(a) For binary polar signalling with the received peak amplitude Ap = 0.0016, determine the detection error probability if the channel noise is Gaussian with rms value σn = 0.0004. (b) Suppose the same basic pulse is used for on-off signalling and bipolar signalling. Find the corresponding detection error probabilities. (c) In order to achieve the same detection error probability as in the polar case, what must be the peak amplitudes for the on-off and bipolar cases?