Channel estimation for OFDM-based wireless communication system using sparsely spaced pilot subcarriers
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United States of America Patent
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Mar 6, 2012
Grant Date -
Nov 6, 2008
app pub date -
May 1, 2008
filing date -
May 4, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A device and method for performing a channel estimation for an OFDM-based wireless communication system using sparsely spaced pilot subcarriers estimates missing pilot subcarriers in an interpolation window using pilot subcarriers that are outside of the interpolation window to produce estimated pilot subcarriers for the interpolation window. The pilot subcarriers in the interpolation window and the estimated pilot subcarrier are used to compute pilot channel estimates for the interpolation window, which are then used to derive data channel estimates for the interpolation window.
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