Question: Assume a benign passband channel, B(f) = 1, with real additive Gaussian noise with power spectrum SN(f) = N0/2.
The transmit filter produces a 100% excess-bandwidth raised-cosine pulse. The transmit power cannot be greater than unity. The complex envelope f( t) of the receive filter is an ideal low-pass filter that permits the 100% excess-bandwidth pulse to get through undistorted. The constellation is 16-QAM. Find the probability of error as a function of N0 and T.