An alphanumeric source is connected to voice-grade telephoneline with a useable bandwidth of 3000 Hz and SNR of 20 dB at theline output. Assume that the source has 128 equiprobable andstatistically independent characters. If the channel noise is whiteGaussian.
a. Determine the source Entropy.
b. Determine the maximum theoretical rate at which the information can be transmitted over the telephone line witharbitrarily small probability of error.