Peak-to-average power ratio (PAR) reduction based on active-set tone reservation
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United States of America Patent
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Sep 10, 2013
Grant Date -
Jun 30, 2011
app pub date -
Aug 20, 2010
filing date -
Dec 28, 2009
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Abstract
In an embodiment, a transmitter includes first and second processing blocks, which may each include hardware, software, or a combination of hardware and software. The first processing block is operable to generate a first peak-reducing vector. And the a second first processing block is operable to receive a first data vector, the data vector comprising a plurality of samples, the first data vector having a first peak with a first index and a first magnitude, a second peak with a second index and a second magnitude that is less than the first magnitude, and a first peak-to-average power ratio, and to generate a second data vector having a second peak-to-average power ratio that is lower than the first peak-to-average power ratio by using the first peak-reducing vector.
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