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An Improved Large Frequency Offset Estimator Using Interpolation of Expanded Periodogram
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- Authors
- Seunghyun NAM, Jong-Min PARK, Heewook KIM, Tae Chul HONG, Kunseok KANG, Bon Jun KU, Do Seob AHN
- Issue Date
- 2012-09
- Citation
- IEICE Transactions on Communications, v.E95-B, no.9, pp.3007-3010
- ISSN
- 0916-8516
- Publisher
- 일본, 전자정보통신학회 (IEICE)
- Language
- English
- Type
- Journal Article
- Abstract
- 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. Copyright © 2012 The Institute of Electronics.
- KSP Keywords
- Error performance, Evolution system, Frequency Offset Estimation, Long term Evolution(LTE), mean square error(MSE), simulation results