Universal filtered multicarrier (UFMC) systems offer a flexibility of filtering sub-bands with arbitrary bandwidth to suppress out-of-band (OoB) emission, while keeping the orthogonality between subcarriers in one sub-band. Oscillator discrepancies between the transmitter and receiver induce carrier frequency offset (CFO) in practical systems. In this paper, we propose a novel CFO estimation method for UFMC systems that has very low computational complexity and can then be used in practical systems. In order to fully exploit the coherence bandwidth of the channel, the training symbols are designed to have several identical segments in the frequency domain. As a result, the integral part of CFO can be estimated by simply determining the correlation between received signal and the training symbol. Simulation results show that the proposed method can achieve almost the same performance as an existing method and even a better performance in channels that have small decay parameter values. The proposed method can also be used in other multicarrier systems, such as orthogonal frequency division multiplexing (OFDM).
Hui ZHANG
Southeast University
Bin SHENG
Southeast University
Pengcheng ZHU
Southeast University
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Hui ZHANG, Bin SHENG, Pengcheng ZHU, "A Low Complexity CFO Estimation Method for UFMC Systems" in IEICE TRANSACTIONS on Communications,
vol. E104-B, no. 2, pp. 169-177, February 2021, doi: 10.1587/transcom.2019EBP3214.
Abstract: Universal filtered multicarrier (UFMC) systems offer a flexibility of filtering sub-bands with arbitrary bandwidth to suppress out-of-band (OoB) emission, while keeping the orthogonality between subcarriers in one sub-band. Oscillator discrepancies between the transmitter and receiver induce carrier frequency offset (CFO) in practical systems. In this paper, we propose a novel CFO estimation method for UFMC systems that has very low computational complexity and can then be used in practical systems. In order to fully exploit the coherence bandwidth of the channel, the training symbols are designed to have several identical segments in the frequency domain. As a result, the integral part of CFO can be estimated by simply determining the correlation between received signal and the training symbol. Simulation results show that the proposed method can achieve almost the same performance as an existing method and even a better performance in channels that have small decay parameter values. The proposed method can also be used in other multicarrier systems, such as orthogonal frequency division multiplexing (OFDM).
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2019EBP3214/_p
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@ARTICLE{e104-b_2_169,
author={Hui ZHANG, Bin SHENG, Pengcheng ZHU, },
journal={IEICE TRANSACTIONS on Communications},
title={A Low Complexity CFO Estimation Method for UFMC Systems},
year={2021},
volume={E104-B},
number={2},
pages={169-177},
abstract={Universal filtered multicarrier (UFMC) systems offer a flexibility of filtering sub-bands with arbitrary bandwidth to suppress out-of-band (OoB) emission, while keeping the orthogonality between subcarriers in one sub-band. Oscillator discrepancies between the transmitter and receiver induce carrier frequency offset (CFO) in practical systems. In this paper, we propose a novel CFO estimation method for UFMC systems that has very low computational complexity and can then be used in practical systems. In order to fully exploit the coherence bandwidth of the channel, the training symbols are designed to have several identical segments in the frequency domain. As a result, the integral part of CFO can be estimated by simply determining the correlation between received signal and the training symbol. Simulation results show that the proposed method can achieve almost the same performance as an existing method and even a better performance in channels that have small decay parameter values. The proposed method can also be used in other multicarrier systems, such as orthogonal frequency division multiplexing (OFDM).},
keywords={},
doi={10.1587/transcom.2019EBP3214},
ISSN={1745-1345},
month={February},}
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TY - JOUR
TI - A Low Complexity CFO Estimation Method for UFMC Systems
T2 - IEICE TRANSACTIONS on Communications
SP - 169
EP - 177
AU - Hui ZHANG
AU - Bin SHENG
AU - Pengcheng ZHU
PY - 2021
DO - 10.1587/transcom.2019EBP3214
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E104-B
IS - 2
JA - IEICE TRANSACTIONS on Communications
Y1 - February 2021
AB - Universal filtered multicarrier (UFMC) systems offer a flexibility of filtering sub-bands with arbitrary bandwidth to suppress out-of-band (OoB) emission, while keeping the orthogonality between subcarriers in one sub-band. Oscillator discrepancies between the transmitter and receiver induce carrier frequency offset (CFO) in practical systems. In this paper, we propose a novel CFO estimation method for UFMC systems that has very low computational complexity and can then be used in practical systems. In order to fully exploit the coherence bandwidth of the channel, the training symbols are designed to have several identical segments in the frequency domain. As a result, the integral part of CFO can be estimated by simply determining the correlation between received signal and the training symbol. Simulation results show that the proposed method can achieve almost the same performance as an existing method and even a better performance in channels that have small decay parameter values. The proposed method can also be used in other multicarrier systems, such as orthogonal frequency division multiplexing (OFDM).
ER -