An Improved Autocorrelation Based Single Frequency Estimator with Reduced Complexity

Author

Yang, Hyun ; Kim, Jee-Hyun ; Shim, Eu-Suk ; Song, Hyoung-Kyu ; You, Young-Hwan

Author_Institution

Sejong Univ., Sejong

fYear

2007

fDate

27-30 Aug. 2007

Firstpage

47

Lastpage

47

Abstract

This paper proposes an improved single frequency estimator for flat fading channels. The proposed carrier frequency offset (CFO) estimator decreases the number of computations in the calculation of the autocorrelation function (AF) when compared to AF-based conventional estimators. The results shown that the proposed estimator achieves better performance than the existing estimators. Furthermore, the performance of proposed method has been observed to lie very close to the Cramer-Rao lower bound (CRLB).

Keywords

channel estimation; correlation methods; fading channels; frequency estimation; AF-based conventional estimator; Cramer-Rao lower bound; autocorrelation based single frequency estimator; carrier frequency offset estimator; flat fading channel; Amplitude estimation; Autocorrelation; Fading; Frequency estimation; Maximum likelihood estimation; Performance loss; Phase estimation; Phase shift keying; Propagation losses; Timing;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Broadband and Ultra Wideband Communications, 2007. AusWireless 2007. The 2nd International Conference on

Conference_Location

Sydney, NSW

Print_ISBN

978-0-7695-2846-5

Electronic_ISBN

978-0-7695-2846-5

Type

conf

DOI

10.1109/AUSWIRELESS.2007.23

Filename

4299696