Question: A continuous-time signal is sampled and then transmitted as a PCM signal. The random variable at the input of the decision device in the receiver

A continuous-time signal is sampled and then transmitted as a PCM signal. The random variable at the input of the decision device in the receiver has a variance of 0.01 volts2

(a) Assuming the use of polar NRZ signaling, determine the pulse amplitude that must be transmitted for the average error rate not to exceed 1 bit in 108 bits.

(b) If the added presence of interference causes the error rate to increase to 1 bit in 106 bits, what is the variance of the interference?

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a The average probability of error is where E ATb We may rewrite this formula as P 12erfc We are giv... View full answer

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