DocumentCode
1392978
Title
Capacity Approaching Low-Rate LDGM Codes
Author
Araújo, Francisco J Vázquez ; López, Miguel González ; Castedo, Luis ; Frias, Javier Garcia
Author_Institution
Dept. of Electron. & Syst., Univ. of A Coruna, A Coruna, Spain
Volume
59
Issue
2
fYear
2011
fDate
2/1/2011 12:00:00 AM
Firstpage
352
Lastpage
356
Abstract
We study the ability of low-rate Serially-Concatenated Low Density Generator Matrix (SCLDGM) codes to approach theoretical limits. Although two layer SCLDGM codes approach capacity for medium rates (0.25 <; R <; 0.9), they do not perform adequately for lower rates. In this case, substantial performance improvements are obtained using three layers.
Keywords
block codes; concatenated codes; linear codes; capacity approaching codes; linear block codes; low-rate LDGM codes; serially-concatenated low density generator matrix codes; substantial performance improvements; Capacity approaching codes; EXIT function analysis; LDGM codes; low-rate codes;
fLanguage
English
Journal_Title
Communications, IEEE Transactions on
Publisher
ieee
ISSN
0090-6778
Type
jour
DOI
10.1109/TCOMM.2010.112310.090086
Filename
5654634
Link To Document