Modulation is the act of translating some low-frequency or baseband signal (voice, music, and data) to a higher frequency. Why do we modulate signals? There are at least two reasons: to allow the ...

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The average textbook definition of modulation reads: modulation is a process in which the frequency, phase or amplitude of a carrier wave varies in step with the instantaneous value of the modulating ...

As mobile communications become more pervasive, the amount of data flowing around the various networks and – importantly, the various parts of the spectrum – grows inexorably. The world, it is claimed ...