Modulates an information sequence of integers x in the range
[0 … M-1] onto a quadrature amplitude modulated signal
y, where M = length (c) - 1 and c is a 1D vector
specifying the signal constellation mapping to be used. An example of
combined 4PAM-4PSK is
d = randint (1, 1e4, 8); c = [1+j -1+j -1-j 1-j 1+sqrt(3) j*(1+sqrt(3)) -1-sqrt(3) -j*(1+sqrt(3))]; y = genqammod (d, c); z = awgn (y, 20); plot (z, "rx")
See also: genqamdemod.
Package: communications