Modulation scheme for orthogonal frequency division multiplexing systems or the like
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United States of America Patent
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Mar 30, 2010
Grant Date -
Mar 17, 2005
app pub date -
Sep 17, 2003
filing date -
Sep 17, 2003
priority date (Note) -
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Abstract
Briefly, in accordance with one embodiment of the invention, bit and power loading may be utilized to select a modulation rate and subcarrier power scaling based on channel state information. As a result, a higher data rate may be utilized for a given signal-to-noise ratio while maintaining a constant bit error rate.
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