Suppose x(t) is a continuous-time signal and x(n) is a discrete time signal obtained by sampling the signal x(t) at a Nyquest sampling frequency Fs. The signal x(t) requires a bandwidth of B1 Hz for faithful transmission through a communication channel, while the signal x(n) requires B2 Hz in the same communication channel.
1-Is there are any relationship between B1 and B2? are the two equal?
2- Is it true that a digital signal utilizes bandwidth more efficiently as compared analog signal (perhaps by multiplexing) ?
Thanks for useful comments. I am a little bit confused. I can get a clear idea if someone can answer my following question:
Digital signals can utilize bandwidth more efficiently as compared to Analog. Is this true or false?