Title :
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
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;
Conference_Titel :
Industrial Electronics and Applications (ICIEA), 2014 IEEE 9th Conference on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4799-4316-6
DOI :
10.1109/ICIEA.2014.6931288
