Adaptive Carrier Frequency Offset Estimation in Interference Environments for OFDMA Uplink Systems

Nan Hung Cheng; Chien Chung Chen; Yi Fan Wang; Yung Fang Chen

doi:10.1002/tee.23894

Adaptive Carrier Frequency Offset Estimation in Interference Environments for OFDMA Uplink Systems

Nan Hung Cheng, Chien Chung Chen, Yi Fan Wang, Yung Fang Chen

Department of Communication Engineering

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

In orthogonal frequency division multiple access (OFDMA) systems, carrier frequency offsets (CFOs) influence the different users. In this paper, we proposed a CFO estimation algorithm with strong interference resistant capability for OFDMA systems. The first part of the proposed algorithm processes the received signals so as to deal with the CFO estimation problem. And the second part of the proposed algorithm is to use the proposed adaptive process to obtain the updated CFO estimation and track the parameters' time-variations. Simulations demonstrate the effectiveness of this method and show that its performance is to the Cramer-Rao Bounds (CRB).

Original language	English
Pages (from-to)	1664-1672
Number of pages	9
Journal	IEEJ Transactions on Electrical and Electronic Engineering
Volume	18
Issue number	10
DOIs	https://doi.org/10.1002/tee.23894
State	Published - Oct 2023

Keywords

carrier frequency offset estimation
heterogeneous networks
interference
orthogonal frequency division multiple access

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10.1002/tee.23894

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title = "Adaptive Carrier Frequency Offset Estimation in Interference Environments for OFDMA Uplink Systems",

abstract = "In orthogonal frequency division multiple access (OFDMA) systems, carrier frequency offsets (CFOs) influence the different users. In this paper, we proposed a CFO estimation algorithm with strong interference resistant capability for OFDMA systems. The first part of the proposed algorithm processes the received signals so as to deal with the CFO estimation problem. And the second part of the proposed algorithm is to use the proposed adaptive process to obtain the updated CFO estimation and track the parameters' time-variations. Simulations demonstrate the effectiveness of this method and show that its performance is to the Cramer-Rao Bounds (CRB).",

keywords = "carrier frequency offset estimation, heterogeneous networks, interference, orthogonal frequency division multiple access",

author = "Cheng, {Nan Hung} and Chen, {Chien Chung} and Wang, {Yi Fan} and Chen, {Yung Fang}",

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T1 - Adaptive Carrier Frequency Offset Estimation in Interference Environments for OFDMA Uplink Systems

AU - Cheng, Nan Hung

AU - Chen, Chien Chung

AU - Wang, Yi Fan

AU - Chen, Yung Fang

PY - 2023/10

Y1 - 2023/10

N2 - In orthogonal frequency division multiple access (OFDMA) systems, carrier frequency offsets (CFOs) influence the different users. In this paper, we proposed a CFO estimation algorithm with strong interference resistant capability for OFDMA systems. The first part of the proposed algorithm processes the received signals so as to deal with the CFO estimation problem. And the second part of the proposed algorithm is to use the proposed adaptive process to obtain the updated CFO estimation and track the parameters' time-variations. Simulations demonstrate the effectiveness of this method and show that its performance is to the Cramer-Rao Bounds (CRB).

AB - In orthogonal frequency division multiple access (OFDMA) systems, carrier frequency offsets (CFOs) influence the different users. In this paper, we proposed a CFO estimation algorithm with strong interference resistant capability for OFDMA systems. The first part of the proposed algorithm processes the received signals so as to deal with the CFO estimation problem. And the second part of the proposed algorithm is to use the proposed adaptive process to obtain the updated CFO estimation and track the parameters' time-variations. Simulations demonstrate the effectiveness of this method and show that its performance is to the Cramer-Rao Bounds (CRB).

KW - carrier frequency offset estimation

KW - heterogeneous networks

KW - interference

KW - orthogonal frequency division multiple access

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EP - 1672

JO - IEEJ Transactions on Electrical and Electronic Engineering

JF - IEEJ Transactions on Electrical and Electronic Engineering

IS - 10

ER -

Adaptive Carrier Frequency Offset Estimation in Interference Environments for OFDMA Uplink Systems

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