CISC 7332X Spring 2021 Final Exam

1. ~20 terabits/second; 8*(((18T*(5000/0.5) / 20)/60))/60
2. 5.12 microseconds
3. c
4. d
5. b
6. a
7. c
8. 24Mbps; 6 * log(15+1)/log(2)
9. 6;   6* log(31+1)/log(2) = 30 = 2B * log M / log(2); M=6
10. 4.8336 Mbps;  6 - 6 * -(0.97*log(0.97)/log(2) + 0.03*log(0.03)/log(2))
11. 1.2084Mhz; 4.8336 = 2 * 1.2084 * log(4)/log(2)
12. 15; 4.8336 = 1.2084 * log(SNR+1)/log(2); 4 = log(SNR+1)/log(2); SNR=15
13. 34.69Mhz; 300Mbps = 34.69 * log( (4+0.010)/0.010 ) /log(2)
14. -0.10; 10 * log ( 3.9 / 4 ) /log(10)
15. 20; 10 * log(100)/log(10)
16. 140Mbps;  SNR=127; 20 * log(127+1)/log(2) = 140Mbps
17. c
18. d
19. e
20. c