A Novel Carrier Frequency Offset Estimation Method for IEEE 802.16E System

Author

Zhou, Hua ; Hayashi, Hiroyuki ; Kubo, Tokuro ; Zhang, Jie

Author_Institution

Fujitsu R&D Center, Beijing

fYear

2007

fDate

26-30 Nov. 2007

Firstpage

2826

Lastpage

2830

Abstract

A new carrier frequency offset estimation method is proposed for OFDM based IEEE 802.16E system, with good tolerance to long-delay-spread multipath fading and time synchronization error. New designed correlation method utilizing approximate symmetry of the preamble can overcome the negative influence of imperfect periodicity caused by virtual subcarriers of preamble symbol. Simulations show that the proposed method can be more effective than CP based method in practical multipath fading channel, in terms of root mean square of estimation error. And the proposed method can be easily generalized for other OFDM based systems with inter- training symbol subcarrier spacing other than 3.

Keywords

OFDM modulation; WiMax; correlation methods; fading channels; frequency estimation; mean square error methods; multipath channels; synchronisation; OFDM based IEEE 802.16E system; carrier frequency offset estimation method; correlation method; inter-training symbol subcarrier; long-delay-spread multipath fading; preamble symbol virtual subcarriers; root mean square; time synchronization error; wireless metropolitan area networks; Correlation; Design methodology; Estimation error; Fading; Frequency estimation; Frequency synchronization; OFDM modulation; Proposals; Root mean square; Timing;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 2007. GLOBECOM '07. IEEE

Conference_Location

Washington, DC

Print_ISBN

978-1-4244-1042-2

Electronic_ISBN

978-1-4244-1043-9

Type

conf

DOI

10.1109/GLOCOM.2007.535

Filename

4411445