Title :
Reliability-based iterative decoding of LDPC codes using segmented accumulation of likelihood ratio
Author_Institution :
Sch. of Electron. Eng., Huaihai Inst. of Technol., Lianyungang, China
Abstract :
In this work, we present an improvement on the belief propagation (BP) algorithm concatenated serially with order statistic decoding (OSD) for low-density parity-check (LDPC) codes. We use the segmented accumulation of log-likelihood ratio (LLR) of variance nodes as the ordered information metric to reconstruct received sequence. This method can reduce the sensitivity of accumulated parameter selection to the fluctuation of performance, and further improve decoding performance.
Keywords :
iterative decoding; parity check codes; reliability; statistical analysis; LDPC codes; belief propagation algorithm; iterative decoding; low density parity check; order statistic decoding; ordered information metric; reliability; segmented accumulated log-likelihood ratio; Educational institutions; Oscillators; low-density parity-check codes; reliability-based decoding; segmented accumulated log-likelihood ratio (LLR);
Conference_Titel :
Advanced Computer Theory and Engineering (ICACTE), 2010 3rd International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-6539-2
DOI :
10.1109/ICACTE.2010.5578935
