Frequency division multiple access is a technology in which multiple frequencys are sent in a same instant of time. As shown in the figure in the same time there are multiple call which are being transmitted. The main advantage of this access technology over TDMA is that it simple and easy to decode and does not require any complex mechanism to decode the signals. the major drawback of this kind of technology is that it requires higher bandwidth while transmitting thus this type of technology should not be used where frequency is minimum.
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