High doppler channel estimation for OFD multiple antenna...

Multiplex communications – Generalized orthogonal or special mathematical techniques – Fourier transform

Reexamination Certificate

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C370S310000, C370S334000, C375S346000, C455S218000

Reexamination Certificate

active

07619964

ABSTRACT:
Fast fading in cellular systems causes time variation of the Channel Impulse Response (CIR) resulting in significant performance degradation that is reduced by adding a pulse train to the transmitted data symbols and estimating the CIR by averaging the symbols as they vary from one OFDM symbol to another within the physical data frame (or packet).

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