Synchronization for MIMO-OFDM systems based on preamble signals

Author

Biao Yan ; Mengdong Qiu ; Qian Hu ; Jiamin Wang ; Xianggang Sun

Author_Institution

Sch. of Inf. Eng., Yangzhou Univ., Yangzhou, China

fYear

2011

fDate

14-16 Oct. 2011

Firstpage

15

Lastpage

18

Abstract

An accurate technique for timing and frequency synchronization of multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems is proposed in this paper. A new preamble signal which adapts to the MIMO-OFDM synchronization, is derived based on GCL sequences. The carrier frequency offset (CFO) estimation is obtained through taking double correlation operations on the preamble signal, and used in the timing synchronization to gain accurate time estimation. From analysis, it is shown that at the same SNR, the proposed method can reduce the BER and the frame transmission BER of the system compared to the conventional method.

Keywords

MIMO communication; OFDM modulation; error statistics; frequency estimation; synchronisation; BER; CFO estimation; GCL sequence; MIMO-OFDM system; SNR; carrier frequency offset estimation; frequency synchronization technique; multiple-input multiple-output-orthogonal frequency division multiplexing system; preamble signal; time estimation; timing synchronization technique; GCL sequences; MIMO-OFDM systems; synchronization;

fLanguage

English

Publisher

iet

Conference_Titel

Communication Technology and Application (ICCTA 2011), IET International Conference on

Conference_Location

Beijing

Type

conf

DOI

10.1049/cp.2011.0621

Filename

6192817