DocumentCode
1514765
Title
Simplified soft-decision demapping algorithm for digital video broadcasting system
Author
Ryu, C.D. ; Park, Joung Won ; Sunwoo, Myung Hoon
Author_Institution
Sch. of Electr. & Comput. Eng., Ajou Univ., Suwon, South Korea
Volume
46
Issue
12
fYear
2010
Firstpage
840
Lastpage
842
Abstract
A simplified soft-decision demapping algorithm for digital video broadcasting via satellite, second generation (DVB-S2), is presented. The proposed algorithm can reduce the computational complexity required to compute the log likelihood ratio values between the received noisy symbol and possible constellation points compared to conventional algorithms. The simulation results show that the proposed algorithm has negligible performance degradation compared with conventional algorithms. Compared with the maximum algorithm, the proposed algorithm can reduce the hardware resources required by about 81%.
Keywords
digital video broadcasting; direct broadcasting by satellite; DVB-S2; computational complexity; constellation point; digital video broadcasting system; hardware resources; log likelihood ratio value; received noisy symbol; satellite; simplified soft-decision demapping algorithm;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el.2010.0043
Filename
5483958
Link To Document