Channel profile estimation for OFDM-based communication system
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United States of America Patent
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Mar 13, 2012
Grant Date -
Nov 6, 2008
app pub date -
May 1, 2008
filing date -
May 4, 2007
priority date (Note) -
Expired
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Abstract
A device and method for performing a channel profile estimation for an OFDM-based wireless communication system uses an averaged frequency coherence metric to select a particular channel profile, which is a current channel profile estimate. The averaged frequency coherence metric is derived using correlations between pilot subcarriers of an OFDM-based signal at predefined subcarrier locations for multiple frames of the OFDM-based signal. The selected channel profile may be used for channel estimation, as well as for link adaptation, to improve the performance of these processes.
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