Consider the following Z channel: Suppose that three information symbols (and a tail of two dummy zeros) are encoded by the encoding matrix G(D) = (1 + D + D 2 1 + D 2 ). a) Find the Fano metric. b)...

Consider the following Z channel:

Suppose that three information symbols (and a tail of two dummy zeros) are encoded by the encoding matrix G(D) = (1 + D + D²
1 + D²
). a) Find the Fano metric. b) Use the stack algorithm to decode the received sequence r = 01 00 00 10 10. c) Is the decision in (b) maximum-likelihood?