Differential transmitter diversity technique for wireless communications
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United States of America Patent
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Jan 16, 2007
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N/A
app pub date -
Mar 24, 2005
filing date -
Feb 10, 1999
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Abstract
Input signals of each frame are encoded by mapping the signals onto a coordinate system dictated by the symbols of the previous frame, and symbols from a constellation are selected based on the results of such mapping. Received signals are detected by preprocessing the signals detected at each antenna with signals detected by the antenna at the immediately previous frame, and then applied to a maximum likelihood detector circuit, followed by an inverse mapping circuit.
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