Title :
Detailed representation of irregular LDPC code ensembles and density evolution
Author :
Kasai, Kenta ; Shibuya, Tomoharu ; Sakaniwa, Kohichi
Author_Institution :
Dept. of Comm. & Integrated Syst., Tokyo Inst. of Technol., Japan
fDate :
29 June-4 July 2003
Abstract :
We construct new families of low-density parity-check (LDPC) code ensembles which are subensembles of conventional irregular LDPC code ensembles and develop density evolution for those ensembles. Further, we find an ensemble which has a better threshold than that of its super ensemble.
Keywords :
parity check codes; density evolution; irregular low-density parity-check code; Bipartite graph; Decision support systems; Educational technology; Electronic mail; Equations; H infinity control; Joining processes; Multimedia systems; Parity check codes; Research and development;
Conference_Titel :
Information Theory, 2003. Proceedings. IEEE International Symposium on
Print_ISBN :
0-7803-7728-1
DOI :
10.1109/ISIT.2003.1228135
