The numbers in parentheses indicate the number of marked items (1
mark each).

			      Labs

A Pre-Lab report was only required for Lab 3.

Lab 1 Report (4)

- a reasonable plot of collected multipath data
- histogram of measured data and a superimposed Rayleigh distribution
- a reasonable plot of path loss vs distance (mean varies over time)
- reasonable path loss exponent (i.e. between 1.5 and 6)

[I marked the results correct if your estimated path loss
exponent was within this range even though many (most?) students
fit a line to a dB vs distance curve instead of dB vs
log(distance).]

Lab 2 Report (4)

- GUI & spectrum analyzer captures (4)
- answers (4)
  - adding two complex sinusoids
  - real spectrum has carrier and ...
  - period = ... and ...
  - aliasing

Lab 3 Pre-Lab (1)

- spreadsheet in a PDF file

Lab 3 Report (5)

- two flowgraphs
- GUI screen capture of run-time window
- spreadsheet
- BER curves
- calculation of coding gain

Lab 4 Report (2)

- C code
- screen capture of terminal emulator output

Lab 5 Report (3)

- screen capture of GRC flowgraph
- spectra for the 5 OFDM signals
- reasonable explanations

Lab 6 Report (4)

- screen capture of GRC flowgraph
- spectrum analyzer screeen capture
- table of measurements with at least one value of OIP3 between 20 and 30 dBm
- a comparison with manufacturer's specification

			   Assignments

Assignment 1 (18)

Q1: 3%  (1)
Q2: rms=1.35us (1)
Q3: 22+50=72 (2)
Q4: (a) 10, 8.4, 11.5 dB (3)
    (b) 10; 6 or 10 (2)
Q5: 1.3 km (1)
Q6: (a) each 0.25 (1)
    (b) 4/9, 2/9, 1/9 (1)
    (c) 0.5, 0 (1)
    (d) (a,c); (a,b); (a) (3)
Q7: MI=0.68 (1)
    code (1)

Assignment 2 (8)

Q1: 
(a) 6us
(b) 60us
(c) 64
Q2:
(a) PAPR = 1
(b) N^2, N (2)
(c) some reasonable code
Q4: ~14 dB 


Assignment 3 (7)

Q1:(a)
   - all NF correct (1.1, 3.9, 3.5)
   - all OP1 correct (15 (12?), 5.7, 27)
   (b) 
   - total gain = 64dB
   - system NF = 1.3dB
   - system IIP3 ~= -31dBm

Q2: OIP3=2.5dBm

Q3: F=3.3 or 3.6 dB

			  Mid-Term Exam

One mark was assigned for each of the following essential
elements of a correct solution:

Question 1 (7)

- use of Friis equation
- correct wavelength
- correct linear antenna gain
- correct received power in dBm

- not mixing up dB and dBm (1 mark)
- correct received signal level (2 marks)

Question 2 (4)

- correct calculation of rho
- correct probability

- correct value of fm
- correct calculation of Nr

Part 2 

Question 1 (4)

- correct entropy 
- correct dmin
- correct correctable & detectable errors
- correct minimum-distance c/w

Question 2 (3)

- k = n-k = 2
- codewords * 1/2 mark each, or -1 if left out parity bits from codewords
- correct P matrix

			   Final Exam

Q1 (6):

- correct equation for path loss
- correct calculation of wavelength
- correct path loss & units (-1/2 for wrong sign)
- uses Friis equation
- correct unit conversions
- correct answers

Q2 (4):

- correct calculation of fm
- correct calculation of rho (or rho^2)
- correct NR (1/2 for correct equation)
- correct tau-bar (1/2 for correct equation)

Q3 (5):

- calculation of number of subcarriers
- symbol duration without extension
- symbol duration
- symbol rate
- bit rate

Q4 (7):

parity check matrix (3):
-   correct dimensions
-   correct transpose
-   correct I matrix
codeword (4):
-    -2 for each incorect bit value (max deduction is -4)
-    -0.5 if computed codeword but gave data part as answer

Q5 (3):

- correct OIP3 in dBm (2 marks)
- convert to Watts

Q6 (3):

- use correct cascade equation
- convert noise figures to linear units
- correct answer