Patent ID: 7609757
Filing Date: 2009-10-27
Classification: H04L

Abstract:
1. A method for data communication over a transmission channel, comprising: (a) evaluating, by a communications transceiver, a channel response characteristic with respect to a constellation size and a single carrier having an adjustable center frequency of a transmission signal; (b) varying, by the communications transceiver, the adjustable center frequency of the transmission signal; (c) determining, by the communications transceiver, a maximum spectral allocation for the transmission channel for which a signal-to-noise ratio is less than a predetermined value; (d) re-evaluating, by the communications transceiver, the channel response characteristic with respect to the varied center frequency; and (e) determining, by the communications transceiver, an optimal constellation size and optimal center frequency responsive to at least one of an optimum bit rate and an optimum noise margin.