Question: Find the average error probability in Problem 13. Problem 13 Suppose that the random variable X is transmitted over a communication channel. Assume that the

Find the average error probability in Problem 13.


Problem 13

Suppose that the random variable X is transmitted over a communication channel. Assume that the received signal is given by Y = 2X +W, where W ∼ N(0,σ2) is independent of X. Suppose that X = 1 with probability p, and X = −1 with probability 1 −p. The goal is to decide between X = −1 and X = 1 by observing the random variable Y . Find the MAP test for this problem.

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To find the Maximum A Posteriori MAP decision rule we need to determine the decision boundary that maximizes the posterior probability of the transmit... View full answer

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