Optimal superimposed pilot selection for OFDM channel estimation

Angiras R. Varma; Chandra R.N. Athaudage; Lachlan L.H. Andrew; Jonathan H. Manton

doi:10.1109/SPAWC.2006.346490

Optimal superimposed pilot selection for OFDM channel estimation

Angiras R. Varma, Chandra R.N. Athaudage, Lachlan L.H. Andrew, Jonathan H. Manton

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

12 Citations (Scopus)

Abstract

This paper presents an optimal strategy for utilizing superimposed pilots for OFDM channel estimation using Wiener filtering. An algorithm is formulated to determine the optimal rectangular set of time-frequency samples for channel estimation for a given complexity. The proposed scheme shows an improved performance at high Doppler frequencies. Moreover, the separable implementation of the 2D Wiener filter leads to a significant reduction in complexity with negligible degradation in channel estimation performance. The sensitivity of the proposed technique to channel statistical mismatches is also analyzed. Numerical results demonstrate the superior performance of the proposed technique compared to conventional selection of square set of time-frequency samples for Wiener-filter based channel estimation.

Original language	English
Title of host publication	2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications, SPAWC
DOIs	https://doi.org/10.1109/SPAWC.2006.346490
Publication status	Published - 2006
Event	2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications, SPAWC - Cannes, France Duration: 2 Jul 2006 → 5 Jul 2006

Publication series

Name	IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC

Conference

Conference	2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications, SPAWC
Country/Territory	France
City	Cannes
Period	2/07/06 → 5/07/06

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10.1109/SPAWC.2006.346490

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Varma, A. R., Athaudage, C. R. N., Andrew, L. L. H., & Manton, J. H. (2006). Optimal superimposed pilot selection for OFDM channel estimation. In 2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications, SPAWC Article 4153906 (IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC). https://doi.org/10.1109/SPAWC.2006.346490

@inproceedings{f378ef3db3e841df904d4ce60fdf2bdc,

title = "Optimal superimposed pilot selection for OFDM channel estimation",

abstract = "This paper presents an optimal strategy for utilizing superimposed pilots for OFDM channel estimation using Wiener filtering. An algorithm is formulated to determine the optimal rectangular set of time-frequency samples for channel estimation for a given complexity. The proposed scheme shows an improved performance at high Doppler frequencies. Moreover, the separable implementation of the 2D Wiener filter leads to a significant reduction in complexity with negligible degradation in channel estimation performance. The sensitivity of the proposed technique to channel statistical mismatches is also analyzed. Numerical results demonstrate the superior performance of the proposed technique compared to conventional selection of square set of time-frequency samples for Wiener-filter based channel estimation.",

author = "Varma, {Angiras R.} and Athaudage, {Chandra R.N.} and Andrew, {Lachlan L.H.} and Manton, {Jonathan H.}",

year = "2006",

doi = "10.1109/SPAWC.2006.346490",

language = "English",

isbn = "078039710X",

series = "IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC",

booktitle = "2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications, SPAWC",

note = "2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications, SPAWC ; Conference date: 02-07-2006 Through 05-07-2006",

}

Varma, AR, Athaudage, CRN, Andrew, LLH & Manton, JH 2006, Optimal superimposed pilot selection for OFDM channel estimation. in 2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications, SPAWC., 4153906, IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC, 2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications, SPAWC, Cannes, France, 2/07/06. https://doi.org/10.1109/SPAWC.2006.346490

Optimal superimposed pilot selection for OFDM channel estimation. / Varma, Angiras R.; Athaudage, Chandra R.N.; Andrew, Lachlan L.H. et al.
2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications, SPAWC. 2006. 4153906 (IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC).

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

TY - GEN

T1 - Optimal superimposed pilot selection for OFDM channel estimation

AU - Varma, Angiras R.

AU - Athaudage, Chandra R.N.

AU - Andrew, Lachlan L.H.

AU - Manton, Jonathan H.

PY - 2006

Y1 - 2006

N2 - This paper presents an optimal strategy for utilizing superimposed pilots for OFDM channel estimation using Wiener filtering. An algorithm is formulated to determine the optimal rectangular set of time-frequency samples for channel estimation for a given complexity. The proposed scheme shows an improved performance at high Doppler frequencies. Moreover, the separable implementation of the 2D Wiener filter leads to a significant reduction in complexity with negligible degradation in channel estimation performance. The sensitivity of the proposed technique to channel statistical mismatches is also analyzed. Numerical results demonstrate the superior performance of the proposed technique compared to conventional selection of square set of time-frequency samples for Wiener-filter based channel estimation.

AB - This paper presents an optimal strategy for utilizing superimposed pilots for OFDM channel estimation using Wiener filtering. An algorithm is formulated to determine the optimal rectangular set of time-frequency samples for channel estimation for a given complexity. The proposed scheme shows an improved performance at high Doppler frequencies. Moreover, the separable implementation of the 2D Wiener filter leads to a significant reduction in complexity with negligible degradation in channel estimation performance. The sensitivity of the proposed technique to channel statistical mismatches is also analyzed. Numerical results demonstrate the superior performance of the proposed technique compared to conventional selection of square set of time-frequency samples for Wiener-filter based channel estimation.

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U2 - 10.1109/SPAWC.2006.346490

DO - 10.1109/SPAWC.2006.346490

M3 - Conference contribution

SN - 078039710X

SN - 9780780397101

T3 - IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC

BT - 2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications, SPAWC

T2 - 2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications, SPAWC

Y2 - 2 July 2006 through 5 July 2006

ER -

Optimal superimposed pilot selection for OFDM channel estimation

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