Summary
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An Improved Large Frequency Offset Estimator Using Interpolation of Expanded Periodogram Seunghyun NAM Jong-Min PARK Heewook KIM Tae Chul HONG Kunseok KANG Bon Jun KU Do Seob AHN Publication IEICE TRANSACTIONS on Communications Vol.E95-B No.9 pp.3007-3010 Publication Date: 2012/09/01 Online ISSN: 1745-1345 DOI: 10.1587/transcom.E95.B.3007 Print ISSN: 0916-8516 Type of Manuscript: LETTER Category: Wireless Communication Technologies Keyword: large frequency offset, estimation, periodogram, long term evolution, Full Text: PDF(109.5KB)>>
Summary: The periodogram scheme is a versatile method for large frequency offset estimation which requires preambles, in general, and only a few reference signals. However, the drawback of the conventional scheme is its inaccuracy in detecting the integer part of frequency offset which dominates the accuracy of frequency offset estimation. In order to increase the accuracy of the estimation, we directly interpolate a coefficient of the periodogram. The conventional periodogram and proposed schemes are compared in terms of the mean square error performance in the long term evolution system. The performance of the proposed method is compared with the conventional one and the simulation results indicate the better performance of the proposed one. | |||||
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