A Novel Coarse Time Synchronization Algorithm for MIMO-OFDM Systems

Author

Yu Zhang ; Naitong Zhang

Author_Institution

Sch. of Electron. & Inf. Technol., Harbin Inst. of Technol., Harbin

fYear

2008

fDate

12-14 Oct. 2008

Firstpage

1

Lastpage

4

Abstract

This paper proposes a coarse time synchronization method which reduces the influence of the inter symbol interference(ISI) for MIMO-OFDM systems. The proposed method extracts the timing which is not disturbed by delay spread within the guard interval (GI) by utilizing the cyclic prefix (CP). Thus, the proposed method is effective in reducing the influence of the ISI. Simulation results demonstrate that the proposed coarse time synchronization algorithm has a satisfactory performance even at a low SNR in rich multipath environment. And the synchronization performances in MIMO channel are super to those in SISO channel for its larger diversity gain.

Keywords

MIMO communication; OFDM modulation; intersymbol interference; MIMO-OFDM systems; coarse time synchronization algorithm; cyclic prefix; inter symbol interference; Delay; Demodulation; Frequency estimation; Frequency synchronization; Intersymbol interference; MIMO; Maximum likelihood estimation; OFDM; Paper technology; Timing;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing, 2008. WiCOM '08. 4th International Conference on

Conference_Location

Dalian

Print_ISBN

978-1-4244-2107-7

Electronic_ISBN

978-1-4244-2108-4

Type

conf

DOI

10.1109/WiCom.2008.137

Filename

4678046