Title :
Design of an LDPC code with low error floor
Author :
Lee, Sang Hyun ; Kim, Kwang Soon ; Kwon, Jae Kyun ; Kim, Yun Hee ; Ahn, Jae Young
Author_Institution :
Telecomm. Res. Lab., Electronics & Telecommun. Res. Inst., Daejeon
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
Keywords :
graph theory; parity check codes; search problems; Tanner graph; belief-propagation algorithm; code design method; low-density parity-check codes; search algorithm; Algorithm design and analysis; Decoding; Design engineering; Design methodology; Electronic mail; Equations; Lifting equipment; Parity check codes; Region 1; Telecommunications;
Conference_Titel :
Information Theory, 2005. ISIT 2005. Proceedings. International Symposium on
Conference_Location :
Adelaide, SA
Print_ISBN :
0-7803-9151-9
DOI :
10.1109/ISIT.2005.1523486
