Low-cost blind carrier frequency offset estimator for down-link MIMO multicarrier systems

L. Mi; S. Attallah; A. Nallanathan

doi:10.1049/ip-com:20060110

Low-cost blind carrier frequency offset estimator for down-link MIMO multicarrier systems

L. Mi^*, S. Attallah, A. Nallanathan

^*Corresponding author for this work

National University of Singapore

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

Abstract

Under perfect synchronisation conditions, communication systems using multiple transmit and receive antennas, known as the multiple input multiple output (MIMO) technique, along with the multicarrier transmission technique can achieve very high transmission data rates, bandwidth efficiency and robustness to the channel frequency selective fading. In a practical system, however, the presence of a carrier frequency offset (CFO), due to lack of perfect synchronisation, causes a severe degradation in the overall system performance. A low-cost blind CFO estimator is proposed for the downlink of the MIMO multicarrier system, which is based on the null subcarriers concept and Taylor's series expansion. The theoretical mean squared error (MSE) of the proposed CFO estimator is also derived. It is shown in particular, that the computational complexity of the proposed estimator is significantly low, yet its performance is good.

Original language	English
Pages (from-to)	901-908
Number of pages	8
Journal	IEE Proceedings in Communications
Volume	153
Issue number	6
DOIs	https://doi.org/10.1049/ip-com:20060110
Publication status	Published - Dec 2006

Keywords

OFDM SYSTEMS
WIRELESS

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10.1049/ip-com:20060110

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abstract = "Under perfect synchronisation conditions, communication systems using multiple transmit and receive antennas, known as the multiple input multiple output (MIMO) technique, along with the multicarrier transmission technique can achieve very high transmission data rates, bandwidth efficiency and robustness to the channel frequency selective fading. In a practical system, however, the presence of a carrier frequency offset (CFO), due to lack of perfect synchronisation, causes a severe degradation in the overall system performance. A low-cost blind CFO estimator is proposed for the downlink of the MIMO multicarrier system, which is based on the null subcarriers concept and Taylor's series expansion. The theoretical mean squared error (MSE) of the proposed CFO estimator is also derived. It is shown in particular, that the computational complexity of the proposed estimator is significantly low, yet its performance is good.",

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author = "L. Mi and S. Attallah and A. Nallanathan",

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AU - Mi, L.

AU - Attallah, S.

AU - Nallanathan, A.

PY - 2006/12

Y1 - 2006/12

N2 - Under perfect synchronisation conditions, communication systems using multiple transmit and receive antennas, known as the multiple input multiple output (MIMO) technique, along with the multicarrier transmission technique can achieve very high transmission data rates, bandwidth efficiency and robustness to the channel frequency selective fading. In a practical system, however, the presence of a carrier frequency offset (CFO), due to lack of perfect synchronisation, causes a severe degradation in the overall system performance. A low-cost blind CFO estimator is proposed for the downlink of the MIMO multicarrier system, which is based on the null subcarriers concept and Taylor's series expansion. The theoretical mean squared error (MSE) of the proposed CFO estimator is also derived. It is shown in particular, that the computational complexity of the proposed estimator is significantly low, yet its performance is good.

AB - Under perfect synchronisation conditions, communication systems using multiple transmit and receive antennas, known as the multiple input multiple output (MIMO) technique, along with the multicarrier transmission technique can achieve very high transmission data rates, bandwidth efficiency and robustness to the channel frequency selective fading. In a practical system, however, the presence of a carrier frequency offset (CFO), due to lack of perfect synchronisation, causes a severe degradation in the overall system performance. A low-cost blind CFO estimator is proposed for the downlink of the MIMO multicarrier system, which is based on the null subcarriers concept and Taylor's series expansion. The theoretical mean squared error (MSE) of the proposed CFO estimator is also derived. It is shown in particular, that the computational complexity of the proposed estimator is significantly low, yet its performance is good.

KW - OFDM SYSTEMS

KW - WIRELESS

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DO - 10.1049/ip-com:20060110

M3 - Article

SN - 1350-2425

VL - 153

SP - 901

EP - 908

JO - IEE Proceedings in Communications

JF - IEE Proceedings in Communications

IS - 6

ER -

Low-cost blind carrier frequency offset estimator for down-link MIMO multicarrier systems

Abstract

Keywords

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