NEAR SOFT-OUTPUT MAXIMUM-LIKELIHOOD DETECTION FOR MULTIPLE-INPUT MULTIPLE-OUTPUT SYSTEMS
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).
申请公布号
WO2009029730(A1)
申请公布日期
2009.03.05
申请号
WO2008US74695
申请日期
2008.08.28
申请人
QUALCOMM INCORPORATED;VAN ZELST, ALBERT;WONG, BRIAN;VAN NEE, DIDIER JOHANNES RICHARD;JONES IV, VINCENT K.;AWATER, GEERT ARNOUT
发明人
VAN ZELST, ALBERT;WONG, BRIAN;VAN NEE, DIDIER JOHANNES RICHARD;JONES IV, VINCENT K.;AWATER, GEERT ARNOUT