发明名称 |
Soft input decoding for linear codes |
摘要 |
<p>A method of approximate max-log-a-posteriori decoding soft input information related to a transmitted word of a linear block code (n, k) and providing hard or soft output information is disclosed. The method comprises the steps of forming a reliability vector from the input information, identifying (n-k) linearly independent least reliable symbols and k most reliable symbols, converting a parity check matrix of the linear block code to a pseudo-systematic form with respect to the least reliable symbols, calculating extrinsic information and composite information for the most reliable symbols using the soft input information and the pseudo-systematic parity check matrix, and calculating extrinsic information for the least reliable systems using composite information for the most reliable symbols. <IMAGE></p> |
申请公布号 |
EP1475893(A3) |
申请公布日期 |
2005.05.25 |
申请号 |
EP20040010449 |
申请日期 |
2004.05.03 |
申请人 |
HER MAJESTY THE QUEEN IN RIGHT OF CANADA AS REPRESENTED BY THE MINISTER OF INDUSTRY THROUGH THE COMMUNICATIONS RESEARCH CENTRE |
发明人 |
KERR, RON;LODGE, JOHN;GUINAND, PAUL |
分类号 |
H03M13/05;H03M13/11;H03M13/13;H03M13/19;H03M13/37;H03M13/39;H03M13/45;(IPC1-7):H03M13/05 |
主分类号 |
H03M13/05 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|