Question

Explain types of multiplexing.

Answer 1

there are 3 types of multiplexing:

(1) Space Division Multiplexing:

There is a physical link or path dedicated to each sender and reciever path. Telephone system is a most common example of SDM.

in this separate links are maintained.

(2) Frequency Division Multiplexing:

FDM is a technique which uses different frequencies to combine multiple streams of data for transmission over a communication channel. Television transmitter uses FDM to broadcast channels.

(3) Time Division Multiplexing:

In TDM , there is only one path and carrier frequency and each user is assigned a unique time slot for data transmission. It is a sequential system. Each user has alloted bandwidth for a limited time. GSM(sim) is an example.