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NTC 362 Week 4 Learning Team Assignment- Hardware and Software Paper

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Running head: TIME DIVISION MULTIPLE ACCESS,FREQUENCY
1
Time Division Multiple Access, Frequency Division, Multiple Access, and Orthogonal
Frequency Division Multiplexing
NTC362
Daniel Aldama
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TIME DIVISION MULTIPLE ACCESS,FREQUENCY
2
Frequency Division Multiple Access
As the name implies, Frequency Division Multiple Access (FDMA), utilizes
Frequency Division Modulation (FDM) to separate the given spectrum into individual
analog bands or channels. A simplified view of how this is done can be seen in figure 1
below. Each of these channels is then able to facilitate communication for a single user.
According to (Goleniewski, 2007) each FDMA cell is able to facilitate about 60 users,
which is very a low number by current standards.
Figure 1. Goleniewski, L. (2007). Example of FDMA channel separation.
FDMA was short lived as a viable option for commercial use on its own; however,
it was an important step in the right direction. I say this because it is now a critical part
of multiple other techniques, where it is used to divide spectrum into channels before
other modulation techniques are applied. Once such technology is the one explained
next.

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