Patent ID: 7408980

Claim:
A method of managing power spectra for digital communications from first and second transmitters, comprising the steps of: initializing a price parameter value; at the first transmitter, maximizing a tolerable power spectral density for the second transmitter subject to a power spectral density for the first transmitter corresponding to a target data rate at the first transmitter, for the price parameter value; at the second transmitter, deriving a power spectral density for the second transmitter to maximize a data rate for the second transmitter, for the price parameter value; comparing the tolerable power spectral density for the second transmitter to the derived power spectral density for the second transmitter; adjusting the price parameter value responsive to the comparing step; and repeating the maximizing, deriving, comparing, and adjusting steps until the result of the comparing step reaches a convergence criterion; then setting the power spectral density for the first transmitter to a result of the last repetition of the maximizing step; and setting the power spectral density for the second transmitter to the derived power spectral density from the last repetition of the deriving step.