DocumentCode
3006429
Title
Performance improvement of rateless code by non-uniform selection of messages in encoding
Author
Lim, Hyung Taek ; Joo, Eon Kyeong
Author_Institution
Sch. of Electron. Eng., Kyungpook Nat. Univ., Daegu, South Korea
fYear
2011
fDate
21-24 Nov. 2011
Firstpage
517
Lastpage
520
Abstract
LT(Luby transform) encoding is widely used for rateless codes. But uniform choice of messages in the LT encoding process conflicts with the merit of BP(belief propagation) decoding. So more codeword symbols than expected are required for the reliable recovery of message symbols. Thus a new encoding scheme with non-uniform selection of messages that can decrease average overhead and computational complexity is proposed and its performance is analyzed and compared with the conventional encoding scheme in this paper.
Keywords
computational complexity; decoding; transform coding; BP decoding; LT encoding; Luby transform encoding; belief propagation decoding; codeword symbols; computational complexity; message nonuniform selection; message symbol recovery; rateless code; Computational complexity; Decoding; Encoding; Error correction codes; Receivers; Telecommunication standards; Transmitters; erasure correction codes; non-uniform selection; rateless codes;
fLanguage
English
Publisher
ieee
Conference_Titel
TENCON 2011 - 2011 IEEE Region 10 Conference
Conference_Location
Bali
ISSN
2159-3442
Print_ISBN
978-1-4577-0256-3
Type
conf
DOI
10.1109/TENCON.2011.6129158
Filename
6129158
Link To Document