Title :
Decoding low-density parity check codes with normalized APP-based algorithm
Author :
Chen, Jinghu ; Fossorier, Marc P C
Author_Institution :
Dept. of Electr. Eng., Hawaii Univ., Honolulu, HI, USA
Abstract :
We propose a normalized a posteriori probability (APP) based algorithm for the decoding of low-density parity check (LDPC) codes. The normalized APP-based algorithm utilizes normalization to improve the accuracy of the soft values delivered by the simplified APP-based algorithm from one iteration to another during the iterative decoding, and can achieve very good tradeoff between decoding complexity and performance
Keywords :
computational complexity; cyclic codes; error correction codes; geometric codes; graph theory; iterative decoding; probability; LDPC codes; a posteriori probability based algorithm; belief propagation algorithm; bipartite graph; cyclic codes; decoding complexity; error control coding; geometric codes; iterative decoding; low-density parity check codes; soft decision algorithm; sum-product algorithm; Bipartite graph; Circuits; Error correction; Error correction codes; Geometry; Iterative algorithms; Iterative decoding; Logic; Parity check codes; Registers;
Conference_Titel :
Global Telecommunications Conference, 2001. GLOBECOM '01. IEEE
Conference_Location :
San Antonio, TX
Print_ISBN :
0-7803-7206-9
DOI :
10.1109/GLOCOM.2001.965573
