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Glossary
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- QAM
Quadrature Amplitude Modulation. QAM involves modulating the amplitude of two separate carrier waves, exactly 90 degrees out of phase with each other (sine and cosine). These are therefore called quadrature carriers, from which the scheme derives its name. M-QAM conveys information by means of M different combinations of amplitudes of the two carriers ( In LTE M=16 or 64 for both uplink and downlink (although M=64 is optional for the uplink).
