Spatial multiplexing architecture with finite rate feedback
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United States of America Patent
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Issued Date -
Sep 4, 2008
app pub date -
Aug 17, 2007
filing date -
Aug 17, 2006
priority date (Note) -
Abandoned
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Abstract
A spatial multiplexing architecture is described for a MIMO communications system wherein the receiver feeds a number of bits of channel state information back to the transmitter. The architecture includes jointly designed ordered detection at the receiver and rate/power allocation at the transmitter. The receiver feeds back a finite number of bits to the transmitter regarding the detection order. The transmitter utilizes this detection order information to assign rates and powers. A Greedy ordering Rate Tailored (GRT-SMA) scheme is described which includes independent coding/decoding on each layer.
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