A New Frequency Offset Estimation for OFDM-Based Systems

Author

Fang, Zhi ; Xiao, Wanang ; YinShi

Author_Institution

Inst. of Semicond., Chinese Acad. of Sci., Beijing

fYear

2006

fDate

24-26 May 2006

Firstpage

1

Lastpage

4

Abstract

A new carrier frequency offset estimation scheme in orthogonal frequency division multiplexing (OFDM) is proposed. The scheme includes coarse frequency offset estimation and fine frequency offset estimation. The coarse frequency offset estimation method we present is a improvement of Zhang´s method. The estimation range of the new method is as large as the overall signal-band width. A new fine frequency offset estimation algorithm is also discussed in this paper. The new algorithm has a better performance than the Schmidl´s algorithm. The system we use to calculate and simulate is based on the high rate WLAN standard adopted by the IEEE 802.11 standardization group. Numerical results are presented to demonstrate the performance of the proposed algorithm

Keywords

IEEE standards; OFDM modulation; frequency estimation; telecommunication standards; IEEE 802.11 standardization group; OFDM-based systems; Schmidl algorithm; Zhang method; carrier frequency offset estimation; coarse frequency offset estimation; fine frequency offset estimation; high rate WLAN standard; orthogonal frequency division multiplexing; Bandwidth; Estimation error; Frequency estimation; Frequency measurement; Frequency synchronization; Maximum likelihood estimation; OFDM; Standardization; Timing; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics and Applications, 2006 1ST IEEE Conference on

Conference_Location

Singapore

Print_ISBN

0-7803-9513-1

Electronic_ISBN

0-7803-9514-X

Type

conf

DOI

10.1109/ICIEA.2006.257282

Filename

4025883