Enhanced symbol synchronization method for OFDM system in SFN channels

Author

Palin, Arto ; Rinne, Jukka

Author_Institution

Digital Media Inst., Tampere Univ. of Technol., Finland

Volume

5

fYear

1998

fDate

1998

Firstpage

2788

Abstract

A new symbol synchronization method for OFDM-system is presented. This method is based on a double correlation structure. Also the method that will compensate the effect of inaccurate FFT position is presented. The presented methods will improve the accuracy of the symbol synchronization in channels that have long and strong echoes, as can be the case with single frequency network (SFN). However, they are also usable in Ricean and Rayleigh type of channels. Furthermore, when the presented symbol synchronization method is combined with the compensator that corrects the inaccurate FFT position, there is no need for fine synchronization

Keywords

OFDM modulation; Rayleigh channels; Rician channels; correlation methods; digital audio broadcasting; digital video broadcasting; fast Fourier transforms; synchronisation; DAB; DVB-T systems; OFDM system; Rayleigh channel; Rician channel; SFN channels; compensator; digital audio broadcasting; digital terrestrial video broadcasting; double correlation structure; enhanced symbol synchronization method; inaccurate FFT position compensation; large delay spreads; multipath environment; orthogonal frequency division multiplexing; single frequency network; symbol synchronization accuracy; Bit error rate; Correlators; Delay; Detection algorithms; Digital audio broadcasting; Digital modulation; Digital video broadcasting; Frequency synchronization; OFDM modulation; Robustness;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 1998. GLOBECOM 1998. The Bridge to Global Integration. IEEE

Conference_Location

Sydney,NSW

Print_ISBN

0-7803-4984-9

Type

conf

DOI

10.1109/GLOCOM.1998.776496

Filename

776496