ECE 732: Mobile Communication Systems Prof. B.-P. Paris Homework 4 Due: October 30, 2018
Reading:
Goldsmith - chapter 6 and 7.
Problems
Since the probability of error expressions for Rayleigh fading
channels are quite cumbersome and sometimes intractable, this
homework aims to find these error rates via simulation.
You may find the MATLAB script simulateDiversity.m helpful as a starting
point for this assignment.
Simulate a receiver that uses selection diversity. Measure the
symbol error probability and the outage probability for diversity
orders L = 1, 2, 3, 4, 8. For each diversity order, vary the
signal-to-noise ratio so that you measure bit error rates down to
10-4. Summarize your results in a plot (similar to those in chapter 7
of the textbook). Make sure to indicate confidence intervals (see
MATLAB function errorbar) on your plots. If possible, plot the
theoretical error curves in the same plot.
Repeat problem 1 for maximum-ratio-combining (MRC).
Think of another form of diversity combining. You may use one
of the other methods in the textbook or you can make one up
(e.g, select the strongest signal - not the same as the strongest
channel). Simulate the error rates for this receiver.
What is the significance of the confidence intervals that the
MATLAB script produces?