Method and apparatus for channel estimation for multicarrier...

Details Method and apparatus for channel estimation for multicarrier... Method and apparatus for channel estimation for multicarrier...

H - Electricity

04

B

H04B 7/04 (2006.01) H04B 17/00 (2006.01) H04Q 7/36 (2006.01)

Patent

CA 2273377

A method and apparatus provide channel estimation for multicarrier systems. A minimum mean-square-error (MMSE) channel estimator makes full use of time-and frequency-domain correlations of the frequency response of time- varying dispersive fading channels. A robust channel estimator that is insensitive to the channel statistics is provided. The robust channel estimator can significantly improve the performance of a multicarrier system such as an orthogonal frequency division multiplexing (OFDM) modulation system in a rapid dispersive fading channel. In addition, the estimation process can employ a new reference generator which can select the source of the reference signal as being a decoded or undecoded signal depending on the correction success rate of the decoder.

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