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Consider a system where we transmit the same binary signal over two different channels simultaneously. After processing, we have two random variables, r1 = s
Consider a system where we transmit the same binary signal over two different channels simultaneously. After processing, we have two random variables, r1 = s + w1 r2 = 3s + w2 where s, the signal, is either equal to +1 or ?1 with equal probability, and where w1 and w2 are two statistically independent Gaussian random variables, with zero mean and variance ? 2 W , which are also independent of s. Find: (a) The decision rule which leads to the minimum probability of error. (b) The resultant probability of error.
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