发明授权
- 专利标题： Near soft-output maximum-likelihood detection for multiple-input multiple-output systems
- 专利标题（中）： 多输入多输出系统的近似软输出最大似然检测
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申请号： US11849025申请日： 2007-08-31
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公开(公告)号： US08462867B2公开(公告)日： 2013-06-11
- 发明人: Albert van Zelst , Brian Wong , D. J. Richard van Nee , Vincent K. Jones, IV , Geert Arnout Awater
- 申请人： Albert van Zelst , Brian Wong , D. J. Richard van Nee , Vincent K. Jones, IV , Geert Arnout Awater
- 申请人地址： US CA San Diego
- 专利权人： QUALCOMM Incorporated
- 当前专利权人： QUALCOMM Incorporated
- 当前专利权人地址： US CA San Diego
- 代理商 Kenyon S. Jenckes
- 主分类号： H04L5/12
- IPC分类号： H04L5/12
摘要：
Systems and methodologies are described that provide low-complexity soft-output detection for MIMO communication systems. Looping can be performed over a set of constellation points per spatial stream to obtain distance metrics for each of a series of transmitted streams, for which values for the other transmitted streams can be estimated using a MIMO channel matrix and a sub-optimal MIMO algorithm. Examples of MIMO algorithms that can be utilized include Per-Stream List Detection (PSLD), Lattice-Reduced Detection (LRD), and a Guided-M Algorithm. Performance can be further improved by pre-processing the MIMO channel matrix and/or by utilizing techniques for Enhanced Metric Usage (EMU).