Assuming I have 2 channels:
BSC => Z
Z=> BSC
the first channel is a concatenation of the BSC channel and then the Z channel. the second channel is a concatenation of the Z channel and then the BSC channel.
Where the Z channel is as defined in here and the BSC channel is as defined in here
How can I know which channel has an higher capacity. Is there a difference in the order of the concatenation?
Hint: the concatenation of two binary channels is another binary channel, just compute the four transition probabilities