Invention Grant
- Patent Title: Near soft-output maximum-likelihood detection for multiple-input multiple-output systems
- Patent Title (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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Application No.: US11849025Application Date: 2007-08-31
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Publication No.: US08462867B2Publication Date: 2013-06-11
- Inventor: Albert van Zelst , Brian Wong , D. J. Richard van Nee , Vincent K. Jones, IV , Geert Arnout Awater
- Applicant: Albert van Zelst , Brian Wong , D. J. Richard van Nee , Vincent K. Jones, IV , Geert Arnout Awater
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Kenyon S. Jenckes
- Main IPC: H04L5/12
- IPC: H04L5/12
Abstract:
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).
Public/Granted literature
- US20090060078A1 NEAR SOFT-OUTPUT MAXIMUM-LIKELIHOOD DETECTION FOR MULTIPLE-INPUT MULTIPLE-OUTPUT SYSTEMS Public/Granted day:2009-03-05
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