OFDM transmitting/receiving device and method
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United States of America Patent
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Feb 5, 2002
Grant Date -
N/A
app pub date -
Jun 29, 2000
filing date -
Nov 6, 1998
priority date (Note) -
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Abstract
An average value of reception power of subcarriers A to D is calculated by a control circuit 162, and the average value is divided by envelops of received signals of subcarriers A to D, respectively, so as to calculate a coefficient signal of each subcarrier. Multipliers 106 to 109 multiply transmitting signals of subcarriers A to D output from mapping circuits 102 to 105 by the coefficient signals, respectively. Whereby, power between the subcarriers at a reception time can be maintained substantially constant so as to improve an error rate characteristic.
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