Methods and apparatus for channel estimation in MIMO-OFDM communication system
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United States of America Patent
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Sep 1, 2015
Grant Date -
Feb 28, 2013
app pub date -
Aug 24, 2012
filing date -
Aug 30, 2011
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Abstract
A wireless receiver is configured to perform a method of channel estimation in a multiple input multiple output (MIMO) network. The method includes despreading a vector of received samples to determine an average channel estimate for each of a plurality of multiplexed layers associated with the MIMO network, canceling inter-layer interference using the average channel estimates for the layers and obtaining a time-varying estimate for each layer, and estimating the channel using a two-dimensional minimum mean squared error (2D MMSE) technique.
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