Analysis of stop criterions in the decoder of parallel concatenated LDPC codes
Xiaohu You · Journal of Communications · 2006
To reduce the computation complexity of the decoder of parallel concatenated Gallager code, two kinds of low complexity stop criterion were proposed. The criterions decide whether the iteration of the decoder should be stopped based on the change of the variance of extrinsic information. The computer simulation results prove that the stop criteri-ons could reduce the computation complexity of the PCGC decoder with negligible performance loss.