DocumentCode
3207970
Title
Parity and column twist bit interleaver for DVB-T2 LDPC codes
Author
Yokokawa, Takashi ; Kan, Makiko ; Okada, Satoshi ; Sakai, Lui
Author_Institution
Sony Corp., Tokyo
fYear
2008
fDate
1-5 Sept. 2008
Firstpage
123
Lastpage
127
Abstract
We introduce a parity and column twist bit interleaver which improves performance of DVB-T2 LDPC codes in channels with erasure. The key idea is avoiding multiple bits on constellation symbols which are connected to the same check node, in order to minimize damage by an erased symbol. By simulation we observed significant performance improvement in faded erasure channels, and the higher erasure probability, the more gain we observed.
Keywords
digital video broadcasting; interleaved codes; parity check codes; DVB-T2 LDPC codes; column twist bit interleaver; erasure probability; faded erasure channels; parity twist bit interleaver; Belief propagation; Block codes; Cities and towns; Decoding; Digital video broadcasting; Parity check codes; Performance gain; Poles and towers; Satellite broadcasting; Turbo codes;
fLanguage
English
Publisher
ieee
Conference_Titel
Turbo Codes and Related Topics, 2008 5th International Symposium on
Conference_Location
Lausanne
Print_ISBN
978-1-4244-2862-5
Electronic_ISBN
978-1-4244-2863-2
Type
conf
DOI
10.1109/TURBOCODING.2008.4658684
Filename
4658684
Link To Document