The example in Lecture 22 on maximum likelihood sequence estimation had a modulation order πM=2π corresponding to the 2 BPSK symbols '+1' and '-1'. The channel was FIR order πN=1π, i.e., the delay-sp
a) πN=1π, i.e., the delay-sp
b) πM=1π, i.e., the modulation order
c) πN=2π, i.e., the delay-sp
d) πM=2π, i.e., the modulation order