Marking of Final Exam

• Question 1
  2 for each part, (in each part, 1 for method, 1 for answer): (a: yes, b: 663 uW/m^2, c: 75 mW, d: 18.8 mW).
• Question 2
  1 for noise power (-132 dBm), 1 for using Friis equation, 1 for signal power (-112.5 dBm), 1 for correct answer (-11.5 dB)
• Question 3
  1 each for correct answer to parts (a) (Rayleigh) and (b) (Gaussian), 3 for part (c) (1 for method, 1 for correct sigma (10 dB), 1 for correct answer: 1 or 2 at 2 sigma)
• Question 4
  1 for method, 1 for correct value of first and second moments, 1 for correct final answer (0.47 us)
• Question 5
  1 for f_D ~= 83 Hz, 1 for equation for N_R, 1 for either solution (2.5 (wrong) or 0.005 (right)), 1 for correct answer (59 dB).
• Question 6
  2 for each part (1 for equation, 1 for answer) (beta=4, SNR=39 dB).
• Question 7
  1 for using AWGN BER equation, 1 for averaging BER (not Eb/No), 1 for calculation, 1 for answer (5.9E-2)
• Question 8
  1/2 mark per right answer (part 6 for IS-95 not marked) (AMPS: F,T,F,F,F,F,T), (GSM: F,T,T,F,T,T,F), (IS-95: T,T,F,T,T,T/F,T)
• Question 9
  1 mark per correct answer (G,F,A,H,K,B,J,D,E,L,C,I)
• Question 10
  2 marks for signal power calculation and answer (-96 dBm), 2 marks for noise power calculation and answer (-125 dBm), 2 marks for final calculation and answer (19 dB)