Title :
A pragmatic approach to designing irregular LDPC codes
Author :
Jiancun Zuo ; Fangming Zhao ; Qiudong Sun
Author_Institution :
Sch. of Electron. & Electr. Eng., Shanghai Second Polytech. Univ., Shanghai, China
Abstract :
This paper proposes a pragmatic algorithm to design optimal irregular low-density parity-check codes, which adopts a one-dimensional density evolution to calculate the noise threshold and utilizes fast-convergence differential evolution to search the optimal degree profiles. Simulation results show that the irregular LDPC codes optimized by the presented algorithm can also beat Turbo codes even at moderate block length.
Keywords :
parity check codes; fast-convergence differential evolution; irregular LDPC code; noise threshold; one-dimensional density evolution; optimal irregular low-density parity-check code; pragmatic algorithm; RNA; irregular low-density parity-check codes; optimization; turbo codes;
Conference_Titel :
Software Engineering and Service Science (ICSESS), 2013 4th IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4673-4997-0
DOI :
10.1109/ICSESS.2013.6615336
