A Novel Frequency Offset Estimation for OFDM Systems

Jong Yoon HWANG; Kwang Soon KIM; Keum-Chan WHANG

doi:10.1093/ietcom/e89-b.11.3132

A Novel Frequency Offset Estimation for OFDM Systems

Jong Yoon HWANG, Kwang Soon KIM, Keum-Chan WHANG

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In this letter, a blind frequency offset estimation algorithm is proposed for OFDM systems. The proposed method exploits the intrinsic phase shift between neighboring samples in a single OFDM symbol, incurred by a frequency offset. The proposed algorithm minimizes a novel cost function, which is the squared error of the candidate frequency offset compensated signals from two different observation windows. Also, the solution of the proposed algorithm is given by an explicit equation, which does not require any iterative calculation. It is shown that the performance of the proposed method is better than those of the conventional methods, especially in the presence of multipath channels. This is due to the fact that the proposed method is insensitive to inter-symbol interference (ISI).

Publication: IEICE TRANSACTIONS on Communications Vol.E89-B No.11 pp.3132-3135

Publication Date: 2006/11/01

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Online ISSN: 1745-1345

DOI: 10.1093/ietcom/e89-b.11.3132

Type of Manuscript: LETTER

Category: Wireless Communication Technologies

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Jong Yoon HWANG, Kwang Soon KIM, Keum-Chan WHANG, "A Novel Frequency Offset Estimation for OFDM Systems" in IEICE TRANSACTIONS on Communications, vol. E89-B, no. 11, pp. 3132-3135, November 2006, doi: 10.1093/ietcom/e89-b.11.3132.
Abstract: In this letter, a blind frequency offset estimation algorithm is proposed for OFDM systems. The proposed method exploits the intrinsic phase shift between neighboring samples in a single OFDM symbol, incurred by a frequency offset. The proposed algorithm minimizes a novel cost function, which is the squared error of the candidate frequency offset compensated signals from two different observation windows. Also, the solution of the proposed algorithm is given by an explicit equation, which does not require any iterative calculation. It is shown that the performance of the proposed method is better than those of the conventional methods, especially in the presence of multipath channels. This is due to the fact that the proposed method is insensitive to inter-symbol interference (ISI).
URL: https://global.ieice.org/en_transactions/communications/10.1093/ietcom/e89-b.11.3132/_p

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@ARTICLE{e89-b_11_3132,
author={Jong Yoon HWANG, Kwang Soon KIM, Keum-Chan WHANG, },
journal={IEICE TRANSACTIONS on Communications},
title={A Novel Frequency Offset Estimation for OFDM Systems},
year={2006},
volume={E89-B},
number={11},
pages={3132-3135},
abstract={In this letter, a blind frequency offset estimation algorithm is proposed for OFDM systems. The proposed method exploits the intrinsic phase shift between neighboring samples in a single OFDM symbol, incurred by a frequency offset. The proposed algorithm minimizes a novel cost function, which is the squared error of the candidate frequency offset compensated signals from two different observation windows. Also, the solution of the proposed algorithm is given by an explicit equation, which does not require any iterative calculation. It is shown that the performance of the proposed method is better than those of the conventional methods, especially in the presence of multipath channels. This is due to the fact that the proposed method is insensitive to inter-symbol interference (ISI).},
keywords={},
doi={10.1093/ietcom/e89-b.11.3132},
ISSN={1745-1345},
month={November},}

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TY - JOUR
TI - A Novel Frequency Offset Estimation for OFDM Systems
T2 - IEICE TRANSACTIONS on Communications
SP - 3132
EP - 3135
AU - Jong Yoon HWANG
AU - Kwang Soon KIM
AU - Keum-Chan WHANG
PY - 2006
DO - 10.1093/ietcom/e89-b.11.3132
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E89-B
IS - 11
JA - IEICE TRANSACTIONS on Communications
Y1 - November 2006
AB - In this letter, a blind frequency offset estimation algorithm is proposed for OFDM systems. The proposed method exploits the intrinsic phase shift between neighboring samples in a single OFDM symbol, incurred by a frequency offset. The proposed algorithm minimizes a novel cost function, which is the squared error of the candidate frequency offset compensated signals from two different observation windows. Also, the solution of the proposed algorithm is given by an explicit equation, which does not require any iterative calculation. It is shown that the performance of the proposed method is better than those of the conventional methods, especially in the presence of multipath channels. This is due to the fact that the proposed method is insensitive to inter-symbol interference (ISI).
ER -