A New Carrier Frequency Offset Estimation Method for OFDM Based on Time Oversampling

Author

Yang, Xiaodong ; Zhang, Haiyan ; Yang, Meilin

Author_Institution

Dept. of Inf. & Commun. Eng., Harbin Eng. Univ., Harbin

fYear

2007

fDate

21-25 Sept. 2007

Firstpage

322

Lastpage

325

Abstract

Whether the advantages of OFDM can be made full use of depends to a large extent on the performance of synchronization. After analyzing the received OFDM signal, this paper proposes a new frequency offset estimation method based on time oversampling for OFDM (orthogonal frequency division multiplexing). The proposed method is a blind estimation algorithm and also uses a slip window. From the results, it is shown that the accuracy of the proposed algorithm, as well as the resistance to frequency selective fading and noise, is much better than that of the algorithm based on cyclic prefix.

Keywords

OFDM modulation; blind equalisers; channel estimation; fading channels; OFDM; blind estimation algorithm; carrier frequency offset estimation; cyclic prefix; frequency selective fading; orthogonal frequency division multiplexing; slip window; time oversampling; Digital video broadcasting; Fading; Frequency domain analysis; Frequency estimation; Frequency synchronization; OFDM; Satellite broadcasting; Signal analysis; TV broadcasting; Wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing, 2007. WiCom 2007. International Conference on

Conference_Location

Shanghai

Print_ISBN

978-1-4244-1311-9

Type

conf

DOI

10.1109/WICOM.2007.87

Filename

4339862