Orthogonal frequency division multiplexing wireless...

Details Orthogonal frequency division multiplexing wireless... Orthogonal frequency division multiplexing wireless...

2003-11-24

2009-06-16

Mills, Donald L (Department: 2416)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S208000, C370S210000, C455S102000

Reexamination Certificate

active

07548522

ABSTRACT:
Disclosed is an OFDM (orthogonal frequency division multiplexing) wireless communication system operable on a frequency selective channel, and a channel compensation method. An IDFT (inverse discrete Fourier transform) unit of a transmitter includes first through third N-point IDFT units, and performs IDFT on a binary information signal twice. A DFT (discrete Fourier transform) unit of a receiver includes first through third N-point DFT units, a channel predictor and interpolator, and a channel compensator, and performs DFT on the signal received from the transmitter twice.

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