Improving the Belief-Propagation Convergence of Irregular LDPC Codes Using Column-Weight Based Scheduling

• Main Authors: Aslam, Chaudhry Adnan, Guan, Yong Liang, Cai, Kui
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2015
• Subjects: Belief-propagation; Rayleigh fading; LDPC codes; Shuffled decoding; Column-weight; Decoding schedule; AWGN
• Online Access: https://hdl.handle.net/10356/81360; http://hdl.handle.net/10220/39236
• Institution: Nanyang Technological University

In this letter, a novel scheduling scheme for decoding irregular low-density parity-check (LDPC) code, based on the column weight of variable nodes in the code graph, is introduced. In this scheme, the irregular LDPC code is decoded using the shuffled belief-propagation (BP) algorithm by selecti...