MIMO OFDM system
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United States of America Patent
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Jun 27, 2006
Grant Date -
Dec 20, 2001
app pub date -
Feb 23, 2001
filing date -
May 22, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
A MIMO OFDM system includes a plurality of space-time encoders for encoding respective data blocks with independent space-time codes. The transformed data block signals are transmitted by a plurality of transmit antennas and received by a plurality of receive antennas. The received data is pre-whitened prior to maximum likelihood detection. In one embodiment, successive interference cancellation can be used to improve system performance. Channel parameter estimation can be enhanced by weighting the channel impulse response estimates based upon a deviation from average.
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