Title :
A Method for Constructing LDPC Codes with Low Error Floor
Author :
Sharon, Eran ; Litsyn, Simon
Author_Institution :
Dept. of Electr. Eng., Tel Aviv Univ.
Abstract :
This paper describes a novel progressive edge growth (PEG) algorithm for constructing LDPC codes with minimized block error probability over the binary erasure channel (BEC). The constructed codes provide superior performance and lower error floor compared to codes generated by previously known algorithms. Furthermore, an upper bound on the expected block error probability in the error floor region of the generated code is derived
Keywords :
binary codes; channel coding; error statistics; parity check codes; LDPC codes; binary erasure channel; block error probability; lower error floor; progressive edge growth; Belief propagation; Bipartite graph; DC generators; Error probability; Floors; Greedy algorithms; Iterative decoding; Minimization methods; Parity check codes; Upper bound;
Conference_Titel :
Information Theory, 2006 IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
1-4244-0505-X
Electronic_ISBN :
1-4244-0504-1
DOI :
10.1109/ISIT.2006.262096
