Modern Communication Systems (EEET 4036), SP5-2015
This homework assignment has 2 questions. There are 29 marks in total. Note that the questions can be
solved independently.
Your answers must be submitted as a single
.pdf
le not exceeding 4 pages. You may include plots or
drawings to illustrate your answers, but use them sparingly.
Matlab
code listings are to be submitted as
.m
les. All les, combined into a single
.zip
le, must be submitted via the course website.
In this homework assignment we consider QAM baseband transmission over a noisy channel with signal
attenuation and phase osets. A block of (
L
+
K
) symbols is transmitted at a symbol rate of
R
s
= 1
=T
symbols per second. The symbols
u
j
with
j
= 1
;
2
;:::;L
+
K
are taken from some QAM constellation
alphabet
A
. The transmitted waveform is
u
(
t
) =
L
+
K
X
j
=1
u
j
p
(
t