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
OG exemplary drawing
 
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.