Low-complexity Carrier Frequency Offset Estimation using A Novel Region Boundary for OFDM-based WLAN Systems 


Vol. 35,  No. 3, pp. 254-259, Mar.  2010


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  Abstract

In this paper, we propose a low-complexity carrier frequency offset (CFO) estimation algorithm for OFDM based wireless LAN, IEEE 802.11a. The complexity of the arctangent operation to calculate the argument of auto-correlation for CFO estimation is reduced by a novel range pointer method. The proposed algorithm estimates fine CFO value first and then based on the fine CFO value, simple criteria is used for the boundary decision of integer CFO estimation. The simulation results show that the performance of the proposed algorithm is slightly better than the conventional method while the computational complexity is reduced by 50%. Furthermore, the proposed method can be easily implemented for the low complex next generation MIMO-OFDM based WLAN systems.

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  Cite this article

[IEEE Style]

J. Cho, J. Kim, W. Cho, "Low-complexity Carrier Frequency Offset Estimation using A Novel Region Boundary for OFDM-based WLAN Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 35, no. 3, pp. 254-259, 2010. DOI: .

[ACM Style]

Jongmin Cho, Jinsang Kim, and Won-Kyung Cho. 2010. Low-complexity Carrier Frequency Offset Estimation using A Novel Region Boundary for OFDM-based WLAN Systems. The Journal of Korean Institute of Communications and Information Sciences, 35, 3, (2010), 254-259. DOI: .

[KICS Style]

Jongmin Cho, Jinsang Kim, Won-Kyung Cho, "Low-complexity Carrier Frequency Offset Estimation using A Novel Region Boundary for OFDM-based WLAN Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 35, no. 3, pp. 254-259, 3. 2010.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880