US 7,321,644 B2 | ||
Low-complexity, symbol-based, reduced substreams maximum likelihood decoder and method for a multiple-input, multiple-output communication system | ||
David J. Love, Garland, Tex. (US); Srinath Hosur, Plano, Tex. (US); and Anuj Batra, Dallas, Tex. (US) | ||
Assigned to Texas Instruments Incorporated, Dallas, Tex. (US) | ||
Filed on Jun. 08, 2004, as Appl. No. 10/863,455. | ||
Prior Publication US 2005/0271166 A1, Dec. 08, 2005 | ||
Int. Cl. H03D 1/00 (2006.01) |
U.S. Cl. 375—341 [375/342] | 21 Claims |
1. A greater likelihood decoder, comprising:
a suboptimal decoder configured to analyze a received symbol vector to generate substream indicators and a decoded symbol
vector estimate;
weakest substreams decision logic, coupled to said suboptimal decoder, configured to receive said substream indicators and
select weakest ones thereof; and
subspace search logic, coupled to said suboptimal decoder and said weakest substreams decision logic, configured to further
select a reduced substreams maximum likelihood (RSML) decoded symbol vector from a subspace of decoded symbol vector candidates
derived from said decoded symbol vector estimate and said weakest ones.
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