889864931

T3 - Proceedings of the IASTED International Conference on Communication Systems and Applications, as part of the Fifth IASTED Int. Multi-Conference on Wireless and Optical Communications, CSA 2005

SP - 36

EP - 40

BT - Proceedings of the IASTED International Conference on Communication Systems and Applications, as part of the Fifth IASTED Int. Multi-Conference on Wireless and Optical Communications, CSA 2005

A2 - Fapojuwo, A.O.

T2 - IASTED International Conference on Communication Systems and Applications, as part of the Fifth IASTED International Multi-Conference on Wireless and Optical Communications, CSA 2005

Y2 - 19 July 2005 through 21 July 2005

ER -

Lim CH, Han DS, Oh HS, Kim JG. Robust ls channel estimation with phase rotation for OFDM. In Fapojuwo AO, editor, Proceedings of the IASTED International Conference on Communication Systems and Applications, as part of the Fifth IASTED Int. Multi-Conference on Wireless and Optical Communications, CSA 2005. 2005. p. 36-40. (Proceedings of the IASTED International Conference on Communication Systems and Applications, as part of the Fifth IASTED Int. Multi-Conference on Wireless and Optical Communications, CSA 2005).

Robust ls channel estimation with phase rotation for OFDM

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Publication series

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Keywords

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