Changhao Zhai Chengxin Xu Xin Zhang Yafeng Wang Research on stopping criterion for irregular LDPC codes decoding. 1321-1324 2009 IWCMC http://doi.acm.org/10.1145/1582379.1582668 conf/iwcmc/2009 db/conf/iwcmc/iwcmc2009.html#ZhaiXZW09