A Low Complexity Frequency Offset Estimation Scheme for OFDM Systems 


Vol. 34,  No. 5, pp. 548-554, May  2009


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  Abstract

OFDM systems are very sensitive to the frequency offset. Therefore, frequency offset estimation is one of the most important procedures in OFDM systems. Ren's periodogram-based frequency offset estimation scheme consists of three steps which estimates the frequency offset accurately. However, there are the drawbacks of the limited frequency offset estimation ranges in the second and third estimation steps of the Ren's scheme. This ranges are insufficient compared with the overall signal bandwidth, making the high complexity of the first estimation step. In this paper, we propose a novel lower complexity frequency offset estimation scheme for OFDM systems which extends the frequency offset estimation range. The simulation results show that the proposed scheme has a wider frequency offset estimation range and lower complexity than those of the Ren's scheme.

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  Cite this article

[IEEE Style]

Y. Lee, D. Chong, T. Yoon, C. Song, S. Kim, S. R. Park, S. Yoon, "A Low Complexity Frequency Offset Estimation Scheme for OFDM Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 34, no. 5, pp. 548-554, 2009. DOI: .

[ACM Style]

Youngyoon Lee, Dahae Chong, Taeung Yoon, Chonghan Song, Sanghun Kim, So Ryoung Park, and Seokho Yoon. 2009. A Low Complexity Frequency Offset Estimation Scheme for OFDM Systems. The Journal of Korean Institute of Communications and Information Sciences, 34, 5, (2009), 548-554. DOI: .

[KICS Style]

Youngyoon Lee, Dahae Chong, Taeung Yoon, Chonghan Song, Sanghun Kim, So Ryoung Park, Seokho Yoon, "A Low Complexity Frequency Offset Estimation Scheme for OFDM Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 34, no. 5, pp. 548-554, 5. 2009.