Ofdm multiple sub-channel communication system

Details Ofdm multiple sub-channel communication system Ofdm multiple sub-channel communication system

H - Electricity

04

J

H04J 11/00 (2006.01) H04B 1/02 (2006.01) H04B 1/06 (2006.01) H04L 5/02 (2006.01) H04L 27/26 (2006.01) H04L 1/00 (2006.01)

Patent

CA 2390253

A transmitter and corresponding method for transmitting an OFDM signal in a communications channel, including a plurality of base-band OFDM modulators, each for modulating a respective data signal onto a plurality of orthogonal sub-carriers and outputting a respective sub-channel OFDM signal; and a fast convolution filter and up-converter for applying fast convolution filtering and digital up-conversion to the sub-channel OFDM signals to output a combined OFDM signal that includes each of the sub-channel OFDM signals, the fast convolution and up-converter filtering each of the sub-channel OFDM signals and frequency shifting all of the sub-channel signals to respective designated frequencies within the combined OFDM signal. A corresponding receiver is also provided.

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