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학술지 An Improved Large Frequency Offset Estimator Using Interpolation of Expanded Periodogram
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저자
남승현, 박종민, 김희욱, 홍태철, 강군석, 구본준, 안도섭
발행일
201209
출처
IEICE Transactions on Communications, v.E95-B no.9, pp.3007-3010
ISSN
0916-8516
출판사
일본, 전자정보통신학회 (IEICE)
DOI
https://dx.doi.org/10.1587/transcom.E95.B.3007
협약과제
12PR4500, 지상 이동통신을 위한 2.1GHz 위성 주파수 대역 최적 활용기술 개발, 구본준
초록
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.
키워드
Estimation, Large frequency offset, Long term evolution, Periodogram
KSP 제안 키워드
Error performance, Evolution system, Frequency Offset Estimation, Long term Evolution(LTE), mean square error(MSE), simulation results