Synchronization for B3G MIMO OFDM in DL Initial Acquisition by CAZAC Sequence

Author

Li, Li ; Zhou, Ping

Author_Institution

Electromagn. Acad., Zhejiang Univ., Hangzhou

Volume

2

fYear

2006

fDate

25-28 June 2006

Firstpage

1035

Lastpage

1039

Abstract

Orthogonal frequency division multiple access (OFDMA) is considered to be a prospective scheme in beyond 3G communication due to its advantage in robustness against multi-path, while it´s very sensitive to frequency and timing offset. This paper proposes an effective synchronization scheme based on new preamble structure for MIMO OFDM downlink (DL). CAZAC sequence is utilized in training symbol design regarding of its correlation properties. Synchronization strategy based on CAZAC preamble is accomplished in this improved algorithm. The simulation result illustrates that the proposed scheme works about 2 dB better than conventional method in high speed multi-path environment

Keywords

3G mobile communication; MIMO communication; OFDM modulation; correlation methods; frequency division multiple access; synchronisation; CAZAC sequence; MIMO OFDM system; beyond 3G communication; constant amplitude zero autocorrelation; downlink initial acquisition; multiple input multiple output system; orthogonal frequency division multiplexing; synchronization scheme; training symbol design; Autocorrelation; Bandwidth; Electromagnetics; Frequency conversion; Frequency synchronization; MIMO; OFDM; Robustness; Timing; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Circuits and Systems Proceedings, 2006 International Conference on

Conference_Location

Guilin

Print_ISBN

0-7803-9584-0

Electronic_ISBN

0-7803-9585-9

Type

conf

DOI

10.1109/ICCCAS.2006.284825

Filename

4064066