could someone pls explain why qam is preferred to cap in adsl.also how can we maximize the existing bandwith
- posted
17 years ago
adsl
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- posted
17 years ago
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| could someone pls explain why qam is preferred to cap in adsl.also how | can we maximize the existing bandwith
From the best of my knowledge...
Quadrature Amplitude Modulation -- Allows more data to be stored within each cycle by breaking up each cycle period into sub-periods representing a bit of information whose value depends upon the amplitude of the wave.
Carrierless Amplitude Phase Modulation -- Precedes QAM and can't fit the same quantity of data thus it being superceded by QAM.