Transmission method for OFDM-MIMO communication system
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United States of America Patent
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Nov 24, 2009
Grant Date -
Mar 30, 2006
app pub date -
Sep 26, 2005
filing date -
Sep 24, 2004
priority date (Note) -
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Abstract
A data transmission method in a MIMO-OFDM communication system including at least one receiver for receiving a signal through a plurality of reception antennas and a transmitter for selecting a transmission channel using channel information being fed back from the receiver and transmitting a signal through a plurality of transmission antennas. The method includes selecting a spatial subchannel in which when bits are added by applying at least two spatial modes having different multiplexing gains for an individual subcarrier in a frequency domain, the minimum power increment is required during application of each spatial mode; allocating a spatial mode that requires the minimum total accumulated power, for each subcarrier; and selecting all subcarriers in the order of a subcarrier that requires the minimum power increment.
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