Lowering Error Floors of Irregular LDPC Codes by Combining Construction and Decoding
Xiaopeng Jiao, Jianjun Mu, Fan FANG, Rong Xia Sun · IEICE Transactions on Communications · 2012
Irregular low-density parity-check (LDPC) codes generally have good decoding performance in the waterfall region, but they exhibit higher error floors than regular ones. In this letter, we present a hybrid method, which combines code construction and the iterative decoding algorithm, to tackle this problem. Simulation results show that the proposed scheme decreases the error floor significantly for irregular LDPC codes over binary-input additive white Gaussian noise (BIAWGN) channel.