Patent ID: 8040966

Claim:
A method for communicating data over a transmission medium having at least a first subchannel and a second subchannel, the method comprising: identifying a static component of the transmission medium, wherein the static component is identified prior to dividing the transmission medium into the first subchannel and the second subchannel; determining a first function of noise versus frequency or a first function of attenuation versus frequency for the static component over the first subchannel; determining a second function of noise versus frequency or a second function of attenuation versus frequency for the static component over the second subchannel, wherein the determination of the second function is made independently from the selection of the first function; selecting a first wideband modulation scheme for the first subchannel based upon the determined first function; selecting a second wideband modulation scheme for the second subchannel based upon the determined second function, wherein the selection of the second wideband modulation scheme is made independently from the selection of the first wideband modulation scheme; communicating a first portion of the data over the first subchannel using the first wideband modulation scheme; and communicating a second portion of the data over the second subchannel using the second wideband modulation scheme.