Time Division Multiplexing - TDM

Ask

Four messages band limited to W, W, 2W and 3W respectively are to be multiplexed using time division multiplexing. The minimum bandwidth required for transmission of this TDM signal is

(a) W            

(b) 3W

(c) 6W          

(d) 7W

Answer is (c )

Concept

Minimum bandwidth required for transmission = 2 x (maximum frequency of the message signal)

Thus, we have 6W = 2 x (3W)