Title :
Error floors of non-binary LDPC codes
Author :
Nozaki, Takayuki ; Kasai, Kenta ; Sakaniwa, Kohichi
Author_Institution :
Dept. of Commun. & Integrated Syst., Tokyo Inst. of Technol., Tokyo, Japan
Abstract :
In this paper, we analyze (2, k)-regular non-binary low-density parity-check codes over the binary erasure channels. We propose a method to improve the error floors by optimizing labels in zigzag cycles in the Tanner graph. We analyze the error floors for codes designed by the proposed optimization method and show that the error floors are decreasing in the size of Galois field.
Keywords :
optimisation; parity check codes; Galois field; Tanner graph; binary erasure channels; error floors; low-density parity-check codes; non-binary LDPC codes; optimization method; zigzag cycles; Belief propagation; Bipartite graph; Decoding; Design methodology; Error analysis; Galois fields; Hydrogen; Niobium; Optimization methods; Parity check codes;
Conference_Titel :
Information Theory Proceedings (ISIT), 2010 IEEE International Symposium on
Conference_Location :
Austin, TX
Print_ISBN :
978-1-4244-7890-3
Electronic_ISBN :
978-1-4244-7891-0
DOI :
10.1109/ISIT.2010.5513602
