Question

Problem 3: Frequency Division Multiplexing (FDM) and Time Division Multiplexing (TDM) [20 points) a) Assuming you have 4 frequency bands to transmit using FDM Design a logic circuit to perform this function. You are being asked to design a logic circuit represented by the block diagram below, start with a truth table Ch1 Ch2 4:1 Mux Output Band Ch3 Ch4 The above block diagram is generic and can be used for time division multiplexing (TDM) with inputs TI, T2, T3 and T4 and output Output Time Provide the Round Robin scheduling that would fairly allocate each time a slot for transmission

Answer 1

y cha ual Chs - multiplexer with its selection at a time using he can transmit one band lines have 2 selections lines so, so for Uxi mux we will ool chi cha chs 0 chy

- - Ich taxilote y 4 si su ya Ji šo chi + 5, So Chz + Si Jo Chat Siso chy. Similarly for time domain I luxl output Time Šutista 1 s, so output Time = Ţ Jo Ti + 5; So Tz + Sp Jo T3t spsoły.