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Interpolation-Based Maximum Likelihood Channel Estimation Using OFDM Pilot Symbols

Overview An interpolation-based maximum likelihood channel estimation scheme using OFDM pilot symbols is proposed. Instead of direction estimation of the frequency response on each subchannel, an interpolation filter is used on the pilot symbols to estimate a smaller set of coefficients that are sufficient to characterize the multipath channel. The actual frequency responses on the subchannels are then computed through inverse filtering of these coefficients. Because the same amount signal energy is used to estimated a reduced set of unknowns, the estimation accuracy is improved.

Further White Paper Details
Publisher	Regents of the University of California	File Format	PDF, requires Acrobat Rdr 5
Date Published	February 2002	Downloads	6
Format	White Papers
Topics	Modems

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