Comparison of the non-rotated and rotated constellations used in DVB-T2 standard

Author

Polak, Ladislav ; Kratochvil, Tomas

Author_Institution

Dept. of Radio Electron., Brno Univ. of Technol., Brno, Czech Republic

fYear

2012

fDate

17-18 April 2012

Firstpage

1

Lastpage

4

Abstract

This paper deals with the comparison and performance of the non-rotated and rotated constellations, which are used in the DVB-T2 (Second Generation Digital Terrestrial Television Broadcasting) standard. Rotated constellation is one of the main innovations in DVB-T2 system configuration and should improve performance in frequency selective channels. For the determination of differences between the techniques of non-rotated and rotated constellations, a Gaussian (reference) and 0 dB Echo channel models were used. Simulation results of the BER (Bit Error Ratio) before and after LDPC decoding for both types of constellations were obtained and compared. An application for analysis and simulation of different constellation techniques was developed in MATLAB. Finally, achieved results are evaluated and discussed.

Keywords

digital video broadcasting; error statistics; innovation management; parity check codes; telecommunication channels; BER; DVB-T2 standard; Gaussian models; LDPC decoding; MATLAB; bit error ratio; constellation techniques; echo channel models; frequency selective channels; innovations; nonrotated constellations; rotated constellations; second generation digital terrestrial television broadcasting standard; Bit error rate; Decoding; Digital video broadcasting; Parity check codes; Phase shift keying; Standards; BER after LDPC decoding; DVB-T2; LDPC encoding and decoding; non-rotated and rotated constellations;

fLanguage

English

Publisher

ieee

Conference_Titel

Radioelektronika (RADIOELEKTRONIKA), 2012 22nd International Conference

Conference_Location

Brno

Print_ISBN

978-1-4673-0659-1

Type

conf

Filename

6207641