A Novel OFDM Frequency Offset Estimation Algorithm Using a Periodogram 


Vol. 34,  No. 2, pp. 226-233, Feb.  2009


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  Abstract

A novel frequency offset estimation scheme using a periodogram is proposed for orthogonal frequency division multiplexing (OFDM) systems. A conventional scheme proposed by Ren has a problem that the fractional and residual frequency offset estimation steps do not compensate for the difference between the real frequency offset and estimated integer frequency offset in the noise channel. So, the frequency offset estimation performance of Ren's scheme is degraded. In this paper, a frequency offset estimation scheme is proposed, which has a larger estimation range than that of the fractional and residual frequency offset estimation steps in Ren's scheme. The proposed scheme can compensate for the difference between the real frequency offset and estimated integer frequency offset, unlike Ren's scheme. From the simulation results, we can observe that the performance of the proposed scheme is better than that of Ren's scheme.

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  Cite this article

[IEEE Style]

S. Ahn, C. Song, M. Lee, S. Lee, M. Jung, M. Choi, J. Lee, S. Yoon, "A Novel OFDM Frequency Offset Estimation Algorithm Using a Periodogram," The Journal of Korean Institute of Communications and Information Sciences, vol. 34, no. 2, pp. 226-233, 2009. DOI: .

[ACM Style]

Sangho Ahn, Chonghan Song, Myungsoo Lee, Seong-Ro Lee, Min-A Jung, Myeong-soo Choi, Jin-Seok Lee, and Seokho Yoon. 2009. A Novel OFDM Frequency Offset Estimation Algorithm Using a Periodogram. The Journal of Korean Institute of Communications and Information Sciences, 34, 2, (2009), 226-233. DOI: .

[KICS Style]

Sangho Ahn, Chonghan Song, Myungsoo Lee, Seong-Ro Lee, Min-A Jung, Myeong-soo Choi, Jin-Seok Lee, Seokho Yoon, "A Novel OFDM Frequency Offset Estimation Algorithm Using a Periodogram," The Journal of Korean Institute of Communications and Information Sciences, vol. 34, no. 2, pp. 226-233, 2. 2009.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880