Patent ID: 7039126
Filing Date: 2006-05-02
Classification: H04L

Abstract:
1. A communications system, comprising: a modulator for modulating a digital data stream onto a carrier wave to generate a modulated signal, the modulator converting data in the data stream into symbols for transmission by the communications system, the symbols being encoded into one of M possible symbols of a M-ary constellation, wherein each symbol is defined by one of a plurality of phases and one of a plurality of magnitudes; and an amplifier for amplifying the modulated signal prior to transmission to generate an amplified signal, the amplifier having a non-linear characteristic that generates a non-linear distortion in the modulated signal, wherein the M-ary constellation is a 24 point constellation having 16 points defined by a first magnitude and 8 points defined by a second magnitude, wherein the second magnitude is less than the first magnitude.