Patent ID: 7289425

Claim:
A system for receiving an input, for communicating the input as a divisional multiplexed signal having orthogonal subcarrier components communicated over a channel, and for providing an output, the system comprising, a transmitter mapper for providing the orthogonal subcarrier components from the input, a transmitter inverse transform for respectively inverse transforming the orthogonal subcarrier components into transmitter inverse transformed signals, a transmitter forward transform for respectively forward transforming the orthogonal subcarrier components into transmitter forward transformed signals, a transmitter multiplexer for divisional multiplexing the transmitter inverse transformed signals and the transmitter forward transformed signals into the divisional multiplexed signal being communicated over the channel, a receiver demultiplexer for receiving and for divisional demultiplexing the divisional multiplexed signal into receiver inverse transformed signals and receiver forward transformed signals, the receiver inverse transformed signals originating from the transmitter inverse transformed signals and the receiver forward transformed signals originating from the transmitter forward transformed signals, a receiver forward transform for forward transforming the receiver inverse transformed signals into first parallel mapped signals, a receiver inverse transform for inverse transforming the receiver forward transform signals into second parallel mapped signals, a receiver mapper for respectively mapping the first and second parallel mapped signals into first and second receiver signals, a combiner for combining the first and second receiver signals into the output.