Message: dc$-$biased sinewave$,8$ Hz M$($t$)=$sin$(2*$pi$*8*$t$)+1\mathrm{.}1$ volt

b$)$ Sampling: Natural sampling, duty cycle and frequency need to be determined

c$)$ Quantizer: uniform

d$)$ Encoder: $5$ bits

e$)$ Line code: NRZ$,-5,5$ volts

f$)$ Modulator: $(2$bits S$-$to$-$P$,$ QPSK$,$ carrier need to be determined$)$

g$)$ Channel: AWGN $($S$/$N at the input $0$ dB and at the output $-20$dB$)$

h$)$ Demodulator: includes filter, demodulator and decision making unit. The characteristics of the filter need

to be designed