A method, device and network for compressing cable modem data signals and conserving bandwidth within the network. Cable modems transmit upstream data signals to a fiber node which compresses the data signals and transmits the compressed signals upstream to a headend which decompresses the data signals. The fiber node compression may be by a shaping filter or a fast Fourier transform (FFT) function. The headend decompression may be by an inverse shaping filter or an inverse FFT function.