An ICI-free synchronization algorithm in MIMOOFDM system

Author

Ma, Zhangyong ; Wu, Xiaoyun ; Zhu, Wenwu

Author_Institution

Commun. Technol. Lab, Intel, Beijing

fYear

2007

fDate

5-7 Feb. 2007

Abstract

This paper presents a time-frequency synchronization algorithm in MIMO-OFDM system based on the special known preamble symbol. Due to the high date rate in next generation system, the synchronization performance is affected by multipath channel. In the paper, the IFFT characteristic of some special code is applied in order to remove the affection partially or completely. The detail synchronization procedure is presented in detail. Theoretical analysis and simulation results show that the estimator is robust in the wireless channel and can estimate the timing error and frequency offset of the system accurately. Moreover, the algorithm can be implemented in the real system simply

Keywords

MIMO communication; OFDM modulation; codes; estimation theory; interference; synchronisation; time-frequency analysis; wireless channels; IFFT; MIMO-OFDM system; frequency offset estimation; inter-carrier-interference-free synchronization algorithm; special code; time-frequency synchronization algorithm; timing error estimation; wireless channel; Algorithm design and analysis; Error correction; Frequency estimation; Frequency synchronization; MIMO; OFDM; Robustness; Timing; Transmitters; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Pervasive Computing, 2007. ISWPC '07. 2nd International Symposium on

Conference_Location

San Juan

Print_ISBN

1-4244-0523-8

Electronic_ISBN

1-4244-0523-8

Type

conf

DOI

10.1109/ISWPC.2007.342608

Filename

4147067