A Novel Timing Synchronization Method for MIMO OFDM Systems

Author

Feng, Chong ; Zhang, Jianhua ; Zhang, Yanyan ; Xia, Minghua

Author_Institution

Key Lab. of Universal Wireless Commun., Beijing Univ. of Posts & Telecommun., Beijing

fYear

2008

fDate

11-14 May 2008

Firstpage

913

Lastpage

917

Abstract

This paper presents a timing synchronization method with shift-orthogonal constant amplitude zero auto correlation (CAZAC) sequences for the multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems. Utilizing the unique properties of CAZAC sequences, at the receivers, unit pulses can be obtained by the symmetrical correlation to detect time offsets and differentiate inter-transmitter delays (ITDs). The performance of the proposed method is compared with traditional methods at different values of ITDs. Simulations demonstrate that the proposed CAZAC sequence-based method provides high accuracy in detecting the different time offsets caused by the distributed transmitters of the MIMO OFDM systems.

Keywords

MIMO communication; OFDM modulation; correlation methods; sequences; synchronisation; MIMO OFDM system; inter transmitter delay; multiple input multiple output system; orthogonal frequency division multiplexing; shift-orthogonal constant amplitude zero auto correlation sequence; timing synchronization method; Autocorrelation; Delay; Frequency synchronization; MIMO; OFDM; Technological innovation; Telecommunications; Timing; Transmitters; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2008. VTC Spring 2008. IEEE

Conference_Location

Singapore

ISSN

1550-2252

Print_ISBN

978-1-4244-1644-8

Electronic_ISBN

1550-2252

Type

conf

DOI

10.1109/VETECS.2008.197

Filename

4525753