Integer Frequency Offset Estimation by Pilot Subset Selection for DRM+ Systems with CDD 


Vol. 36,  No. 7, pp. 481-487, Jul.  2011


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  Abstract

Cyclic delay diversity (CDD) is a simple transmit diversity technique for an OFDM system using multiple transmit antennas. However, the performance of post-FFT estimation, i.e., integer frequency offset (IFO) is deteriorated by high frequency selectivity introduced by CDD. In this paper, the IFO estimation scheme is proposed for OFDM-based DRM+ system with CDD. Based on the pilot subset partitioning, the proposed IFO estimation scheme reduces the effect of performance degradation caused by frequency selectivity in OFDM systems with CDD . The simulation results show that the performance of the proposed IFO estimator is significantly improved when compared to that of the conventional IFO estimator.

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  Cite this article

[IEEE Style]

K. Won and Kwon, "Integer Frequency Offset Estimation by Pilot Subset Selection for DRM+ Systems with CDD," The Journal of Korean Institute of Communications and Information Sciences, vol. 36, no. 7, pp. 481-487, 2011. DOI: .

[ACM Style]

Ki Won and Kwon. 2011. Integer Frequency Offset Estimation by Pilot Subset Selection for DRM+ Systems with CDD. The Journal of Korean Institute of Communications and Information Sciences, 36, 7, (2011), 481-487. DOI: .

[KICS Style]

Ki Won and Kwon, "Integer Frequency Offset Estimation by Pilot Subset Selection for DRM+ Systems with CDD," The Journal of Korean Institute of Communications and Information Sciences, vol. 36, no. 7, pp. 481-487, 7. 2011.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880