Frequency-division multiplexing
Illustrate the term Frequency-division multiplexing with example?
Expert
Frequency-division multiplexing (or FDM) is an analog method which can be applied when the band width of a link (in Hz) is bigger than the combined bandwidth signals to be transmitted.
In FDM, signal produced by each sending device modulates distinct carrier frequencies.
These modulated signals are then combined into a single composite signal which can be transmitted by link.
Example: Radio, television broad casting and so on.
What is meant by the term data communication?
Public Key Encryption: Public key encryption employ public and private key for encryption and decryption. In this method, public key is employed to encrypt messages and merely the corresponding private key can be employed to decrypt them. To encrypt a
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