IEEE International Symposium on Information Theory (ISIT)
Design of an LDPC code with low error floor
Sang Hyun Lee, Kwang Soon Kim, Jae Kyun Kwon, Yun Hee Kim, Jae Young Ahn
Abstract
A search algorithm for stopping sets in a Tanner graph is proposed for designing good low-density parity-check (LDPC) codes. By applying the belief-propagation algorithm with messages containing the information of originated variable nodes and their connected edges, the stopping sets can be detected. Furthermore, a code design method using the algorithm is presented and the performances of the designed code over several channels are shown