Question 5 An FSK system transmits binary data at the rate of 3 Mbps. During transmission, white Gaussian noise of with power spectral density (No/2) of 10-20 watts per hertz is added to the signal. In the absence of noise, the amplitude of the received sinusoidal wave for digit '1' or '0' is 1 microvolt. (a) Compute the received signal energy per bit. [10 Marks] (b) Calculate the average probability of symbol error, Pe, using the QPSK modulation technique. [10 Marks]