Optical Fiber Communications 4th Edition by Gerd Keiser

Exercise 13

Based on the Shannon theorem, the maximum data rate R of a channel with a bandwidth B is R = B log 2 (1+S/N), where S/N is the signal-to-noise ratio. Suppose a transmission line has a bandwidth of 2 MHz. If the signal-to-noise ratio at the receiving end is 20 dB, what is the maximum data rate that this line can support