On maximum likelihood estimation of channel impulse response and carrier frequency offset in OFDM systems

Rodrigo Carvajal; Karen Rivas; Juan C. Aguero

doi:10.1109/LATINCOM.2017.8240188

On maximum likelihood estimation of channel impulse response and carrier frequency offset in OFDM systems

Rodrigo Carvajal, Karen Rivas, Juan C. Aguero

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

2 Scopus citations

Abstract

In this paper, we address the problem of estimating channel impulse response (CIR) and carrier frequency offset (CFO) in OFDM systems utilizing the method of maximum likelihood. When the CFO is small, Moose's technique for CFO estimation is accurate and numerically efficient. However, if the CFO is high, there are no straightforward solutions for its estimation. We show that the log-likelihood function of the CIR and the CFO can be concentrated in one variable (the CFO), and that its estimation can be accurately carried out by first performing a coarse line search and then applying Newton's method at a low computational cost. We illustrate the benefits of our proposal via numerical simulations.

Original language	English
Title of host publication	2017 IEEE 9th Latin-American Conference on Communications, LATINCOM 2017
Editors	Carlos E. Velasquez-Villada
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1-4
Number of pages	4
ISBN (Electronic)	9781538620984
DOIs	https://doi.org/10.1109/LATINCOM.2017.8240188
State	Published - 26 Dec 2017
Externally published	Yes
Event	9th IEEE Latin-American Conference on Communications, LATINCOM 2017 - Guatemala City, Guatemala Duration: 8 Nov 2017 → 10 Nov 2017

Publication series

Name	2017 IEEE 9th Latin-American Conference on Communications, LATINCOM 2017
Volume	2017-January

Conference

Conference	9th IEEE Latin-American Conference on Communications, LATINCOM 2017
Country/Territory	Guatemala
City	Guatemala City
Period	8/11/17 → 10/11/17

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10.1109/LATINCOM.2017.8240188

Cite this

Carvajal, R., Rivas, K., & Aguero, J. C. (2017). On maximum likelihood estimation of channel impulse response and carrier frequency offset in OFDM systems. In C. E. Velasquez-Villada (Ed.), 2017 IEEE 9th Latin-American Conference on Communications, LATINCOM 2017 (pp. 1-4). (2017 IEEE 9th Latin-American Conference on Communications, LATINCOM 2017; Vol. 2017-January). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/LATINCOM.2017.8240188

Carvajal, Rodrigo ; Rivas, Karen ; Aguero, Juan C. / On maximum likelihood estimation of channel impulse response and carrier frequency offset in OFDM systems. 2017 IEEE 9th Latin-American Conference on Communications, LATINCOM 2017. editor / Carlos E. Velasquez-Villada. Institute of Electrical and Electronics Engineers Inc., 2017. pp. 1-4 (2017 IEEE 9th Latin-American Conference on Communications, LATINCOM 2017).

@inproceedings{92f94bd928cf43c7b2f4e13d3f4e0ff5,

title = "On maximum likelihood estimation of channel impulse response and carrier frequency offset in OFDM systems",

abstract = "In this paper, we address the problem of estimating channel impulse response (CIR) and carrier frequency offset (CFO) in OFDM systems utilizing the method of maximum likelihood. When the CFO is small, Moose's technique for CFO estimation is accurate and numerically efficient. However, if the CFO is high, there are no straightforward solutions for its estimation. We show that the log-likelihood function of the CIR and the CFO can be concentrated in one variable (the CFO), and that its estimation can be accurately carried out by first performing a coarse line search and then applying Newton's method at a low computational cost. We illustrate the benefits of our proposal via numerical simulations.",

author = "Rodrigo Carvajal and Karen Rivas and Aguero, {Juan C.}",

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year = "2017",

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doi = "10.1109/LATINCOM.2017.8240188",

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Carvajal, R, Rivas, K & Aguero, JC 2017, On maximum likelihood estimation of channel impulse response and carrier frequency offset in OFDM systems. in CE Velasquez-Villada (ed.), 2017 IEEE 9th Latin-American Conference on Communications, LATINCOM 2017. 2017 IEEE 9th Latin-American Conference on Communications, LATINCOM 2017, vol. 2017-January, Institute of Electrical and Electronics Engineers Inc., pp. 1-4, 9th IEEE Latin-American Conference on Communications, LATINCOM 2017, Guatemala City, Guatemala, 8/11/17. https://doi.org/10.1109/LATINCOM.2017.8240188

On maximum likelihood estimation of channel impulse response and carrier frequency offset in OFDM systems. / Carvajal, Rodrigo; Rivas, Karen; Aguero, Juan C.
2017 IEEE 9th Latin-American Conference on Communications, LATINCOM 2017. ed. / Carlos E. Velasquez-Villada. Institute of Electrical and Electronics Engineers Inc., 2017. p. 1-4 (2017 IEEE 9th Latin-American Conference on Communications, LATINCOM 2017; Vol. 2017-January).

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

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PY - 2017/12/26

Y1 - 2017/12/26

N2 - In this paper, we address the problem of estimating channel impulse response (CIR) and carrier frequency offset (CFO) in OFDM systems utilizing the method of maximum likelihood. When the CFO is small, Moose's technique for CFO estimation is accurate and numerically efficient. However, if the CFO is high, there are no straightforward solutions for its estimation. We show that the log-likelihood function of the CIR and the CFO can be concentrated in one variable (the CFO), and that its estimation can be accurately carried out by first performing a coarse line search and then applying Newton's method at a low computational cost. We illustrate the benefits of our proposal via numerical simulations.

AB - In this paper, we address the problem of estimating channel impulse response (CIR) and carrier frequency offset (CFO) in OFDM systems utilizing the method of maximum likelihood. When the CFO is small, Moose's technique for CFO estimation is accurate and numerically efficient. However, if the CFO is high, there are no straightforward solutions for its estimation. We show that the log-likelihood function of the CIR and the CFO can be concentrated in one variable (the CFO), and that its estimation can be accurately carried out by first performing a coarse line search and then applying Newton's method at a low computational cost. We illustrate the benefits of our proposal via numerical simulations.

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M3 - Conference contribution

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BT - 2017 IEEE 9th Latin-American Conference on Communications, LATINCOM 2017

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Carvajal R, Rivas K, Aguero JC. On maximum likelihood estimation of channel impulse response and carrier frequency offset in OFDM systems. In Velasquez-Villada CE, editor, 2017 IEEE 9th Latin-American Conference on Communications, LATINCOM 2017. Institute of Electrical and Electronics Engineers Inc. 2017. p. 1-4. (2017 IEEE 9th Latin-American Conference on Communications, LATINCOM 2017). doi: 10.1109/LATINCOM.2017.8240188

On maximum likelihood estimation of channel impulse response and carrier frequency offset in OFDM systems

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