Frequency-Division Multiplexing (FDM)


Definition of Frequency-Division Multiplexing (FDM) in Network Encyclopedia.

What is FDM (Frequency-Division Multiplexing)?

Frequency-Division Multiplexing (FDM) is a signal transmission technology in which multiple signals can simultaneously be transmitted over the same line or channel. Frequency-division multiplexing (FDM) can be used in both wired and wireless networking for transmitting large amounts of data at high speeds. FDM is the simplest and oldest form of multiplexing in wireless networking technology.

frequency-division multiplexing
Frequency-Division Multiplexing

How FDM Works?

Frequency division multiplexing involves simultaneously transmitting multiple signals on different frequencies. These different frequencies, called channels, share non-overlapping portions of the total frequency band being used.

Signals from different data sources are fed into a multiplexer that modulates each signal and transmits them at different frequencies.

These signals are then transmitted over the wire or through wireless communication and are separated at the destination into individual data signals using a demultiplexer.

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