Method and system of channel analysis and carrier selection in OFDM and multi-carrier systems
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United States of America Patent
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Issued Date -
Dec 18, 2003
app pub date -
May 6, 2003
filing date -
May 6, 2002
priority date (Note) -
Abandoned
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Abstract
The invention presents a novel method to channel estimation in OFDM systems. The embodiment of this invention is a block of new logic and modifications performed to other components of the system, added to any existing OFDM receiver, which utilizes information available from other blocks as found in the receiver. This logic would improve the units' error rate because of the improved channel quality estimations it makes available. This improvement is made possible because both channel noise data and channel signal data are used in the estimation process. This data goes through a learning process over time and multiple data blocks for further improvements in the quality of the estimate. This improvement is possible without any direct communications with other remote units, but it could be used in a multi-node environment to improve the performance of the system as the whole.
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