Satoshi Gounai Tomoaki Ohtsuki Lowering Error Floor of Irregular LDPC Codes by CRC and OSD Algorithm. 1-10 2006 89-B IEICE Transactions 1 http://dx.doi.org/10.1093/ietcom/e89-b.1.1 db/journals/ieicet/ieicet89b.html#GounaiO06