Can someone help me to solve this Network probs please?

thanks.

(1) An analog signal carries 4 bits per signal element. If 1000 signal elements are sent per second, find the bit rate (2) Calculate the baud rate for the given bit rate and type of modulation. Assume d 1 Hint: S -N/r, where r log 2 (L) A. 2000 bps, FSK B. 4000 bps, ASK C. 36.000 bps, 64-QAM (3) Draw the constellation diagram for the following A. Point with amplitude 1 and angle-45 degree B. Points with amplitude 1 and angles -90 and 270 degrees C. Binary ASK, with peak amplitude values of 1 D. 8-QAM with 2 different peak amplitude values 1 and 3, and 4 different phases (4) What is the required bandwidth for the following cases if we need to send 4000 bps? Assume d-1 A. ASK B. FSK with 2 Af-4 kHz C. Multilevel FSK with L 8 and 2 f_ 4 kHz D. 16-QAM (Note: bandwidth for QAM is the same with ASK-however, r is different) (5) We have an available bandwidth of 100 kHz which spans from 200 to 300 kHz. What should be (a) the carrier frequency and (b) the bit rate, if we modulated our data using (choose fc in the middle between 200 and 300 kHz, that is 250 kHz A. ASK with d-1.r-1 B. FSK with d 1 (NOTE: B-(1 + d) S + 2 Af. In this case 2 f-50 kHz)