Robust preamble design for OFDM broadcast system over dispersive fading channels

Author

Chengran Dai ; Qiang Gu ; Fang Liu ; Houjun Sun

Author_Institution

Dept. of Electron. Eng., Beijing Inst. of Technol., Beijing, China

fYear

2014

fDate

9-11 June 2014

Firstpage

888

Lastpage

890

Abstract

Broadcast preamble such as the P1 symbol in DVB-T2 carries signalling to inform the receivers of the transmission mode and ease initial synchronization. However, all the existing preamble schemes based on the channel correlation of adjacent frequencies may fail to work in practical channel conditions. In this paper, we propose a preamble scheme for OFDM broadcast system, exploiting the correlation of adjacent frequencies in the same time and the correlation of the same frequency in the adjacent time, with robust performance over dispersive fading channels.

Keywords

OFDM modulation; digital video broadcasting; dispersive channels; fading channels; synchronisation; DVB-T2; OFDM broadcast system; P1 symbol; adjacent frequencies; channel conditions; channel correlation; dispersive fading channels; robust preamble design; synchronization; transmission mode; Correlation; Demodulation; Digital video broadcasting; OFDM; Receivers; Time-frequency analysis; broadcasting signalling; dispersive fading channels; preamble; robustness;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics and Applications (ICIEA), 2014 IEEE 9th Conference on

Conference_Location

Hangzhou

Print_ISBN

978-1-4799-4316-6

Type

conf

DOI

10.1109/ICIEA.2014.6931288

Filename

6931288