DONT USE CHAT GPT

$1.$ Which of the three analog$-$to$-$analog conversion techniques $($AM$,$ FM$,$ or PM$)$ is

the most susceptible to noise? Defend your answer

$2.$ Calculate the baud rate for the given bit rate and type of modulation.

a$.2000$ bps$,$ FSK

b$.4000$ bps$,$ ASK

c$.6000$ bps$,$ QPSK

d$.36,000$ bps$,64-$QAM

$3.$ Calculate the bit rate for the given baud rate and type of modulation.

a$.1000$ baud, FSK

b$.1000$ baud, ASK

c$.1000$ baud, BPSK

d$.1000$ baud, $16-$QAM

$4.$ What is the number of bits per baud for the following techniques?

a$.$ ASK with four different amplitudes

b$.$ FSK with $8$ different frequencies

c$.$ PSK with four different phases

d$.$ QAM with a constellation of $128$ points

$5.$ How many bits per baud can we send in each of the following cases if the signal

constellation has one of the following number of points?

a$.2$

b$.4$

c$.16$

d$.1024$

$6.$ What is the required bandwidth for the following cases if we need to send $4000$ bps$?$

Let d $=1.$

a$.$ ASK

b$.$ FSK with $2$f$=4$ KHz

c$.$ QPSK

d$.16-$QAM

$7.$ The telephone line has $4$ KHz bandwidth. What is the maximum number of bits we

can send using each of the following techniques? Let d $=0.$

a$.$ ASK

b$.$ QPSK

c$.16-$QAM