dynamic adaptive multi-carrier quadrature amplitude modulation (DAM-QAM)

Dynamic Adaptive Multi-Carrier Quadrature AmplitudeModulation(DAM- QAM) is a dynamic transmission method for modems.

In DAM-QAM modulation, the line signal consists of a large number of frequency-shifted carrier oscillations. DAM-QAM transmission is therefore also called multicarrier transmission. The advantage of the DAM-QAM method is that the QAM scheme can be adapted to the line quality.