Channel estimation and ICI cancellation for OFDM
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United States of America Patent
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Aug 9, 2011
Grant Date -
Sep 11, 2008
app pub date -
Mar 7, 2008
filing date -
Mar 8, 2007
priority date (Note) -
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Abstract
An iterative channel estimation and inter-carrier interference (ICI) cancellation process is provided for OFDM receivers, and more particularly for mobile OFDM receivers. The iterative process uses decision feedback to estimate both the channel gain and the ICI gains, the latter being the multiplicative gain applied to the adjacent sub-carriers. Thus the receiver performs equalization and ICI cancellation in an iterative fashion and is advantageous for estimating fast fading channels.
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